Free Tools
Free tools for builders, architects, and developers. Check your project against city-specific codes before you submit.
Featured Tool
Pre-submission building code review. Enter your project details — setbacks, height, coverage, parking — and get a compliance report showing what a plan checker will flag before you submit.
Quick reference for city building codes across CA, FL, and TX. Zone requirements, setback tables, height limits, parking ratios, and common plan check flags — organized by city.
Look up any property by address. See parcel details, APN, county, and what state and local law lets you build — ADU eligibility, SB 9 lot split potential, and development scenarios.
Enter your lot dimensions and zone — see your buildable envelope, max footprint, and lot coverage.
Check if your property qualifies for an ADU — detached, JADU, garage conversion, or multiple units under SB 1211.
Calculate required parking spaces — main units, ADU, and guest parking with transit exemptions.
Check your floor area ratio against city limits — see remaining buildable sqft before you design.
Setback tables, height limits, lot coverage, parking ratios, and common plan check flags by city.
Comprehensive city-specific guides covering ADU eligibility, setback requirements, costs, permits, and state law analysis.
Browse City ADU Guides →