(a) 
All numbering of new construction shall, as near as practical, conform to the following plan:
(1) 
The center of the grid reference point will be the intersection of Murphy Road and FM 544. Grid lines will be drawn every 800 feet in each direction and the first grid will be designated as the 100 block, the second grid the 200 block, and the like.
(2) 
Structures located on the north side and the west side of a street will be given odd numbers; those located on the south side and east side will be given even numbers.
(3) 
Diagonal streets shall be numbered in the east-west or north-south series in accordance with the dominant direction of the street.
(4) 
Cul-de-sacs which have two or more lots directly facing each other, and the lot fronts parallel to each other, will be given street names. Shorter cul-de-sacs where all lots front the circle may or may not be named. If not named, they will be assigned numbers from the series used on the street [from] which the cul-de-sac runs.
(5) 
In the case of group housing projects with private drives and interior parking bays, a number will be assigned to the driveway. This will become the street address for all units on the drive, parking bay or court. Separate units or apartments will then carry the street number as well as apartment number.
(b) 
All house and building numbers will be placed immediately above, on, or at the side of the proper door of each building and shall be of such size and color as to be seen plainly from the street. In cases where houses are located sufficiently far from the street as to make it impracticable to place a number thereon which would be visible from the street, the number will be placed near the walk or driveway or upon a gate post, fence, tree, post or other appropriate place so as to be easily discernible from the street. The numbers should blend architecturally in size and design with the structure as nearly as practicable. The placement of these numbers is in addition to the numbers that should appear on mailboxes when it is appropriate.
(1984 Code, sec. 3-3-2A; 1993 Code, sec. 96.01; 2006 Code, sec. 66-21; Ordinance 150, sec. 1, adopted 11/17/80)
When a final plat is filed, and prior to approval, the city manager or his designee will review the plat to see that all streets are properly named. There will not be any duplication of street names within the city or the Plano postal service area. Numbers will be assigned to each individual property or front footage.
(1984 Code, sec. 3-3-2B; 1993 Code, sec. 96.02; 2006 Code, sec. 66-22; Ordinance 150, sec. 2, adopted 11/17/80; Ordinance adopting 2015 Code)
It is recognized that the numbering plan contained herein should be flexible to allow adjustment in respect to grid lines and street intersections. Therefore, actual street numbering shall not be required to be placed upon the subdivision plat to be filed of record but will be kept on a separate numbering plat or master grid map as a part of the official records of the city.
(1984 Code, sec. 3-3-2C; 1993 Code, sec. 96.03; 2006 Code, sec. 66-23; Ordinance 150, sec. 3, adopted 11/17/80)