Land Feasibility for Custom Homes · BuilderConcierge AI

How to determine whether land is buildable

To determine whether land is buildable, evaluate its zoning, legal access, setbacks, utility availability, soil and percolation, drainage and flood risk, environmental restrictions, permitting jurisdiction, and estimated sitework cost. A parcel may be legally buildable but financially impractical: sitework alone can exceed $200,000 on constrained lots. Always complete a feasibility review under contract with a contingency, never afterward.

The feasibility checklist

Zoning & use. Is residential single-family allowed? What is the minimum lot size, maximum height, and required setbacks?
Legal access. Public road frontage, recorded easement, or a dependency on a neighbor.
Utilities. Water, sewer (or septic feasibility), electric, gas, fiber. Connection fees and tap costs.
Soils & topography. Bearing capacity, expansive clays, rock, slope, retaining-wall requirements.
Drainage & flood. FEMA flood zone, stormwater obligations, downstream impact.
Environmental. Wetlands (Section 404), endangered species, historic overlays, tree-preservation ordinances.
Permitting jurisdiction. City, county, HOA, design review board, fire marshal, health department.
Sitework cost estimate. Clearing, grading, drives, utilities, retaining walls. Often the variable that decides feasibility.

Primary sources

County planning & zoning department.
County property records and recorded easements.
FEMA Flood Map Service Center.
State environmental and wetlands authority.
Local utility providers for service availability and connection fees.

Next step

Capture the parcel you're considering inside Home Vision discovery and an advisor will flag the most likely feasibility risks before you spend money on professional review.

Common questions

What makes a lot unbuildable?+

Zoning that excludes residential use, no legal access, failed perc testing on a septic-required lot, insufficient buildable area after setbacks, wetlands, mapped flood hazards, title restrictions, or sitework cost that exceeds the parcel's economic value.

Do I need a perc test?+

Only if the lot is not served by municipal sewer. Perc tests evaluate whether the soil can support a septic system; failure can render an otherwise attractive lot unbuildable for residential use.

What does a feasibility review cost?+

Most desk-level reviews run $500 to $3,000 depending on jurisdiction complexity. Full feasibility — including survey, soils, and engineering input — typically runs $5,000 to $25,000. Both should happen during the contract contingency period.