Earlier editions: 2026-09
Title 12 — STREETS, SIDEWALKS AND PUBLIC PROPERTY›Chapter 12.04 — STREETS AND SIDEWALKS
Diamond Bar Municipal Code Div. 3 House Numbering
Diamond Bar Municipal Code · 2026-10 edition · updated 2026-10-04 · Diamond Bar
Cite as: Diamond Bar Municipal Code Division 3 · Text as of 2026-10-04
Footnotes:
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Cross reference— Building code and standards, § 15.00.310 et seq.
Sec. 12.04.2610. - Short title.¶
This division shall be known as and may be cited as the "house numbering ordinance."
(Ord. No. 14(1989), § 2(16.70.010), 6-27-89)
Sec. 12.04.2620. - Construction of division provisions.¶
Unless the provision or the context otherwise requires, the general provisions, rules of construction, and definitions in the sections of this division shall govern the construction of this division.
(Ord. No. 14(1989), § 2(16.70.020), 6-27-89)
Sec. 12.04.2630. - Definitions.¶
The following words, terms and phrases, when used in this division, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning:
Mobilehome means a vehicle designed and equipped for human habitation, and for being drawn by a motor vehicle.
Mobilehome park means any area or tract of land where:
(1) One or more mobilehome lots are rented or leased or held out for rent or lease to accommodate mobilehomes used for human habitation; or
(2) Two or more mobilehome lots are in the lawful possession of separate persons and are used by such persons to accommodate mobilehomes used for human habitation.
Road means both a city highway and a private street.
(Ord. No. 14(1989), § 2(16.70.030), 6-27-89)
Cross reference— Definitions generally, § 1.00.070.
Sec. 12.04.2640. - Districts established; city engineer authority.¶
The city engineer shall divide the city into one or more districts in order that he may, whenever requested to do so by the council, establish numbers to be allotted along any road in any part of the city.
(Ord. No. 14(1989), § 2(16.70.050), 6-27-89)
Sec. 12.04.2650. - House numbers; establishment.¶
The city engineer, whenever so requested by the council, shall establish the house numbers along any road in the city, and the numbers so established, when adopted and approved by the council, shall be the official numbers for such road.
(Ord. No. 14(1989), § 2(16.70.060), 6-27-89)
Sec. 12.04.2660. - Notice of numbers assigned.¶
(a) The city engineer shall notify all owners of property or persons in possession of property along any road upon which official numbers have been established pursuant to sections 12.04.2640 and 12.04.2650 of the numbers so assigned.
(b) If the city engineer finds that no number has been affixed to any mobilehome in a mobilehome park for which a number has been assigned by an approved plan, or that the number affixed is not the number so assigned, he shall so notify the occupant of such mobilehome of the number assigned thereto.
(Ord. No. 14(1989), § 2(16.70.070), 6-27-89)
Sec. 12.04.2670. - Placement of numbers by owners or occupants.¶
Within ten days after the owner or occupant of any property along a road for which official numbers have been assigned or the occupant of any mobilehome for which a number has been assigned has been notified, as required by this division, of the number so assigned, he shall:
(1) Remove any existing number which is not the number assigned; and
(2) Place the number assigned, in digits not less than three inches in height, upon the property, residence, structure or mobilehome in such a position as to be plainly visible from the road or accessway.
(Ord. No. 14(1989), § 2(16.70.080), 6-27-89)
Sec. 12.04.2680. - Apartment houses; posting of dwelling unit diagram.¶
The owner or proprietor of an apartment house consisting of six or more dwelling units shall post at or near the primary entrance to the building or buildings a brief descriptive diagram which clearly indicates the numerical, alphabetical or identification pattern or layout, showing the location of each dwelling unit, including floor levels and access patterns.
(Ord. No. 14(1989), § 2(16.70.090), 6-27-89)
Sec. 12.04.2690. - Mobilehome parks.¶
(a) Plan; filing requirements. Not less than 30 days after the establishment of a mobilehome park, the owner or proprietor of a mobilehome park shall file with the city engineer a plan, which may be a rough plan not drawn to scale, showing:
(1) The mobilehome lots, including dimensions thereof;
(2) The accessways thereto, including dimensions, angles and radii required to reconstruct the configuration of the accessway;
(3) The names or numbers of the accessways; and
(4) The number assigned to each mobilehome lot.
(b) Numbering system on accessways. On each accessway odd numbers in consecutive order shall be assigned on one side and even numbers in consecutive order shall be assigned on the other side.
(c) Examination of plan by city engineer. Upon receipt of the plan provided for by this division, the city engineer shall examine the plan and determine whether or not the proposed numbering of mobilehome lots will facilitate the finding of the occupants of the mobilehomes parked thereon, and whether the names of the accessways will duplicate the names of nearby roads or other accessways to such an extent as to cause confusion. He may make such changes in the plan as he finds necessary in order that the location of occupants of the mobilehome park may be ascertained. He shall return the plan as submitted or as amended by him, as the case may be, showing his approval of the plan to the owner or proprietor of the mobilehome park.
(d) Placement of numbers; compliance time limit. Within ten days after receiving the approved plan from the city engineer, the owner or proprietor of the mobilehome park shall post legible signs in letters or figures not less than three inches in height at the ends of, and at each intersection of, the accessways, showing the names or numbers thereof, and either place the number assigned to each mobilehome in such a position on the mobilehome to be plainly visible from the accessway, such number to be not less than three inches in height, or notify, in writing, the occupant of each mobilehome to do so.
(e) Directory and other signs required. The owner or proprietor of a mobilehome park shall:
(1) Post at the entrance thereof a central directory which shall show the layout of the accessways and the numbering system of the mobilehome park; and
(2) Affix on the mobilehome, house, or other structure occupied by the manager of the mobilehome park, in such a position as to be clearly visible from the accessway, a sign in letters not less than three inches in height, reading "Office," "Manager," or some other word indicating the same.
(Ord. No. 14(1989), § 2(16.70.100—16.70.140), 6-27-89)
Sec. 12.04.2700. - Penalty for violation of division.¶
Violation of this division is an infraction punishable as provided in section 1.04.020.
(Ord. No. 14(1989), § 2(16.70.150), 6-27-89)
Secs. 12.04.2710—12.04.2800. - Reserved.¶
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