Contra Costa County Municipal Code § 84-46.1702 General

All land within an administrative office district may be used for any of the following uses, under the following regulations set forth in this chapter.

(Ord. 1487: prior code § 8158 (part): Ord. 1050).

Article 84-46.4. Uses

Uses permitted in this district shall be as follows:

(1) Offices of an administrative, executive, professional, editorial, governmental or similar nature if no merchandise is handled for sale and no merchandising services are rendered except those incidental or accessory to the principal use;

(2) Research institutes and laboratories devoted to experimental study such as testing and analyzing. To insure that any testing and analyzing activities are not objectionable because of noise, dust, fumes, smoke, light, odor or air pollution, a land use permit shall be secured from the planning commission for any such use. Manufacturing shall not be permitted;

(3) Professional offices and laboratories such as medical-dental offices or the offices of lawyers, engineers or architects, if there are no retail sales. Prescription pharmacies but not drugstores are allowed in connection with medical-dental offices.

(Ord. 1487: prior code § 8158(a): Ord. 1050).

In the A-O district the following uses are permitted upon the issuance of a land use permit:

(1) Hospitals, eleemosynary and philanthropic institutions and convalescent homes.

(Ord. 83-24§ 1).

Article 84-46.6. Lots

No building or structure shall be erected or placed on a lot having less than five acres.

(Ord. 75-1 § 1: § 84-46.602[l]: prior code § 8158(b): Ords. 1050, 1004).

No building or structure shall be erected or placed on a lot having less than three hundred fifty feet in average width.

(Ord. 75-1 § 1: § 84-46.602[2]: prior code § 8158(b): Ords. 1050, 1004).

No building or structure shall be erected or placed on a lot having less than four hundred feet in average depth.

(Ord. 75-1 § 1: § 84-46.602[3]: prior code § 8158(b): Ords. 1050, 1004).

Not more than twenty-five percent of any lot's area shall be covered by buildings or structures.

(Ord. 75-1 § 1: § 84-46.604: prior code § 8158(f): Ords. 1050, 1004).

Article 84-46.8. Building Height

No building or structure or part of it hereafter erected or moved on a lot or building site in this district shall exceed thirty-five feet above the average finished ground level at the center of all walls of the building.

(Ord. 75-1 § 2: prior code § 8158(c): Ords. 1050, 1004).

Article 84-46.10. Yards

There shall be a minimum side yard width of at least fifty feet on each side.

(Ord. 75-1 § 3: § 84-46.1002: prior code § 8158(d): Ords. 1050, 1004).

There shall be a minimum rear yard width of at least fifty feet.

(Ord. 75-1 § 3: § 84-46.1002: prior code § 8158(d): Ords. 1050, 1004).

Every building or structure erected in this district shall be at least seventy-five feet from the boundary line of any public road or highway.

(Ord. 75-1 § 3: prior code § 8158(e): Ords. 1050, 1004).

Article 84-46.12. Off-Street Parking

One parking space of adequate size, shape and location for one passenger automobile is required for every two hundred square feet of floor area.

(Ord. 75-1 § 4: prior code § 8158(g)(2): Ords. 1050, 1004).

Article 84-46.14. Signs

One sign having a maximum size of thirty-five square feet shall be permitted. No sign shall rotate, flash or animate. No sign shall exceed the height of the roof eave line or twenty feet, whichever is lower. No sign shall face a residential land use district which may be abutting the subject lot.

(Ord. 75-1 § 5: prior code § 8158(g)(2): Ords. 1050, 1004).

Article 84-46.16. Development Plans

No development is lawful in an A-O district until a development plan for it has been submitted to and approved by the zoning administrator.

(Ord. 75-1 § 6: § 84-46.1602: prior code § 8158(g)(3): Ords. 1050, 1004).

All applications for development plan approval shall include scale drawings indicating the following:

(1) Topography;

(2) A boundary survey of the site;

(3) All existing and proposed structures, and the height of each structure;

(4) Planting and landscaping areas;

(5) Automobile parking areas;

(6) Vehicular and pedestrian ways, with grades, widths and type of proposed improvements;

(7) Ingress and egress points for the site;

(8) Existing and proposed utilities;

(9) Recreational facilities, if any;

(10) Surface drainage conditions and outlets;

(11) Building elevations indicating architectural type;

(12) Additional information as may be required by the zoning administrator including a statement of how the proposed plan is consistent with, and will further the goals and objectives of the general plan including, but not limited to, its community facilities element.

(Ords. 85-56 § 5, 75-1 § 6: prior code § 8158(g)(3): Ords. 1050, 1004).

(a) Review. The zoning administrator shall review development plan applications, for approval, modification or denial, in public hearing pursuant to and otherwise regulated by the land use permit provisions of Chapter 26.2.

(b) Approval. In approving the application, the zoning administrator shall find that it is consistent with the purpose of this district and that it is compatible with other uses in the vicinity, whether inside or outside the district.

(c) Changes. When any plan has been approved by the zoning administrator, it shall not thereafter be changed except with the zoning administrator's approval after review, for which the zoning administrator may schedule a public hearing.

(d) Conditions. The zoning administrator may impose reasonable conditions and limitations, in addition to the requirements in this chapter, to carry out the purpose of this district.

(Ord. No. 2024-23, § III(Exh. A), 12-3-24; Ord. 75-1 § 6: § 84-46.1602: prior code § 8158(g)(3): Ords. 1050, 1004 §§ 1, 2).

Article 84-46.17. Open Area

At least twenty-five percent of every lot's area shall not be occupied by buildings, structures or pavement, but shall be landscaped as provided in this article. At least seventy-five percent of the twenty-five percent open area required by this section (at least eighteen and seventy-five one-hundredths percent of total area of every lot) shall be planted and maintained with growing plants.

(Ord. 75-1 § 7: §§ 84-46.1002, 84-46.1202: prior code § 8158(d), (g)(1): Ords. 1050, 1004).

Article 84-46.18. Variances

Variances from any of the regulations in Articles 84-46.6 through 84-46.14 and 84-46.17 of this chapter may be granted as provided in Section 26-2.1204 and related procedural provisions.

(Ord. 75-1 § 8: prior code § 8158(h): Ord. 1487).