Sonora, Cal., Code of Ordinances § 16.06 § 16.06.040

A. A planned development permit, issued under Chapter 17.31 of this code, shall be required prior to the conversion of apartments to community housing units, and prior to the approval of any tentative or parcel map in the furtherance of same, in any zoning district.
B. When the situation of an apartment vacancy surplus exists as of the most recent determination, pursuant to Section 16.06.030 , an application for approval of a planned development permit for conversion of apartments to community housing units may be filed with the city if the number of lots, parcels, units or rights of exclusive occupancy proposed does not exceed the apartment vacancy surplus.
C. In addition to the other requirements of this title, such applications shall be accompanied by the following:
1. A tentative subdivision map showing the boundary of the property, the location of all structures, common and private spaces, parking and access, accessory storage areas, trash areas, laundry facilities, utility connections, and the means by which the dwelling units will be divided;
2. Floor plans and elevations indicating the square footage and number of bedrooms per unit, height, architectural features, and materials of construction;
3. Name, address, age and length of occupancy of every tenant and occupant, including children, in the project on the date of application;
4. Current rents for each unit, along with the date, and amount of prior rent increases for the preceding three-year period;
5. The approximate proposed sales price of each unit, and the pro forma budget proposed for submission to the California Real Estate Commissioner or similar estimate of project annual operating and maintenance fees and assessments;
6. All organizational documents:
a. The declaration of restrictions shall prohibit the unenclosed storage of any vehicle intended for recreation purposes, including land conveyances, vessels and aircraft, but not including attached camper bodies and motorhomes not exceeding eighteen feet in length, unless approved storage areas are provided,
b. The declaration of restrictions shall provide for approval by the city prior to any future modification of site plans, architectural elevations, exterior materials and colors or of any of the organizational documents,
c. The declaration of restrictions shall require the designation of a project manager residing in the project or maintaining an office on-site to represent the association with full powers to enforce the various provisions of such documents;
7. A property report prepared by a registered civil engineer, architect, or qualified licensed contractor describing the physical condition and estimated remaining useful life of each of the various elements of the project proposed for conversion, including the following: building foundations, roofs, walls, sound insulation, mechanical, electrical and plumbing systems, on-site utilities, heating and air conditioning systems, and fire protection systems, together with recommendations relating thereto in order to assure their continued useful life for a minimum of five years. The report shall also indicate any deviation from the standards of this code, defective or unsafe elements, and proposed corrective measures;
8. A structural pest-control report prepared within sixty days of the date of application by a licensed structural pest-control operator, pursuant to Section 8516 et seq. of the California Business and Professions Code, or successor section;
9. A building history report, including the date of construction of all elements of the project and a statement regarding the current ownership of all improvements and underlying land;
10. A statement of any proposed repairs or improvements proposed to be completed prior to the sale of units, along with a time schedule therefor;
11. A soils report, if not previously prepared, as required by the provisions of the Subdivision Map Act;
12. A copy of the application to the department of real estate of the state for issuance of a final public report for the proposed conversion, including all attachments and exhibits thereto required by the department, pursuant to Section 11011 of the California Business and Professions Code, or successor section;
13. An acoustical report prepared by a qualified acoustical engineer evaluating the noise-attenuation characteristics of existing walls and floor-ceiling assemblies, and the measures required for the building or buildings to meet the standards of this code;
14. Any other information which, in the opinion of the building official, will assist in determining whether the proposed project will be consistent with the purposes of this title;
15. The building official may waive the submission of certain of the above factual items if it is demonstrated that such information is not available and cannot be obtained.