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Read the full Salt Lake County Addressing Ordinance.

Addressing Standards:
1.0 Purpose

The purpose of this policy is to adopt and apply standards and definitions in the addressing of streets and properties in the county, to the end that terminology and numbering shall be consistent and logical.
2.0 Definitions

The following terms used in this policy shall have the meanings set forth:

  Address (Situs Address)
A unique alphanumeric descriptor which identifies the property location of a parcel of land, building or other structure on the Countywide Grid System.
  Address Certificate
The official document, including a certificate number and the registration of a legal situs addre ss, issued to the owner or resident for their parcel, building, or other structure.
  Address Fromat
“Address Format” means the order and structure of the five standardized components used in the situs address (frontage number, directional, street name or number, street type, sub-structure suffix) (e.g. 4877 S 4980 W #101 or 1310 E Vine St).
  Baseline Street
The east and west directional street (South Temple Street in Salt Lake City, Salt Lake County) which intersects with the Meridian Street to benchmark the permanent origin of the Countywide Grid System and provides a point from which all other streets and legal situs addresses are calculated (see “Meridian Street”).
  Center
A high-density development with groups of architecturally unified structures containing commercial establishments focusing on a plan of integrated business activity and providing internal circulation of traffic. The term “Center” may be substituted for the street type component in the standardized address format.
  Collector Street
A street which carries traffic from minor streets to the major street system, including the principal entrance streets of residence development and the primary circulating streets within such a development.
  Common Name Duplication
“Common Name Duplication” means duplications of identical names on two or more streets, but with different street type designators; not to include valid subsidiary duplications (e.g. Dusk Ln and Dusk Dr).
  Continuity
The identification characteristics of a street which are maintained uniformly along its entire length including the street name or number.
  Countywide Grid System
The east/west axis and north/south axis coordinate system which has developed over the greater part of Salt Lake County to identify address and street locations.
  Critical Duplications
Duplications of identical names and street type designations on two or more streets which may or may not have overlapping frontage number ranges regardless of the direction of either the street or the frontage numbers.
  Cul-de-sac Street
A minor street having one open end and being permanently terminated at the other end by a vehicular turnaround.
  Dead End Street
A street which may or may not be permanently terminated and does not provide access to any other rights-of-way and must be entered and exited from the same point.
  Diagonal Street
A street which has its bearing at an oblique angle to the established direction of the Countywide Grid System and which has intersection coordinates that shift more than five numbers along its entire length.
  Directional
The compass direction of the legal situs address which references the Countywide Grid System and the direction in which the frontage numbers are measured along the roadway of both public and private streets. When a street number is used in the address, instead of an alphabetic name, a directional is also used to designate its direction. A directional is always abbreviated with the first letter of its compass direction in standardized address format.
  Final Plat
A map or chart of a subdivision, PUD, condominium, or other proposed development which has been accurately surveyed, and such survey marked on the ground so that streets, alleys, blocks, lots and other divisions can be identified.
  Frontage Number
The prefix component of the legal situs address which is numerically sequenced and assigned to a structure or parcel along a street according to its relative distance from the intersection of the baseline street and meridian street, perpendicular to the baseline or meridian axes of the Countywide Grid System.
  Frontage Scales
A system of measuring frontage numbers along streets according to a ratio of numbers per rod or half mile distance (i.e. 400 numbers/2640 feet or two numbers/rod). Application of the different frontage scales allows elongation or compression adjustments to smooth the Countywide Grid System.
  Highway
A state or federally designated street for the conveyance of high volume vehicle traffic.
  Intermittent Street Name Duplications
“Intermittent Street Name Duplications” means duplications of identical names and type designators on streets which end and then resume at a further point where they overcome barriers such as rivers, canals, railroad tracks, or undeveloped voids.
  Intersection
The point on the Countywide Grid System which identifies the location where two or more streets cross one another.
  Mall
“Mall” means an architecturally unified group of commercial establishments built on a site which is planned, developed, owned and managed as an operating unit and requires property identification according to sub-structure addressing procedures. The term “Mall” may be substituted for the street type in the address format.
  Major Street or Major Collector Street
A street, existing or proposed, which serves or is intended to serve as a major traffic way and which is designated on the master street plan as a controlled-access highway, major street, or parkway or other equivalent terms suitable to identify streets comprising the basic structure of the street plan.
  Marginal Access Street
A minor street which is parallel to and adjacent to a major street and which provides access to abutting properties and protection from through traffic.
  Meridian Street
“Meridian Street” means the north and south directional street (Main Street in Salt Lake City, Salt Lake County) which benchmarks the permanent origin of the Countywide Grid System and provides a datum point from which the coordinates of all other streets and legal situs addresses are calculated (see “Baseline Street”).
  Minor Street
A street, existing or proposed, which is supplementary to a collector or major street and of limited continuity, which serves or is intended to serve the local needs of a neighborhood
  Numerical Freedom
“Numerical Freedom” means the range of possible numbers which comprise the interval between frontage numbers for a given frontage scale and which may be used to interpolate and assign additional frontage numbers for high density development.
  Numerical Street Name
The assignment of an alphabetic name with numeric value to a street (e.g. Second Ave).
  Official (Street) Map
“Official (Street) Map” means any map adopted by a municipality or Salt Lake County under the provisions of state law, to include Master Street Plans labeled “Master Street Plan” of the local governments in the county, including maps and reports or both, which have been approved by the respective municipal and county planning commissions as required by law.
  Parcel of Land
A quantity of land, in the possession of, owned by, or recorded as the property of the same claimant or person.
  Phonetic Name Duplication
“Phonetic Name Duplication” means the duplication of street names which have similar or identical pronunciations, but are spelled differently (e.g. Sarah Ridge Ct and Sara Ridge Ct).
  Private Rights-of-way
Streets which are retained and maintained under the ownership of private individuals and may be intended for both private and public use.
  Public Rights-of-way
means streets which are dedicated for perpetual public use and are administered and maintained by the governing entities in which they are located.
  Square
means an architecturally unified group of commercial establishments in multiple structures built on a common site which is planned, developed, owned and managed as an operating unit. The term “Square” may be abbreviated and substituted with a street type in the address format with further identification according to sub-structure addressing procedures.
  Subdivision
Any land that is divided, resubdivided or proposed to be divided into two or more lots, parcels, sites, units, plots or other division of land for the purpose, whether immediate or future, for offer, sale, lease or development as recorded in the office of the county recorder under a unique name to identify one subdivision from another.
  Subsidiary Street Name Duplication
A street name given to a dead end or cul-de-sac street which duplicates the name of a parent street to which it intersects, and is valid when only one subsidiary name is used and when it intersects relatively perpendicular to the parent street and does not have frontage numbers in the same range or direction as those along the entire length of the parent street (e.g. Vinecrest Dr and Vinecrest Cir).
  Sub-parcel Identification
A location address descriptor which establishes a one-to-one correspondence for addressing multiple structures on a single parcel of land under the same or separate ownership.
  Sub-structure Suffix
The last component of a legal situs address which is an alphabetical or numeric code used to identify a one-to one correspondence between a building and high density occupancy structures within the building such as suites, rooms, apartments, and condominium units.
  Street
any rights-of way, under public or private ownership, for public use, designed for the travel of motorized vehicles to enter and exit through passage, and to include the ways used for internal circulation of traffic in planned unit developments.
  Street Name
The alphabetic name assigned, not including the street type designator, to identify both public and private streets which are on the Countywide Grid System, and is one of the primary components of a legal situs address.
  Street Number
“Street Number” means the name of a street designated with numerals according to its numerical position on the Countywide Grid System relative to the baseline or meridian axis streets.
  Street Type
means a standardized identification descriptor which corresponds to physical and functional characteristics of a street (i.e. Avenue, Bay, Boulevard, Circle, Court, Cove, Drive, Expressway, Lane, Parkway, Place, Road, Row, Street, and Way).

