On October 14 2013, the City of Oakley’s new regulations pertaining to residential accessory structures went into effect. The new regulations allow most residential properties to include a larger total square footage of detached accessory structures (i.e. sheds, detached patio covers, gazebos, etc.), than previously allowed, by allowing a maximum lot coverage of 40% for all structures on the lot, or a maximum of 500 square feet of accessory structures, whichever results in a greater allowance of accessory structure square footage. As an example, a property of ¼‐acre or approximately 10,890 square feet could have accessory structures, plus the main house, total 40% of the lot, or 4,356 square feet. One acre properties would be allowed up to 17,424 square feet of coverage over the entire lot (combination of all structures).
Most accessory structures require building permits and are subject to zoning regulations, so please contact the City of Oakley Building and Planning Departments prior to purchasing or installing your structure. If you have questions on the new regulations the Oakley Planning Department can be reached at (925) 625‐7000.