National coverage
Home project costs and permit rules by state
Permits are issued locally, but the code, the owner-builder rule and the fee level are usually set at the state layer. Start with your state, then drill to the county or city that actually reviews your application.
Verified August 2026
States covered
50
all 50
Statewide codes
35
15 adopt locally
Projects modeled
50
per state
Population covered
334M
US residents
Priority markets
Where we are building city and county depth first.
Florida home projectsCosts +4% vs national · statewide codeTexas home projectsCosts -5% vs national · statewide codeCalifornia home projectsCosts +31% vs national · statewide codeNorth Carolina home projectsCosts -7% vs national · statewide codeGeorgia home projectsCosts -6% vs national · statewide codeArizona home projectsCosts +0% vs national · local code adoptionTennessee home projectsCosts -10% vs national · statewide codeSouth Carolina home projectsCosts -8% vs national · statewide codeColorado home projectsCosts +8% vs national · local code adoptionNevada home projectsCosts +6% vs national · local code adoptionVirginia home projectsCosts +3% vs national · statewide codeNew Jersey home projectsCosts +21% vs national · statewide codeOhio home projectsCosts -7% vs national · statewide codePennsylvania home projectsCosts +5% vs national · statewide codeNew York home projectsCosts +28% vs national · statewide code
Florida has our deepest coverage — 67 counties and city-level permit data
Most and least expensive states to build in
Modeled construction cost index vs the national baseline.
| Hawaii | +62% vs national |
|---|---|
| Alaska | +34% vs national |
| California | +31% vs national |
| New York | +28% vs national |
| Massachusetts | +26% vs national |
| Mississippi | -15% vs national |
|---|---|
| Arkansas | -13% vs national |
| Oklahoma | -13% vs national |
| Kansas | -12% vs national |
| West Virginia | -12% vs national |
Popular projects nationwide
Roof Replacement cost$9,500 – $32,000 nationalAC Replacement cost$5,200 – $15,500 nationalFence Installation cost$2,400 – $11,000 nationalWater Heater Replacement cost$1,200 – $5,400 nationalPool Installation cost$38,000 – $115,000 nationalWindow Replacement cost$7,500 – $34,000 nationalElectrical Panel Replacement cost$1,900 – $6,800 nationalGenerator Installation cost$6,500 – $22,000 nationalSolar Panel Installation cost$15,000 – $48,000 nationalKitchen Remodel cost$18,000 – $92,000 nationalBathroom Remodel cost$9,000 – $42,000 nationalDriveway Replacement cost$4,200 – $19,000 national
Northeast
ConnecticutStatewide code · HartfordDelawareLocal adoption · WilmingtonMaineStatewide code · PortlandMarylandStatewide code · BaltimoreMassachusettsStatewide code · BostonNew HampshireStatewide code · ManchesterNew JerseyStatewide code · NewarkNew YorkStatewide code · New York CityPennsylvaniaStatewide code · PhiladelphiaRhode IslandStatewide code · ProvidenceVermontLocal adoption · Burlington
South
AlabamaLocal adoption · BirminghamArkansasStatewide code · Little RockFloridaStatewide code · MiamiGeorgiaStatewide code · AtlantaKentuckyStatewide code · LouisvilleLouisianaStatewide code · New OrleansMississippiLocal adoption · JacksonNorth CarolinaStatewide code · CharlotteOklahomaStatewide code · Oklahoma CitySouth CarolinaStatewide code · CharlestonTennesseeStatewide code · NashvilleTexasStatewide code · HoustonVirginiaStatewide code · Virginia BeachWest VirginiaLocal adoption · Charleston
Midwest
IllinoisLocal adoption · ChicagoIndianaStatewide code · IndianapolisIowaLocal adoption · Des MoinesKansasLocal adoption · WichitaMichiganStatewide code · DetroitMinnesotaStatewide code · MinneapolisMissouriLocal adoption · Kansas CityNebraskaStatewide code · OmahaNorth DakotaStatewide code · FargoOhioStatewide code · ColumbusSouth DakotaLocal adoption · Sioux FallsWisconsinStatewide code · Milwaukee
Mountain West
West Coast & Pacific
Sources
Sources & verification
Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.