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Permit rules by project type

16 common home projects, each mapped across 20 states. Pick a project to see how permit requirements differ by location.

Structures & additions

Accessory Dwelling Unit (ADU)

Backyard cottage, in-law suite, garage conversion

Garage / Carport

New detached or attached garage

Room Addition

Expand the home footprint

Roof Replacement

Re-roof with same footprint

Outdoor & yard

Deck / Porch

Raised or ground-level outdoor platform

Fence / Wall

Property-line barrier or privacy wall

Shed / Outbuilding

Storage shed, studio, or detached outbuilding

Driveway / Parking Pad

New or expanded paved access

Swimming Pool / Spa

In-ground or above-ground pool

Retaining Wall

Grade-change structural wall

Mechanical systems

Rooftop Solar PV

Residential solar panel system

HVAC Replacement

Furnace, AC, or heat-pump swap

Interior remodels

Basement Finish

Finish or remodel an existing basement

Kitchen Remodel

Cabinets, layout, plumbing & electrical

Bathroom Remodel

Fixtures, plumbing, ventilation

Window / Door Replacement

Swap windows or exterior doors