In this regulation, definitions stated in Anchorage Municipal Code title 21 and regulation R21.80 of this Code of Regulations shall apply. The following definitions shall also apply to this regulation:
"As-built survey"
means an official surveyed plan that delineates the exact location of a building or buildings on the property.
"Base maps"
means the standard Anchorage one inch equals 100 feet (quarter section) scale right-of-way maps.
"Street"
means any dedicated right-of-way.
(AR No. 81-284)
Street addresses within Anchorage shall be assigned in accordance with a standard grid system, whereby the following rules apply:
A. 
The grid system shall be based upon equidistant perpendicular and parallel lines, with A Street designated as the east-west axis and First Avenue designated as the north-south axis (see figure 1).
B. 
No more than 100 addresses shall be assigned per each standard 350-foot "block interval" of street frontage.
C. 
All official addresses shall be indicated in ink on the addressing base maps located in the planning department.
(AR No. 81-284)
A. 
All numbers will increase heading outwards from the intersection of A Street and First Avenue (see figure 2).
B. 
The north and east sides of perpendicular and parallel streets shall be assigned odd numbers, and the south and west sides shall be assigned even numbers (see figure 3).
(AR No. 81-284)
A. 
Diagonal streets. Addresses on a diagonal street shall be assigned on the north-south or east-west axis according to the predominant direction of the street from the grid baseline. A perfect diagonal street shall be arbitrarily assigned on either axis (see figure 4).
B. 
Curvilinear streets. Numbers on a curvilinear street shall be assigned from the axis that is most nearly at a right angle to the predominant direction of the thoroughfare (see figure 5).
C. 
Culs-de-sac/circles. Numbers shall be assigned odd or even on either side of an imaginary line bisecting the cul-de-sac/circle (see figure 6).
D. 
Loops. Addresses shall be assigned on the north-south side or east-west axis, according to the predominant direction from the grid baseline (see figure 7).
(AR No. 81-284)
A. 
Buildings shall be addressed off the street the main front entrance faces, with the following exceptions:
1. 
A building shall be assigned an address off the street it accesses from if the building front does not face, or is not in close proximity to, a dedicated right-of-way.
2. 
Corner lot buildings. Corner lots having dual entrances shall be assigned an address based upon the general site layout.
B. 
Unless otherwise stated in these regulations, all buildings or groups of buildings or dwelling units containing more than one business or dwelling unit shall be assigned a single address per building. Each property owner shall be responsible for assigning individual address suffixes (alphabetical or alphanumeric unit numbers) to the business establishments or dwelling units within the building.
C. 
Residential buildings.
1. 
Single-family dwellings shall be assigned one address number.
2. 
Duplexes, condominiums, townhouses and multifamily dwellings shall be assigned one number per building unless each dwelling unit in the building has a separate outside, street-level entrance fronting on the street, in which case the dwelling units may be assigned individual addresses.
3. 
Mobile home parks. Each space within a mobile home park shall be assigned a single address.
D. 
Business/industrial buildings.
1. 
Buildings adjoining each other and having separate entrances facing the street shall be assigned an individual address per building.
2. 
Individual buildings containing more than one outside entrance facing the street may be assigned one address per entrance at the discretion of the planning department, in the following situations:
a. 
The entrance serves a single business which cannot be accessed from the other businesses or other street fronting entrances in the building.
b. 
The entrance serves several suites of businesses which cannot be accessed from other street-fronting entrances in the building.
3. 
Auxiliary buildings or commercial and industrial facilities shall not be assigned a separate address, but the main building (where mail is received and business is transacted) would receive a building number.
4. 
Business parks. Individual buildings in a business park shall be assigned separate addresses for each business located within that building provided that each business has a separate, unique outside entrance.
5. 
Shopping centers/malls. Detached shopping centers/malls situated on the same property and having internal access to all businesses shall be assigned a single address.
6. 
Business condominiums shall be assigned a single address per building.
(AR No. 81-284)
Premises identification.
A. 
It is the responsibility of property owners to affix approved numbers on all their buildings in such a position as to be plainly visible and legible from the street fronting or orienting the property. Said numbers shall contrast with their background.
B. 
On a corner lot, the business or dwelling number shall face the street named in the address.
C. 
Businesses or dwellings situated a considerable distance from their street frontage or obscured by trees, shrubs, etc., shall have the structure number posted on a plainly visible human-made or natural feature within at least 50 feet of the street named in the address.
(AR No. 81-284)
A. 
An assigned address may be changed by the department of public works if unusual circumstances warrant such a change. Situations which may contribute toward the determination that a change is needed include:
1. 
Assigned number is in conflict with standard grid system (i.e., number(s) out of sequence, odd or even numbers on wrong side of street, etc.).
2. 
Street designation has been changed.
3. 
Duplicate street names exist.
4. 
Street alignment has been changed.
5. 
Principal entrance does not face the street named in the address.
B. 
Notification of any address change shall be made, by letter, to the property owner, with copies to the post office, utilities and public safety agencies servicing that property.
(AR No. 81-284; AR No. 84-280)
A. 
Preliminary addresses shall be assigned by the department of public works to all parcels within the municipality not later than December 31, 1983. These addresses will be systematically assigned in accordance with these regulations in the following phased sequence: (1) Anchorage Bowl area; (2) Eagle River-Chugiak-Eklutna; (3) Turnagain Arm. Preliminary addresses are primarily for internal municipal use, may be changed when permanent addresses are assigned, and should not be used on official documents. Preliminary addresses will not be assigned upon request and will not be made public until each geographical phase is totally completed.
B. 
Permanent street addresses shall be assigned in writing by the department of public works only to officially subdivided parcels, which access dedicated rights-of-way. Assignment of addresses shall be made in the following situations and timeframes:
1. 
At the department of public works' discretion, after the recording of a final plat, with written notification of assigned addresses to be sent to the property owner as soon as possible.
2. 
Residential street addresses shall normally be assigned, and written notification postmarked, within two working days of a request by the property owner.
3. 
Addresses for a subdivision containing ten or more lots, and addresses for condominiums, townhouses, apartment buildings, and planned unit developments shall be assigned and written notification postmarked within five working days of the owner's request and receipt of an as-built survey of the property.
4. 
All business addresses shall be assigned, and written notification postmarked within five working days of receipt by the department of public works of the as-built survey of the property.
(AR No. 81-284; AR No. 84-280)
Any violation of this regulation may be remedied in the manner provided by Anchorage Municipal Code section 21.25.030 and other provisions of law.
(AR No. 81-284)