Building Permits Guide
Understand which permits you need, what they typically cost, and when they are required. Use our free tools to generate a customized checklist for your project.
Common Permit Types
Required for fences exceeding height limits (typically over 6 feet in rear yards, over 3-4 feet in front yards). Materials and placement may also trigger permits in some jurisdictions.
Required for accessory structures exceeding size limits (typically over 120 sqft). Smaller prefab sheds on skids often exempt; permanent foundations almost always require permits.
Required for decks above a certain height above grade (typically over 30 inches). Attached decks generally require permits regardless of height. Structural connections to the house always require permits.
Required for all in-ground pools and above-ground pools over a certain size. Includes barrier/fencing requirements for child safety. Electrical and plumbing sub-permits typically required.
Required for any structural addition to an existing building, including new rooms, second stories, garage conversions to living space, and enclosed patios. Must comply with current building codes regardless of original structure's age.
Accessory Dwelling Unit permit for building a secondary residence on a residential lot. May include attached ADUs, detached ADUs, garage conversions, and Junior ADUs (JADUs). Subject to state and local regulations.
Required for partial or full demolition of structures. May trigger environmental review (asbestos, lead paint), utility disconnection requirements, and neighboring property notifications in some jurisdictions.
Required for electrical work beyond minor repairs and like-for-like fixture replacements. Panel upgrades, new circuits, and rewiring require permits and inspections by a licensed electrician in most jurisdictions.
Required for new plumbing lines, water heater installation, and major repairs. Simple fixture replacements (faucets, toilets) typically do not require permits; any work on drain lines or supply lines does.
Required for roof replacement or major repair in most jurisdictions. Some jurisdictions exempt simple shingle-over-shingle re-roofs; structural changes, new sheathing, or material changes typically require permits.
Required for new HVAC system installation or full replacement. Includes central air conditioning, forced-air furnaces, heat pumps, and ductwork modifications. Simple filter or thermostat replacements do not require permits.
Required for solar panel installation on residential or commercial buildings. Many jurisdictions have streamlined the solar permit process under state mandate. Electrical sub-permits required for inverter and interconnection work.
Browse Permits by City
Permit requirements, fees, and processes vary by city. Find city-specific permit information for your location.
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