3.1 Address components.

Each address may contain the following components:

3.1.1 Frontage number

the prefix component of the address which is numerically sequenced and assigned to a structure or parcel along a street according to its relative distance perpendicular to the baseline or meridian axis streets of the Countywide Grid System

3.1.2 Directional

The compass direction component of the address which to a large degree references the Countywide Grid System, quadrant and direction, in which the frontage numbers run along the roadway of both public and private streets. The directional is always abbreviated with the single letter equivalent for its compass direction. (e.g. E, W, N, S).

3.1.3 Street name

The component of the address which is given to both public and private rights-of-way to distinguish the location of one street from another. Street names are designated in either of two forms, but never both on the same street.

3.1.3.1 Alphabetic names

Names which are numbers spelled alphabetically but do not have numerical characters, hyphens, or other non-alphabetic characters as part of the name, but may have numerical value (e.g. Second Ave). Alphabetic names are never abbreviated.

3.1.3.2 Street numbers

Names which are numerically designated according to a streets position on the Countywide Grid System relative to either the baseline or meridian axis streets. Street numbers never contain alphanumeric characters (e.g. 2nd Ave). When a street number is used in the address, a directional which corresponds to its orientation on the grid is also required and is abbreviated with the first letter of the compass direction.

3.1.4 Street type

The component of the address which modifies the name to distinguish specific locational, functional and physical characteristics of the street to which the address is assigned. Street types are designated for standard use as a component of the address and are always abbreviated as follows:

Street Type	Abbr.
Avenue	Ave
Bay	Bay
Boulevard	Blvd
Circle	Cir
Court	Ct
Cove	Cv
Drive	Dr
Expressway	Expy
Lane	Ln
Parkway	Pkwy
Place	Pl
Road	Rd
Row	Row
Street	St
Way	Wy

3.1.4. Standard building types may be substituted for street types in the address format as follows:

Center	Cntr	Commercial structures only
Mall	Mall	Commercial structures only
Square	Sq	Commercial structures only

3.1.5 Sub-structure suffix

the component of the address which is a numeric code used to identify a one-to-one correspondence between a building and high density occupancy structures within the building such as suites, rooms, apartments and condominium units. This code is always preceded with a “#” sign instead of using the work suite, unit, apt. or any other identifier when issued in standardized address format.

