Land due diligence checklist: 30 things to check before you buy land

Buying land is mostly a list of questions that someone has to answer before you close. This checklist puts them in the order they usually come up, from a first desktop look before you make an offer to the last checks before closing. Each item says who can answer it.

Published · By the Check the Land team

How to use this checklist

30 items in four stages. Items marked Screen checks this get a first look from mapped public data in a Check the Land report (10 of them). The rest name who to ask. A map can raise a question; it can't settle access, title, boundaries or whether a septic system will work.

1. Before you make an offer: the desktop look

A few minutes to an hour, from public maps. Use it to decide whether the land is worth pursuing.

  1. 01

    Pin the exact spot

    Get the parcel ID (APN) from the listing or the county parcel viewer, and put the pin where you would build, not on the road. Conditions can change across a parcel.

    Ask: County assessor or GIS viewer

  2. 02

    FEMA flood zone

    Which zone the building spot is in, whether it's in a Special Flood Hazard Area, and whether a digital flood map exists there at all.

    Screen checks thisRead the guide

  3. 03

    Wetlands and wet soils

    Mapped wetlands on or near the land, and soils that pond or drain poorly. Both can limit where you build and where a septic system can go.

    Screen checks thisRead the guide

  4. 04

    Slope and elevation

    How steep the ground is at the building spot. Steep sites cost more to grade, drain and reach with a driveway.

    Screen checks thisRead the guide

  5. 05

    Soil drainage and shrink-swell

    Mapped soil properties that affect foundations, driveways and septic suitability. A first look, not a perc test.

    Screen checks thisRead the guide

  6. 06

    Wildfire hazard

    Mapped wildfire hazard for the area, which can affect insurance and building rules in some states.

    Screen checks thisRead the guide

  7. 07

    Distance to roads

    How far the nearest mapped road and major road are, with names and surface where mapped. Distance is not legal access; see the title items below.

    Screen checks this

  8. 08

    Power nearby

    Distance to the nearest mapped high-voltage line and substation. A sign of grid in the area, not proof you can connect.

    Screen checks thisRead the guide

  9. 09

    Internet

    Whether fiber broadband is reported in the area in the FCC's broadband data.

    Screen checks this

  10. 10

    Water and sewer

    Whether the land is near a public water or sewer service area, and how common private wells are nearby.

    Screen checks this

  11. 11

    Contamination sites nearby

    Listed environmental cleanup and regulated sites within the search radius.

    Screen checks this

  12. 12

    Zoning and allowed uses

    Whether you can build the house, cabin, barn, RV or business you have in mind, and the minimum lot size and setbacks.

    Ask: County or city planning and zoning office

  13. 13

    Taxes and exemptions

    The current tax bill, and whether an agricultural or timber exemption applies. Losing one after a sale can raise taxes or trigger a rollback charge in some states.

    Ask: County assessor or appraisal district

Run the desktop look in a minute

Enter an address or coordinates. The free preview shows the flood zone, slope, nearest road, power, wildfire and wetlands at your pin, and which data exists there.

2. In the contract

Before you sign. The goal is enough time and the right contingencies to finish the checks below.

  1. 14

    A long enough due diligence period

    Perc tests, surveys and utility estimates can take weeks in rural counties. Ask for a feasibility period that fits.

    Ask: Your agent or real estate attorney

  2. 15

    Contingencies that match your plans

    Common ones cover the survey, septic suitability, financing, access and title. Without them, a failed check may cost you your deposit.

    Ask: Your agent or real estate attorney

  3. 16

    Seller disclosures

    Past flooding, fill or dumping, buried tanks, boundary disputes, shared driveways and any surveys or elevation certificates the seller already has.

    Ask: The seller

3. During due diligence

The on-site work and professional answers. This is where most deals change or fall apart.

  1. 17

    Boundary survey

    Where the lines and corners actually are, the acreage, and any fences, buildings or roads that cross them.

    Ask: A licensed land surveyor

  2. 18

    Title search

    Liens, easements, rights of way, deed restrictions and covenants recorded against the land. Review every exception in the title commitment.

    Ask: A title company or real estate attorney

  3. 19

    Legal access

    Frontage on a public road or a recorded easement to one. Land with no legal access (landlocked) can be very hard to build on, finance or resell.

    Ask: Title company; county road department

  4. 20

    Mineral, water and timber rights

    Whether any of these were sold or reserved separately. Severed mineral rights can mean someone else may have the right to drill.

    Ask: Title company or attorney

  5. 21

    Septic suitability (perc or soil test)

    Whether the soil can take a septic system, what type, and where. A failed test can make a rural lot unbuildable without a costly alternative system.

    Ask: County health department or a licensed soil evaluator

  6. 22

    Well water

    Typical well depth, yield and water quality in the area, and whether permits are needed.

    Ask: Local well drillers; state well records

  7. 23

    Power line extension cost

    A written estimate from the utility that serves the road, including poles, transformers and any easements.

    Ask: The serving electric utility or co-opRead the guide

  8. 24

    Driveway and building permits

    Driveway or culvert permits, building permits, setbacks and any floodplain development permit.

    Ask: County road department and building office

  9. 25

    Flood elevation and insurance

    If any part of the land is near a mapped flood zone, an elevation certificate for the building spot and an insurance quote.

    Ask: A surveyor and an insurance agentRead the guide

  10. 26

    Environmental assessment

    A Phase I Environmental Site Assessment if the land had commercial, industrial or dumping use, or if your lender requires one.

    Ask: An environmental professional

  11. 27

    Walk the land

    Wet spots after rain, dumping, old wells or tanks, trails or roads neighbours use, and how the land actually drains.

    Ask: You, ideally after a rain

4. Before closing

The last checks, once the professional answers are in.

  1. 28

    Final title commitment

    Every exception understood and anything unacceptable cleared before closing.

    Ask: Title company or attorney

  2. 29

    Insurance in place

    Liability cover for vacant land, and flood or fire cover if the checks above call for it.

    Ask: An insurance agent

  3. 30

    A last walk-through

    Make sure nothing has changed: new dumping, cut timber, removed fences or markers.

    Ask: You

This checklist is general information, not legal, engineering or insurance advice. Rules, forms and timelines vary by state and county.