Land due diligence: the complete guide.
What land due diligence covers, the sequence we run it in, what each phase costs, and where buyers get burned — plus 17 deep-dive guides on title, access, soils, zoning and cost.
What land due diligence actually means
Land due diligence is the research between contract and closing that confirms a parcel can legally and physically be used the way you intend. Houses get an inspection and an appraisal. Raw land gets a photo and an asking price — everything that decides value lives in county records, FEMA panels and soil surveys nobody sends you.
Sequence matters. Records first, because a title or easement problem kills a deal for free. Physical testing last, because surveys and perc tests cost real money and are wasted on a parcel that was never buildable.
Confirm the seller is the recorded owner, pull the deed chain back at least two transfers, and search liens, judgments and unpaid taxes. Read every recorded easement and restriction in full. Most deals that die, die here.
- Deed chain and owner of record
- Liens, judgments, tax status
- Easements, covenants, severed rights
Zoning decides whether your plan is legal before it decides whether it is affordable. Check permitted uses, minimum lot size, setbacks, subdivision potential, and any overlay district that quietly overrides the base zoning.
- Zoning district and permitted uses
- Setbacks, lot size, coverage
- Overlays and comprehensive plan
Legal access and physical access are separate questions — ask both. Then look at the FEMA flood panel, mapped wetlands, NRCS soils for septic suitability, and slope for actual buildable area.
- Legal and physical access
- FEMA flood zone and wetlands
- Soils, slope, buildable area
Price the connection, not the proximity. Get a per-foot electric run estimate, a well depth range for the area, and a septic feasibility read. Then reassess the tax bill at your purchase price, not the seller's basis.
- Utility run costs and well depth
- Septic feasibility
- Reassessed taxes and comps
The complete land due diligence library
Each phase above has a deeper guide behind it. Everything below is free to read, grouped in the order a buyer usually needs it.
Start here
The checklists and step-by-step guides most buyers open first.Title, ownership and rights
Who owns what, and what travels with the land after closing.Access and boundaries
Whether you can legally reach the parcel, and where it actually is.Buildability
Whether the parcel can hold the thing you want to put on it.Cost and getting help
What the research costs, and what a written report includes.Land due diligence questions we get most
What is land due diligence?
Land due diligence is the research you do between going under contract and closing to confirm that a parcel can legally and physically be used the way you intend. It covers title and ownership, zoning and land use, access, flood and environmental constraints, utility feasibility, and the true carrying cost after reassessment.
How long does land due diligence take?
A focused review of a single parcel typically takes one to three weeks. County record access, whether a survey exists, and whether a perc test is required are the three variables that move the timeline most.
How much does land due diligence cost?
Doing it yourself costs mostly time plus record fees. A written third-party report generally runs a few hundred dollars; a boundary survey and a perc test are separate line items that are usually ordered only after the desk research comes back clean.
Is due diligence different for raw land than for a house?
Yes. A house gets an inspection and an appraisal. Raw land gets neither by default, so almost everything that decides value — buildability, access, flood, septic — sits in public records that no one hands you.
What order should I run land due diligence in?
Records first, then regulation, then physical, then cost. Title, liens and easements are free or cheap to check and kill the most deals, so they go first. Surveys and perc tests cost real money and are wasted on a parcel that was never buildable.
Can I do land due diligence myself?
Yes. Almost every source — the county recorder, the assessor's GIS, FEMA flood maps, the National Wetlands Inventory and the NRCS soil survey — is public and free. Our 47-point checklist is the same list we work from. Buyers hire us for the time it takes and for a written second opinion, not for secret access.
Get the checklist we run on every parcel
Enter your email and we'll send the printable 47-point PDF plus a full redacted sample report.
One email with the file. No newsletter, no spam.
Related reading: the 47-point land buying checklist, how to buy land and a sample report.