3.1.5.1

No address should incorporate more than five components. further, all addresses must absolutely include the first four components.

3.2 Address formats.

All applicable components of the address must be conscientiously used or the address is considered incomplete. The following address depicts correct and incorrect formats to be used in registering and issuing address certificates:

2692 E Shuttle Run Wy # 102

2692 E: Frontage Number
E: Directional
Shuttle Run: Street Name
Wy: Street Type
# 102: Sub-structure Suffix

5268 S 2200 E # 12

5268 S: Frontage Number
S: Directional
2200: Street Number
E: Street Directional
# 12: Sub-structure Suffix

3.2.1 Sample right/wrong address formats:

A.) 769 Wilson Avenue – Wrong

769 E Wilson Ave – Right

B.) 842 East 1700 South – Wrong

842 E 1700 S – Right

C.) 1700 S 842 E – Wrong

842 E 1700 S – Right

D.) 922 E 3300 S Unit 3 – Wrong

922 E 3300 S # 3 – Right

E.) 500 Union Park Center – Wrong

6925 S Union Park Cntr # 500 – Right

F.) 769 E 1760 S – Wrong

769 E Wilson Ave – Right

Coordinate number assigned to intersections should not be used as a street number and substituted for a street name.

4.0 Name Approval

4.1 Subdivision name and conditional use name approval.
Developers submitting proposed subdivisions and conditional use developments to municipal and county planning agencies shall be required to obtain approval of street names through the county addressing division, before final plat approval, to ensure that the proposed names do not duplicate other names in the county.

At such time that a subdivision or conditional use street name is approved, the developer shall send a copy of the letter of approval to the appropriate municipal or county planning and development agency for their records on the development.
4.2 Street name approval regulations and standards.
General principles of street naming are applied in the following regulations and standards with the purpose of eliminating "critical duplication," "phonetic name duplication," and the excessive use of "subsidiary name duplication" of street names.

These regulations shall be enforced to eliminate confusion, establish continuity and develop countywide uniformity according to the official street maps of governing entities of the county. The county addressing division acknowledges that municipalities may stipulate additional requirements in their name review process.
4.2.1 Approval of street names new developments.
All proposed public and private street names and types must be approved by the county addressing division at the time the plats are under final review by the respective municipal agencies. All final plats submitted to the county recorder shall be stamped "STREET NAMES AND ADDRESSING APPROVED," dated, signed or initialed by the representative who coordinated the approval of the names and addressing.
4.2.2 Approval of street names existing developments.
When it is necessary to change the name or type of an existing public or private street, the street name and type or number and the corresponding intersection coordinates must be approved by the county addressing division to eliminate confusion and duplication with other streets in the county.
4.2.2.1
When there are two or more streets of the same name within the geographic boundaries of the county, the city and county governing bodies, by ordinance and without petition, may change the name or type of any such street in their jurisdiction, so as to leave only one to be designated by the original name. The ordinance shall be recorded with the county recorder’s office.
4.2.2.2
When a city or county governing body determines to change the name of a street, it should schedule a public hearing to convey information about proposed name changes to citizens who are affected, and to eliminate capricious actions.
4.3 Street name duplications.
No duplications of street names or numbers used as names within the boundaries of the county shall be approved.
4.3.1 Critical Duplications are prohibited.
These are duplications of identical names and street type designators on two or more streets which may or may not have overlapping frontage number ranges regardless of the directional of either the street or the frontage numbers.
4.3.2 Common name duplications are prohibited.
These are duplications of identical names on two or more streets, but with different street type designators; not to include valid subsidiary duplications.
4.3.3 Phonetic Name Duplications are prohibited.
These are duplications of street names which have duplicate or similar pronunciations, but are spelled differently.
4.3.4
Subsidiary Name Duplications may be approved within the municipal jurisdictions for which the streets are located. Conditions which allow approval of these duplications are:
Only one subsidiary name is allowed
It must be assigned to an intersecting cul-de-sac or dead end street relatively perpendicular to the parent street from which it is named
It must not have frontage numbers which are in the same direction or range as those along the entire length of the parent street.
4.3.5 Criteria for eliminating name duplications.

