Accessory Structures in Hayward, CA (2026)
5 verified accessory structures rules for Hayward, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Hayward repealed its own accessory dwelling unit design and development standards in 2024 and now regulates ADUs entirely by reference to state law. Its zoning table lists ADUs as a permitted secondary use in every district where the primary use is residential.
Hayward ADU Rules Defer to State Law
Few RestrictionsHayward, CA, Municipal Code § 10-1.2741
This Section provides reference to the regulations for Accessory Dwelling Units provided in Government Code Sections 65852.2 and 65852.22, as amended from time to time. Accessory dwellings units provide housing opportunities in a flexible manner to address the unmet demand for affordable housing and achieve the goals, objectives, and policies of the Housing Element and General Plan to provide a...
ADU Impact Fees
Hayward's Traffic Impact Fee, otherwise charged on every new dwelling unit, does not apply to accessory dwelling units. Section 10-30.15(h) exempts ADUs outright, so homeowners adding a backyard unit skip the citywide traffic mitigation charge that new houses and condos pay.
ADU Impact Fee Exemption in Hayward
Few RestrictionsHayward, CA, Municipal Code Sec. 10-30.15(h) (Exemption from Requirements, Traffic Impact Fee)
The following types of development projects(s) shall be exempt from the provisions of this article: ... (h)No fee is applicable for remodeling, adding to an existing unit, or adding an accessory dwelling unit (ADU) for residential development.
ADU Owner Occupancy
Hayward does not require owner-occupancy to build an accessory dwelling unit; that field belongs to state law. But under the city's Rent Stabilization Ordinance, an ADU rental unit keeps its exemption from the rent-increase cap only if the primary residence is occupied by the property owner.
Hayward ADU Owner-Occupancy Rule
Light RestrictionsHayward, CA Municipal Code § 12-1.04(e)(3)
Notwithstanding the foregoing, the following residential Rental Units are not deemed Covered Rental Units for the purpose of this Ordinance:...(3)Rental Units that are lawful and in compliance with the Hayward Municipal Code Section 10-1.2740, et seq. (Accessory Dwelling Units), if the primary residence is occupied by the Property owner.
Shed & Carport Rules
Hayward caps detached sheds, garages and similar accessory buildings at 50 percent of the primary home's ground floor area and sets sliding setbacks based on size. Sec. 10-1.204(a) of the Zoning Ordinance governs every residential district: RNP, RL, RM and RH.
Hayward Shed and Accessory Building Rules
Some RestrictionsHayward, CA Municipal Code Sec. 10-1.204(a)
a.Accessory Buildings, Detached. Detached accessory buildings, including but not limited to carports, garages, greenhouses, freestanding patio covers, and sheds shall meet the following criteria. Does not include Accessory Dwelling Unit(s) - see Section 10-1.2740.(1)Metal or plywood structures shall be painted.(2)Shall not be located in a required front yard or side street yard.(3)Shall not be ...
Garage Conversions
Hayward's Zoning Ordinance flatly bars converting a garage into living space: Section 10-1.3370(c) prohibits accepting an application or granting a variance for any physical change that turns a garage into anything other than vehicle parking. The only exception is a Planning Director waiver for a physically disabled resident who has no other reasonable access to the dwelling.
Hayward Garage Conversion Ban
Heavy RestrictionsHayward, CA, Municipal Code Sec. 10-1.3370(c)
c.In no case may an application be accepted and/or a variance be granted to allow physical changes in a garage which would result in the conversion of a garage to purposes other than for parking vehicles. A waiver may be made by the Planning Director for a physically handicapped person who resides in the single-family home when the property owner can establish that the terrain is such that ther...
Looking for Alameda County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hayward city rules.
Accessory Structures in Alameda County →