Lot due diligence — everything you need to know about a parcel, in one place
Parcela pulls the parcel, zoning, flood and utility data for a U.S. lot into a single clear report. Instead of clicking through the county GIS, the zoning map and the FEMA flood viewer one at a time, you check what you can build, the constraints and the development potential in about 30 seconds.
Check my parcel →How to run lot due diligence with Parcela
- 1Pick the parcel. Enter the address or the parcel number (APN), or click the lot on the map. Parcela finds its boundary and area from the county parcel layer.
- 2Run the analysis. The app automatically pulls the zoning, the FEMA flood zone (NFHL), geology and slope, utilities and overlay constraints for that location.
- 3Get the report. In seconds you get a report with the zoning district, key limits, hazards and a buildable envelope — plus a 3D shadow study and A/B/C development scenarios.
Why do due diligence before buying land?
A restrictive zoning district, a FEMA Special Flood Hazard Area, an expansive-soil or steep-slope hazard, or no road frontage and utility access can quietly kill a project — and that information is public but spread across the county GIS, the zoning map and the FEMA flood viewer. Parcela brings it together before you sign the contract.
What happens after the analysis?
From the report you can open the 3D sun and shadow study, generate A/B/C development scenarios, export the boundary and setback lines to DXF, and sketch a first house on your lot with the AI assistant.
Frequently asked questions
What is lot due diligence?
It is the gathering and reading of every relevant fact about a parcel — boundary, zoning, environmental and geotechnical hazards, flood exposure and utilities — to understand what can be built, how, and whether the purchase makes sense.
What data does the Parcela report cover?
The parcel (boundary, area, APN), the zoning district and its limits (use, FAR, height, setbacks, lot coverage), the FEMA flood zone, soils and slope, utilities, and overlay districts where available.
Does coverage work nationwide?
Parcels are maintained county by county — there are roughly 3,243 counties and no single national parcel layer — so coverage follows the county GIS, with the strongest depth in NY, CA, TX, FL, IL and WA. Where a county layer is not machine-readable, Parcela falls back to a deep link rather than blocking the report.
Does the report replace a geotechnical or legal review?
No. It is a decision-support layer built from official open data. A geotechnical (soils) report, a boundary survey, and a title and zoning review by qualified professionals are still required before you buy or build.