4.3.5.1
City and county governing bodies may change street name duplications in their jurisdictions without petition when it is determined that the change is in the public interest. Arbitrary or capricious street name changes shall not be made.
4.3.5.2
Street names with historical significance should be retained, whenever possible, over other names when considering elimination.
4.3.5.3
In determining whether to change a street name the governing body may consider the following:
The number and types of buildings which will have their addresses changed;
The length of time the name has been in use;
The length of the street and the amount of traffic
Compatibility with adjacent streets.
4.3.6 Intermittent street name duplications.
The continuity of a street may be maintained so that it can continue with the same name along its entire length overcoming barriers such as rivers, canals, railroad tracks and undeveloped voids. If a street is interrupted by these features the following conditions shall apply:
4.3.6.1
If the street continues immediately on the same bearing beyond the barrier and is within line of sight, it may continue with the same name.
4.3.6.2
If a street is on the same bearing and its point of continuance beyond the barrier is beyond line of sight, it must be renamed to avoid duplication.
4.3.6.3
Any street which terminates in a cul-de-sac turnaround is considered to have established an end and cannot continue with the same name on the same bearing.
4.3.6.4
If a street is terminated by a void of unimproved land and it continues on the same bearing beyond the void, it may continue with the same name. Such a street is a “stub street” and must be required to make a connection when the void is developed.
4.3.6.5
Intermittent streets with duplicate names that currently exist and were dedicated in any municipal jurisdiction prior to the effective date of this title and are in contradiction to the above conditions, may be exempted or changed by the authorities in that jurisdiction.
4.3.7 Petition to change a street name.
Persons may petition their governing city or county governing bodies to change, by ordinance, the name of a street which fronts upon lots and land parcels which they own. Procedures to change a petitioned street name should include a public hearing and ordinance to make the change.
4.4 General naming of private and public streets.
Street names must meet subjective criteria before final approval can be given. These criteria should take into consideration historical character, local color or theme, locational characteristics, and compatibility with adjacent streets.
4.4.1 Compatibility.
Compatibility and continuity of all proposed streets with adjacent streets to which they are connected or may become connected implies they should continue with the same name or street number if they are on the same bearing. In all other cases the following criteria shall apply:
4.4.1.1
When a proposed minor street intersects a collector street, the proposed name shall maintain continuity with any existing street across from the collector street when both are on the same bearing.
4.4.1.2
When a proposed minor street intersects a major collector street such as controlled access highway, expressway or parkway, it shall not maintain name continuity with minor or collector streets on the same bearing which are across from the major collector street.
4.4.1.3
A proposed minor street or collector street shall not maintain name continuity across either of the major baseline or meridian streets (e.g. Main St and South Temple St in Salt Lake County).
4.4.1.4
A proposed collector street may maintain name continuity with other collector streets across major collector streets when they are on the same bearing.
4.4.1.5
Continuity shall be maintained on intermittent streets as defined in section 4.3.6.
4.4.1.6
All streets which are assigned a street number must maintain continuity along the same bearing regardless of their intersection with major and secondary collector streets or by interruptions with physical barriers. Street numbers should conform to the frontage scales applied in the Township and Range sections for which they are located.
4.4.2 Converting numeral designation to alphabetic names.
Streets may be assigned alphabetic names with numeric value (i.e. Second Ave, a numerical name). The Arabic equivalent (200) or alphanumeric mix (2nd) shall not be used when issuing official situs addresses or in any other address format. Further, alphabetically converting street numbers to numerical names should be discouraged and approval given on a selective review basis only.
4.4.3 Prohibited Naming Conventions.
In accordance with the goal of minimizing confusion for street names containing locational and other characteristics, the following criteria shall apply:
4.4.3.1
The four compass directions shall not be used as part of the street name (e.g. Eastwood). This is to eliminate the occurrence of double directionals in assigning the address (e.g. 1229 W. Eastwood Dr).
4.4.3.2
The standard street type designators shall not be used as part of the street name (e.g. Springlane Rd). This is to eliminate the occurrence of double street type designators in the address.
4.4.3.3
Abbreviations of part or the entire street name shall not be allowed.
4.4.3.4
A proposed street name using both the given and surname of a person shall not be approved except by petition to the city or county governing bodies who have jurisdiction in the area where the proposed name is made.
4.4.4 Street Name Length.
The length of a street name shall not be more than 13 characters including one space and two words, but not to include the street type designator.
4.5 Street type designations.
When streets are proposed, they shall be given a “street type designator” corresponding to certain physical and functional characteristics of the street. The following are the only designators which are standard and must be applied as follows:
4.5.1
“Boulevard, “Parkway,” and “Expressway”
