Land records · Parcel maps · October 5, 2026
How to Tell If Land Is Buildable Before You Buy
How to tell if land is buildable: check zoning, legal lot status, access, water, septic or sewer, flood zones, wetlands, slopes, easements, and covenants.
How to tell if land is buildable: confirm the lot is a legal lot of record in a zone that allows the home you want, that it has legal access to a road, that it can get water and either sewer or a septic system, and that flood zones, wetlands, steep slopes, easements, setbacks, and private restrictions leave enough usable area. The final answer usually comes from the local planning and building departments, so contact them early. This page is general land-records background, not legal advice.
Buildability checklist
| Check | Where to look |
|---|---|
| Zoning allows a home | Zoning map and code. See how to find zoning of a property |
| Legal lot of record | Planning department, recorded plat, or deed history |
| Minimum lot size and width | Zoning code |
| Legal access | Plat, deed, or recorded access easement |
| Water | Public water availability or well feasibility |
| Sewer or septic | Sewer district or health department. See what is a perc test |
| Flood zone | FEMA map. See how to find flood zone by address |
| Wetlands and streams | National Wetlands Inventory, local maps, delineation. See wetland line vs lot line |
| Slopes and soils | Topographic maps and soil surveys |
| Easements | Plat and title. See how to find easements on a property |
| Private restrictions | Recorded covenants and HOA rules |
Legal lot status
A parcel created by an illegal split or one that does not meet current rules may not qualify for a building permit. Lots in recorded subdivisions usually qualify, but older or rural parcels deserve a check. Ask the planning department whether the parcel is a buildable lot of record.
Access
Landlocked land without a recorded easement may be difficult or impossible to permit. A driveway permit may also be needed from the road authority.
Utilities
Ask the utility for the nearest service and extension costs. Power line extensions to remote land can be expensive. Wells depend on groundwater, and septic depends on soils.
Usable building area
Subtract setbacks, easements, wetland buffers, floodway areas, and steep slopes from the lot. A large parcel can still have a small building envelope.
Ask for a pre-application meeting
Many planning departments offer pre-application meetings or zoning verification letters that confirm whether a home can be built and what approvals are needed.
Protect yourself when buying
- Make the purchase contingent on a satisfactory perc test or sewer availability.
- Include a feasibility period for zoning, survey, and permits.
- Order a boundary survey.
- Review the title commitment.
Red flags in listings
Phrases such as “sold as is,” “recreational land,” “no perc,” “seller makes no representations,” or a price far below nearby lots can signal a buildability problem. So can parcels described only by acreage without a recorded plat, or land reached by a dirt track across a neighbor’s property. None of these automatically rule out building, but each deserves a direct question to the seller and the planning office before you commit.
Bottom line
To tell if land is buildable, verify zoning, legal lot status, access, water, sewer or septic, flood and wetland constraints, slopes, easements, and covenants. Contact planning and health departments, and make your purchase contingent on key approvals. Explore parcels on the Platbookmapper map.
How to tell if land is buildable FAQ
How do I know if a lot is buildable?
Check zoning, legal lot status, access, utilities, septic or sewer, and environmental limits with local officials.
Can you build on land without road access?
Usually only with a recorded legal access easement and permits.
What makes land unbuildable?
Common issues include failed perc tests, wetlands, floodways, illegal lot status, or no legal access.
Does the county confirm if land is buildable?
Many planning departments provide zoning letters or pre-application meetings.
Should I make a land purchase contingent on a perc test?
For land needing septic, that is a common protection.