Calibrated where you build.
PlanCheckNow has deep, LADBS-grade calibration for the LA area plus state, metro, and climate-overlay coverage across the United States and Canada. Plans cite the correct code edition for the jurisdiction — not California codes everywhere.
LA-deep
5
LADBS-grade depth
US states + DC
51
State calibration
Counties
63
County-level depth
Metros
61
City overlays
Canadian provinces
6
Provincial layer
Climate overlays
11
HVHZ / WUI / snow / seismic
Deep calibration
For these five Southern California jurisdictions, PlanCheckNow has dedicated approval anchors covering published Information Bulletins, Plan Check Correction Sheet patterns, local zoning overlays, and AHJ-specific quirks. This is the same depth our published benchmark scored 100% against.
50 US states + DC
For each state, the engine cites the correct IBC/IRC edition, state-specific amendments (energy code, accessibility, seismic, snow, wind), and high-impact mandates (Title 24 in CA, FBC for Florida, NJ Coastal Construction Subcode, etc.).
61 cities with their own code overlays
Cities like New York, Chicago, Miami-Dade, Seattle, Boston, DC, Burbank, West Hollywood, Culver City, San Jose, Dallas, San Antonio, Nashville, and more maintain building codes that override state code or layer on top of it. The engine recognizes each and applies the city-specific overlay (NYC Zoning Resolution, Chicago Climate Code, Miami-Dade NOAs, WeHo Green Building, etc.) on top of state calibration.
63 counties calibrated for unincorporated areas + overlays
County-level building departments handle permits for unincorporated areas and often impose overlays that affect incorporated cities too (LA County WUI, Sonoma WUI, Monroe County Keys ROGO, Travis Edwards Aquifer, Westchester Stormwater). The engine matches the county layer alongside city + state + climate, so a Hamptons project gets Suffolk County NY + NY State + Pine Barrens + coastal overlay all stacked.
6 provinces
Canadian projects are reviewed against the National Building Code of Canada (NBCC) plus provincial code overlays. Ontario, British Columbia, and Quebec maintain provincial codes that supersede the NBCC; Alberta, Manitoba, and Saskatchewan adopt NBCC with provincial amendments.
High-impact zones get extra scrutiny
On top of state + metro calibration, the engine stacks climate-specific overlays for projects in hurricane zones, high-seismic regions, heavy snow areas, high-altitude elevations, and the California Coastal Zone. A Miami-Dade project gets the HVHZ overlay; a Denver mountain project gets heavy-snow + high-altitude; a Seattle waterfront project gets high-seismic.
Honest about what this means
LADBS area is the deepest. Five cities have benchmark-tested calibration with the detail of an in-house plan checker. The other coverage layers are coarser — state edition + key amendments + metro overlays where they exist. Quality decreases as scope broadens; that's how this kind of system works.
Outside the LA five, expect more "needs verification" notes. The engine flags things it's less certain about when operating outside its deepest calibration. You always get the option to upload your own AHJ's correction sheet templates for white-label tightening (Teams tier).
Need your city next? We expand calibration based on customer demand. If you build in a jurisdiction not on this page and want it deepened, tell us at the contact form — we calibrate cities in order of demand.
Build anywhere. Get a calibrated review.
First review is free. Drop in your plan set; the engine picks the right code edition, amendments, and overlays for your address automatically.