Major collector streets with planted or other physically separate medians.
4.5.2
“Drive” and “Way”
A meandering, curvilinear or diagonal street usually longer than 1000 feet and most always connected to other rights-of way.
4.5.3
“Road”
Limited streets that may run in a direction, are most always longer than 1000 feet and usually connect with the United States or Utah State primary highways.
4.5.4
“Street” and “Avenue”
Straight streets matching principally the axes of the countywide grid system.
4.5.5
“Lane” and “Row”
Short collector or minor streets which are usually less than 1000 feet in length and may not always connect other right-of-ways. May be used in names for private rights-of way.
4.5.6
“Circle,” “Place,” “Court,” “Bay” and “Cove”
Permanent dead end streets or cul-de-sacs streets usually less than 600 feet in length and containing three (3) or more lots or separate dwelling structures. May be used effectively in planned unit developments, condominiums or other conditional use developments where streets with short branching configurations are proposed.
4.5.7
“Center,” “Mall” and “Court”
Designations reserved for high density commercial developments with multiple structures and occupancies that can be substituted for the street type designator in an assigned address. When commercial development type designators are used in the address format, the street name is also substituted with the development name.
4.6 Assignment of street names and numbers.
A street shall not be assigned both a name and a number. This is to avoid persons using both interchangeably with their official situs address. If a street is designated with an alphabetic name, only its intersection with other streets are assigned numbers as coordinates for the purpose of displaying them on intersection signs.
4.6.1 Streets which shall be assigned alphabetic names:
4.6.1.1
Streets that change direction at oblique angles to the countywide grid system axes.
4.6.1.2
Streets that are diagonal to the countywide grid system axes. Any street which has intersection coordinates that shift more than five numbers along its entire length constitutes a diagonal street.
4.6.1.3
Cul-de-sac streets which intersect at right angles to other roadways. "bubbles” or “pockets” (which are not true cul-de-sacs) with four or less lots shall be named and numbered sequentially along the principal street with which they are configured.
4.6.1.4
Circled or looped thorough-fares which return to them-selves. If frontage numbers to be assigned for addresses on buildings are all on the outside of the loop, or all on the inside of the circle, the street may be given a single name, otherwise, a break shall be made at a distinct point at the back of the loop and multiple names assigned. This is to avoid duplicate and parallel address ranges for the same street name.
4.6.1.5
Horseshoe shaped thorough-fares that are not in alignment with the countywide grid system shall be assigned at least two names with the breaks occurring at the most distinct bends on the street.
4.6.1.6
Curvilinear or meandering streets which have coordinate changes at their intersections. Frontage number ranges should never overlap if a street meanders, otherwise two or more names shall be assigned with a break at a distinct bend or intersection which will eliminate the duplication of numbers.
4.6.1.7
Dead end streets which are not considered intermittent or will not likely be extended.
4.6.1.8
Private streets which are proposed within private developments such as condominiums and planned unit developments shall be named.
4.6.1.9
Major collector streets and collector streets which follow Township-Range section lines or are parallel to the axes of the Countywide Grid System, and then change direction at oblique angles to the grid axes to which they are aligned
4.6.2 Streets which shall be assigned numbers:
4.6.2.1
Major collector streets or collector streets which are in continuous alignment with the Countywide Grid System axes or with Township-Range section lines, other than U.S. or Utah State Highways, shall be assigned street numbers.
4.6.2.2
Marginal access streets which parallel major collector streets and collector streets in alignment with the Countywide Grid System shall be assigned numbers.
4.6.2.3
When calculating street numbers and intersection coordinates, all numbers shall be measured to the centerline of the roadway (except in Salt Lake City) and must have the last digit of the number rounded up or down to end in either a “0” or a “5”.
4.6.4 Streets which may be assigned alphabetic names or numbers.
4.6.4.1
All streets which are not cul-de-sac streets, dead ends, or in private developments, and are aligned with the Countywide Grid System axes may be assigned an alphabetic street name or a street number, but not both.
4.6.4.2
Dead end streets which are “stub streets” planned for future connections, may be assigned a name or a number, providing continuity with the connecting street is maintained.
4.6.4.3
Assignment of street numbers should be encouraged over assigning alphabetic names to streets which are in alignment with the countywide grid system.
4.6.5 Intersection Signs.
4.6.5.1
Street name signs shall conform to the design specifications and in the number provided by the standards and regulations established by local governing entities in their jurisdictions. Uniformity in public street signs should be maintained.
4.6.5.2
Private rights-of way which have been assigned an alphabetic name and intersect with dedicated public streets shall be designated as a private street with a “blue” intersection sign conforming to the standard specifications mentioned above. Developers requesting standard street signs within their developments shall have them constructed with the “blue” designated color for private streets.
4.6.5.3
Signs constructed for alphabetic named streets shall display both the name, street type, and corresponding intersection coordinates.
5.0 Property Numbering

