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A building permit is not required for the following:
• One-story detached accessory buildings used as a tool and storage sheds, playhouses, and similar uses, provided the floor area does not exceed 120 square feet (11.15 square meters). • Fences not over six feet (1829 mm) high. • Retaining walls which are not over three feet in height measured from the top of the footing to top of the wall, unless supporting a surcharge or ground slope exceeding 1:2 or impounding class I, II, or III-a liquids (Contra Costa County Code, Title 7, Article 74-3.106.2). • Painting, papering, and similar finish work. • Platforms, walks and driveways not more than 30 inches (762 mm) above grade and not over any basement or story below.
See Section 106.2 of the California Building Code for further exemptions.
Unless otherwise exempted, separate plumbing, electrical, and mechanical permits will be required for the above exempted items.
Exemption from the permit requirements shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of any County code or ordinance.
Please call us if you have any questions (925) 646-4108. Building Permit Applications
Please call us for more information at (925) 646-4108. Permit by Fax/Mail Applications
Some projects require approval either by the County Planning Division or City Planning Department and other agencies before the Building Inspection Division can proceed with the plan review. Then depending on the scope of the project, it may take anywhere from one day to several weeks depending on the amount of structural and non-structural review required.
Minor projects that are usually issued either that day or the next day are:
• Minor in-kind repairs due to damage caused by fire, termites, or deterioration • Minor interior alterations with no structural work • Plumbing, mechanical, or electrical repairs, change-outs, or alterations • Mobile homes
Major Projects that may take up to several weeks to review are:
• Changes in building use or occupancy • Major additions (greater than 50 percent of the existing structure) • Major structural work (seismic upgrades, major repairs, etc.) • Major tenant improvements • New residences in subdivisions with established master plans • Compliance with Title 24 energy documentation requirements
Please call us for more information (925) 646-4108.