A lot that looks perfect can be difficult or expensive to build on. Checking the rules, the utilities and the ground itself before you buy can save you from an expensive mistake.
Start with zoning, which governs how a parcel may be used. A lot might be zoned for single-family homes, for agriculture, for mixed uses or for something else, and zoning can restrict the size, height and number of structures. Setbacks define how far buildings must sit from property lines, roads and sometimes water, and they shape the usable building area, especially on small or irregular lots.
These rules differ by city, county and state, and they change over time, so do not rely on a listing description or a seller's assurance. Contact the local planning or building department directly, ask what is allowed on the specific parcel and request the answer in writing where possible. Also ask about overlays or special districts, such as historic, environmental or flood-related areas, which can add requirements.
If a lot is part of a subdivision or a community with an association, ask for the governing documents before you close. Rules may cover minimum home size, exterior materials, fencing, outbuildings, how long you have to start and finish construction and who approves your plans.
Utilities are one of the largest variables in the cost of building on a lot. Find out whether municipal water and sewer are available at the property line, whether power and communications are nearby and how far lines must be extended. Extensions and connection requirements can be a significant expense, and who pays for what varies by area.
Where public sewer is not available, the property typically needs an on-site wastewater system, and where public water is not available, a well. Both depend on local approvals and on the land itself. Also confirm legal access: that the lot fronts a public road or has a recorded right of access, and who maintains any private road or driveway easement.
Ask the seller what they know about past problems, such as standing water, previous fill or earlier building attempts. Their answers, and any hesitation, are worth noting alongside your own testing.
A percolation test, often called a perc test, measures how quickly water drains through soil and is commonly part of evaluating a site for a septic system. Whether a perc test or a different soil evaluation is required, and who may perform it, is set by local health or environmental authorities, so ask them what applies.
Soil conditions also affect the foundation. Expansive clay, high water tables, fill material, rock and steep slopes can all influence the foundation design and the cost. A geotechnical review by a qualified professional can describe what the ground will support. Many buyers make their offers contingent on satisfactory testing, so ask a real estate professional or attorney how to structure that in your area.
A current boundary survey shows property lines, the location of improvements, and easements. An easement gives someone else a right to use part of the land, for example for a utility line, shared access or drainage, and it can limit where you can build. Review a title report to find recorded easements, liens and restrictions, and check for covenants or association rules that may restrict design, materials or timelines.
Ask about drainage and flood exposure as well. Look at how water moves across the lot during rain, whether the parcel lies in a mapped flood area and how that affects building requirements and insurance. Local officials can tell you what mapping and rules apply.
Where shared driveways, rights of way or utility corridors cross a parcel, find out exactly who maintains them and who pays. Informal arrangements with neighbors are a common source of later disputes, so ask that they be documented.
Use this list to organize your inquiries before you commit, and keep written records of answers:
The price of land is only part of what it costs to make a lot buildable. Depending on the parcel, additional costs may include clearing trees, grading, building a driveway, extending utilities, drilling a well, installing a septic system, constructing retaining walls, managing stormwater and paying local connection or impact fees. None of these shows up in the listing.
Because the numbers differ so widely from one lot to another and from one region to another, request local quotes and professional input rather than relying on rules of thumb. A lot with a lower purchase price and heavy site work can easily cost more overall than a pricier lot that is ready to build on.
Different kinds of lots bring different questions. Rural parcels often raise questions about wells, septic systems, road access, distance to emergency services and the cost of bringing power. Suburban lots in planned areas may come with association rules, design review and utility stubs already in place. Infill lots in established neighborhoods can bring tight setbacks, existing easements, older utility connections and neighbors' concerns.
Whichever type you are considering, confirm what applies with the local authority and ask what has been built nearby recently. Neighboring projects show what is realistic in your area and can reveal issues, such as drainage or soil conditions, that matter for your own build.
The most overlooked step is asking a builder or design-build team to look at the lot before you buy. They can offer a view of likely site work and of how your preferred layout would sit on the land. That is the purpose of our lot evaluation service, which applies to land you are considering as well as land you own.
Fit the findings into your overall plan using our step-by-step overview, and talk to a lender early about how land purchases are treated, as explained in our construction loan guide.
A percolation test measures how quickly water soaks into the ground, and it is often used when evaluating a site for a septic system. Local authorities determine whether it is required and how it must be done.
Setbacks are required distances between a building and property lines, roads or other features. They are set by local zoning, so check the rules for your specific parcel.
Not always. Utility extensions, difficult soils, slope and access can make site work expensive, so the lowest purchase price is not necessarily the lowest total cost.
Your local planning or building department is the authoritative source. Ask about zoning, setbacks, permits and any special requirements for the parcel.
It helps to involve a builder or design-build team first, so someone experienced reviews the lot with your intended home in mind before you commit.
Tell us where you are in the process and we will reply with a sensible next step.