  5.1 General responsibility for property numbering.
The County Council and City Councils shall designate, within their jurisdictions and by ordinance, the public official who has responsibility to calculate and assign official location addresses on both public and private streets.
This includes all addresses for rights-of-way on recorded dedication plats, as well as existing rights-of way, both public and private, and those numbers depicting sub-parcel, sub-structure identification. Private engineers, developers or other individuals shall not be allowed to assign location addresses
5.1.1 Registered Certificates of Location (Situs) Address.

5.1.1.1
All legal situs addresses, both public and private, shall be documented and registered with a certified number by the County and by all municipal governments, in their respective jurisdictions, when improvements to real parcels within the County are proposed, or when it is necessary to change addresses to eliminate confusion.
5.1.1.2
Recorded plats with approved and certified address information displayed are considered official certificates of legal situs addresses for the lots and units platted thereon.
5.1.2 Private Numbering Systems.
No private numbering systems shall be approved. All public and private location addresses which are in use within the boundaries of the county shall have official approved situs addresses issued with frontage numbers which reference the Countywide Grid System except as follows:
5.1.2.1
The frontage numbering system applied in adjacent canyons with public rights-of-way. Such systems shall be required to convert to the Countywide Grid System at such time that they incorporate, become annexed, or petition the County to effect such an action.
5.1.2.2
Numbering systems which exist in rural areas of the county not yet absorbed into the major urban expansion. These areas must have their address systems converted to the Countywide Grid System at the time they incorporate, are annexed, or become absorbed into the major urban growth of the count.

5.1.3 Odd and Even Numbering.
The assignment of frontage numbers in legal situs addresses shall be measured and uniformly consecutive with even numbers on the right side of the street and odd numbers on the left side of the street looking away towards the east, west, north, or south from the junction of the baseline and meridian streets. Alternatively, even numbers shall always be on the right side of the street and odd numbers on the left in the direction of increasing frontage intervals.
5.1.4 Coordination of Frontage Numbers and Intersection Coordinates.
All streets shall have frontage numbers that conform sequentially to their assigned intersection coordinates.
5.1.5 Directional Determination.
On streets that are not aligned with any of the four compass directions, the direction assigned to the frontage numbers shall be from the compass direction which most nearly matches the bearing of the street.
5.1.6 Numerical Freedom.
Numerical freedom shall be utilized to make use of additional property numbers in the interval between frontage numbers, providing such numbers are in consecutive sequence and are whole integers; they shall not be issued as fractions of numbers (e.g. 59 1/2 E 3900 S).
5.1.7 Juxtaposition.
Frontage numbers should be comparable (but not duplicated) on parallel streets and should be in consecutive order. Frontage numbers which would be divisible by 100 should be adjusted two digits (i.e. 3800 S should be 3798 S or 3802 S) to avoid identifying them with street numbers.
  5.2 Methods of assigning property numbers.
5.2.1 Frontage Number Scales.
Because many numbering scales are used to calculate frontage numbers on the Countywide Grid System, the scale employed shall be indicated on all final plats. If a scale does not apply, a constant shall be used to determine the frontage numbers, which shall be indicated on the final plat.
5.2.2 Streets Changing Directions between Intersections.

5.2.2.1
Streets which change direction between intersections, either at an oblique angle or to another axis of the Countywide Grid System, must have the directional and the frontage number changed to match the new bearing direction of the street.
5.2.2.2
If the directional change of the street results in the duplication of frontage number ranges, it should be renamed at the point where it shifts direction or at the nearest intersection that will avoid the range duplication.
5.2.2.3
If a street changes direction and is contained wholly within a subdivision or area, the frontage numbers may continue sequentially as in one direction, but it is still necessary to assign the proper coordinates at all intersections.
5.2.3 Diagonal Streets.

5.2.3.1
Intersection numbers on diagonal cross streets shall be calculated to begin with the same number measured from the baseline or meridian streets according to the frontage number scale designated for that area; this will ensure that the frontage numbers are uniformly measured from one street to the next where they intersect the cross street.
5.2.3.2
When assigning frontage numbers to diagonal streets they must not be measured along the diagonal, instead, numbers along the diagonal shall be measured as true north-south and east-west distances from the dedicated reference streets to which the diagonal street intersects.
5.2.4 Numbering Corner Lots.
Proposed subdivision with corner lots should have frontage numbers calculated for both streets that the lot fronts upon and both frontage numbers placed on the final plats. Once the structure’s facing is identified, the correct frontage number can be selected and assigned.
5.2.5 Numbering Cul-De-Sac Streets.
Cul-de-sac streets shall be measured and positioned on the Countywide Grid System such that frontage numbers are even on one side to a point approximately half way to the top of the turnaround and then are odd numbers back along the opposite side of the cul-de-sac.
5.2.6 Numbering Private Streets and Rights-of-Way.

