Step by step
- Determine the jurisdiction: city zoning inside city limits, county zoning in unincorporated areas.
- Open the zoning map (search "[city] zoning map") and click the parcel to get its district code, for example "R-1" or "C-2".
- Check for overlay districts (historic, flood, airport, design) that add rules on top of the base district.
- Read the district's permitted uses and dimensional standards (lot size, setbacks, height, density) in the zoning code.
- Call or email the planning department for a zoning verification letter if you need an official answer.
Does every place have zoning?
No. Houston, Texas is the largest US city without conventional zoning (it relies on deed restrictions and development ordinances), and many rural counties have limited or no zoning outside city limits.
How do I get zoning for many parcels?
Parceled links parcels to zoning districts and returns the raw zone code with a normalized category, so you can search for, say, every single-family parcel over 6,000 sq ft where ADUs are allowed. See zoning data API.
Frequently asked questions
What does R-1 zoning mean?
R-1 commonly means a low-density, single-family residential district, but each jurisdiction defines its own districts. Always read the local code.