5.2.6.1
Structures and dwellings fronting on private rights-of-way shall be assigned number addresses, using numerical freedom, which have frontage numbers referencing the frontage interval of the public street to which the private right-of-way intersects.
5.2.6.2
If a private right-of-way has a requirement for frontage numbers exceeding the available numbers in the frontage interval on the public street with which it intersects, the private street shall be assigned a name and placed on the Countywide Grid System.
All structures and dwellings fronting upon the newly named private right-of-way shall be re-assigned legal situs addresses according to the standards set forth in this policy. This procedure may be done, without ordinance or petition, by the local government whose authority has been designated in that jurisdiction. A public hearing may be provided if an appeal is made by affected persons.
5.2.6.3
If a private right-of-way contains single family structures or other occupied structures which are numbered off the public street that the private right-of-way intersects, the residents may petition the county or city agency responsible for administering property to approve street name or numbering and place their private right-of-way on the Countywide Grid System.
5.2.7 Numbering Duplexes, Rear Houses, and Buildings on Interior Lots.
Where possible, numerical freedom in the interval between frontage numbers should be used for sub-parcel identification, instead of assigning fractions of numbers or the designation “front” or “rear,” to duplexes, rear houses and buildings on interior lots.
5.2.8 Numbering High Density Structures.

5.2.8.1
Condominiums and Planned Unit Developments with multiple levels should be numbered according to the standards set forth in this policy, unless the unit density dictates constraints, then the following shall apply as guidelines for assigning numbers:
5.2.8.1.1
Buildings with two or more levels above grade and internal stairwells should be addressed using the sub-structure suffix code for high rise structures.
5.2.8.1.2
Buildings with external stairwells should have each stairwell entrance assigned a unique frontage number if each entrance has units that are accessed solely through that stairwell. Assign each unit accessed by its entrance a unit number, indicating floor level, to be used as an address suffix (i.e. 239 E. Esker Ln. #10, #20, #30 – 1st, 2nd, & 3rd floors).
5.2.8.1.3
Sub-structure suffix numbers for units below grade should be designated with a letter indicating floor level below grade (e.g. -1st floor = A, -2nd floor = B, 3rd floor = C), followed with a unit number (e.g. #A 1).
5.2.8.1.4
Numbers are preferred over letters in designating units above grade.
5.2.8.2
Commercial strips should have each business unit assigned an address using a separate frontage number and the number or the alphabetic name for the street upon which the commercial structure fronts.
5.2.8.3
Commercial Malls, Centers, or Squares should have internal addressing which considers floor levels with a sub-structure suffix of three or more digits where the first digit represents the level above grade and the remaining digits represent the unit number.
Addresses for these commercial structures may substitute the street name in the address format with a project name and substitute the street type designator with appropriate abbreviation of a standard structure type (i.e. 6945 S. Union Park Cntr. #101 – which is the first unit on the first floor).
A single frontage number should be assigned for the entire commercial structures. Separate structures within a Mall or Center Complex may be assigned separate frontage numbers. Below grade levels should use a letter in the suffix.
5.2.8.4
High Rise Structures require a vertical sub-structure suffix to identify suites, rooms, premises, and occupancies or establishments that are accessible by the public via hallways and elevators.
These vertical addresses should consist of the frontage number or use the project name as a prefix in the address. Subsequently the address suffix should consist of a four digit number with the first two digits representing the floor number above grade and the remaining two digits being a sequential identifier for all rooms, suites, or dwelling units starting from the left of a major stairwell or elevator shaft. Below grade levels should use a letter in the suffix./
5.2.8.5
Industrial parks generally have lower density than most retail or other commercial structures and should be identified through the regular procedures of numbering private streets set forth in these regulations.
   5.3 Display of frontage numbers on buildings.
5.3.1

When a registered situs address has been designated by an authorized government agency, the owner or occupant or person in charge of the building or dwelling shall place, within a period of 10 days, a painted, carved or cast duplication of the frontage number in a conspicuous position upon the front of such dwelling or building.

The number should be mounted in a permanent, stationary and durable manner, unobstructed at all times by vegetation, screens, or anything that would tend to hide or obscure the number. If the building is not visible from the street, a lawn stake or similar permanent fixture with the number shall be placed in a conspicuous place near the road or the number may be placed permanently on a curbside postal mail box.
5.3.2

Numbers which are mounted on dwellings and buildings shall be plain block numerals, not script or written numbers, and conform to the following minimum dimensions based upon the setback distance of the building from the street upon which the number must be viewed:

Setback Distance Height of Number
0 - 150 feet 3 inches
151 - 200 feet 5 inches
201 - 300 feet 8 inches
301 feet or greater 12 inches
5.3.3
The owner, occupant or person in charge of the building, upon affixing any new number, shall remove any different number which might be mistaken for or confused with the number assigned.

5.3.4
Each principal building shall display the assigned number on the side of the building where the front entrance is located. If a principal building is occupied by more than one business or family dwelling unit, any separate entrance to an occupied sub-structure unit shall display a separate number.

5.3.5
No building permit shall be issued for any principal building unit until the owner or developer has procured an official address for the premises from the government addressing agency in that jurisdiction. Final approval for the certificate of occupancy of any principal building shall not be issued until permanent and proper numbers have been displayed as provided above.
6.0 Property Identification Requirements For Recorded Plats

All official subdivision, condominium, or conditional use plats and plans shall contain the following property identification information before their final approval. County or city municipal planning commissions shall not act upon any plat or plans unless the addressing agency has reviewed addressing for duplication and has approved the street names. The local municipal planning agencies should insure that all plans contain situs address information that has been properly approved and identified on the plats and plans along with other requirement of these regulations.

6.1 Identification of existing subdivisions.
All existing subdivisions and conditional use developments which adjoin the proposed improvements or are within two hundred feet must be shown on the plats to include their lots and lot numbers.

All existing developments should be delineated using dotted or short dashed lines to distinguish them from the proposed improvements.
  6.2 Identification of existing streets.
6.2.1
Plats or plans shall show the location of all existing streets within two hundred feet of the proposed subdivision and all prior platted streets or other public or private ways which have been named or dedicated for address numbering.

6.2.2
All existing streets should be delineated using short dashed lines to distinguish them from the proposed improvements.

6.2.3
All existing intersections of streets within two hundred feet of the proposed improvements shall have their location coordinates identified on the plat or plans.
  6.3 Identification of proposed streets.
6.3.1
When street numbers are assigned to proposed streets they shall be shown on all recorded plats within the designed roadway, to include the corresponding directional spelled (not abbreviated) and with the street type “Street” (not abbreviated – e.g. 1220 South Street).

6.3.2
When alphabetic street names are assigned to proposed streets, the name and the street type should be displayed in the designed roadway with the name and type spelled (not abbreviated – e.g. Yellow Brick Road).

6.3.3
Countywide grid system coordinates shall be shown on plats at all intersections and shall not display a street type (e.g. 1220 S).

6.3.4
All proposed streets shall be assigned either an alphabetic name or a street number as described in section 4.0.
  6.4 Identification of new and existing frontage numbers.
6.4.1
The plat or plans shall show all frontage numbers which have been measured and assigned, to include those which are on private ways, deep lots and conditional use developments immediately adjacent to the proposed improvements.

6.4.2
Frontage numbers with their corresponding directional shall be shown within each proposed lot or contained within a lot table on the plat.

6.4.3
Number scales or constants used for determining frontage numbers shall be indicated on the plats and plans within the stamp area of the “PROJECT STREET NAMES APPROVED” stamp.

6.4.4
If existing frontage numbers are not sequential or are out of alignment with those proposed, then provisions must be made to adjust or change either the existing numbers, the proposed numbers, or both before final approval of the plats or plans may be given.

6.4.5
The signature or initials of the agency staff member who coordinated the street name and addressing information on the plat shall also be placed within the stamp area.
Addressing Standards were approved and adopted on July 14, 2009.

Setback Distance	Height of Number
0 - 150 feet	3 inches
151 - 200 feet	5 inches
201 - 300 feet	8 inches
301 feet or greater	12 inches

Read the full Salt Lake County Addressing Ordinance.

Addressing Standards:

1.0 Purpose

2.0 Definitions

The following terms used in this policy shall have the meanings set forth:

Address (Situs Address)

Address Certificate

Address Fromat

Baseline Street

Center

Collector Street

Common Name Duplication

Continuity

Countywide Grid System

Critical Duplications

Cul-de-sac Street

Dead End Street

Diagonal Street

Directional

Final Plat

Frontage Number

Frontage Scales

Highway

Intermittent Street Name Duplications

Intersection

Mall

Major Street or Major Collector Street

Marginal Access Street

Meridian Street

Minor Street

Numerical Freedom

Numerical Street Name

Official (Street) Map

Parcel of Land

Phonetic Name Duplication

Private Rights-of-way

Public Rights-of-way

Square

Subdivision

Subsidiary Street Name Duplication

Sub-parcel Identification

Sub-structure Suffix

Street

Street Name

Street Number

Street Type

3.0 Address Standardization

3.1 Address components.

3.1.1 Frontage number

3.1.2 Directional

3.1.3 Street name

3.1.3.1 Alphabetic names

3.1.3.2 Street numbers

3.1.4 Street type

3.1.4. Standard building types may be substituted for street types in the address format as follows:

3.1.5 Sub-structure suffix

3.1.5.1

3.2 Address formats.

3.2.1 Sample right/wrong address formats:

4.0 Name Approval

4.1 Subdivision name and conditional use name approval.

4.2 Street name approval regulations and standards.

4.2.1 Approval of street names new developments.

4.2.2 Approval of street names existing developments.

4.2.2.1

4.2.2.2

4.3 Street name duplications.

4.3.1 Critical Duplications are prohibited.

4.3.2 Common name duplications are prohibited.

4.3.3 Phonetic Name Duplications are prohibited.

4.3.4

4.3.5 Criteria for eliminating name duplications.

4.3.5.1

4.3.5.2

4.3.5.3

4.3.6 Intermittent street name duplications.

4.3.6.1

4.3.6.2

4.3.6.3

4.3.6.4