Legal access comes before everything else
A parcel with no legal right of access is not a homestead, it is a lawsuit. Physical access and legal access are different things: a track that people have always driven is not automatically a right you own. What you want to see is a recorded easement or deeded right of way, in writing, appearing in the title work, with a width and a purpose.
Ask specifically: is the road public or private? If private, who maintains it, under what agreement, and what does it cost per year? A private road association with dues is fine, and far better than an informal arrangement between neighbors who may sell to strangers. If access crosses somebody else's land with nothing recorded, treat that as a defect to be cured before closing rather than a detail to sort out later.
Check seasonal reality too. Many rural roads are legally public but not maintained in winter, and some are posted with weight limits during spring thaw. That is the difference between a year-round home and a summer camp.
Water is a property of the land, not a product you install
You can add solar to almost any parcel. You cannot add groundwater. Before you fall for a view, find out what water on this land actually looks like: is there a drilled well, and if so what is its yield, depth, and static level? If there is no well, what are neighboring wells doing, and what do local drillers say about the area?
Well reports are public record in most states, and drillers usually know a district by heart. Ask about depth range, typical yield in gallons per minute, and whether the area has known issues such as arsenic, sulfur, iron, or hardness. A low-yield well is workable with storage and a slow pump, but you need to know before you buy, because it changes the design and the budget.
In much of the western United States, surface water and sometimes rainwater are governed by water rights that do not automatically come with the land. Ask what rights convey. Elsewhere, springs and streams may be usable but regulated. The state and county pages on this site are a starting point for the local rules, and the land check tool will pull what public data exists for a specific parcel.
Where the sun actually falls, in December
Solar potential is not about how sunny the region is. It is about what the ground you will build on can see, in your worst month, after terrain and trees. A south-facing slope with an open southern horizon can outproduce a flatter, technically sunnier site that sits behind a ridge.
Walk the intended building site with a compass and look south. Note ridgelines and tall conifers. A ridge that blocks the low winter sun costs you the middle of the day in exactly the month when you have the least of it. Trees can be cleared, but clearing costs money, sometimes needs permits, and removes the shade that helps in summer.
Aspect matters for more than panels. A north-facing site in the north holds snow and ice longer, dries out slower in spring, and is colder for the whole heating season. Slope matters for drainage, for driveway grade, and for whether a septic system can work by gravity.
Soil, septic, and what the county will actually approve
In most jurisdictions, what you may build is decided by whether the soil will accept a legal waste system. That is usually established by a perc test or a soil evaluation, done by a licensed evaluator and filed with the health department. Some parcels fail. Some pass only for a small or engineered system that costs several times a conventional one.
If a parcel is being sold as buildable, ask for the paperwork that makes that true: a passing soil test, a septic design, or an existing permitted system with its records. A verbal assurance from a seller is not the same thing. If the test has not been done, an offer contingent on a passing test is standard and reasonable.
Composting toilets change part of this equation but rarely all of it. Many counties still require an approved system for greywater, and some do not recognize composting toilets for a permanent dwelling at all. Lesson nine covers the detail. What matters at the buying stage is that you ask the health department before you sign, not after.
Zoning, covenants, and the sentence that ends projects
Zoning decides whether you may live there and in what. The sentences that end projects are usually specific and local: minimum dwelling size, prohibition of temporary occupancy while building, a requirement to connect to power if a line is within a set distance, a ban on RV or tiny-home residence, or a minimum lot size for a new dwelling.
Private covenants can be stricter than the county and are enforced by neighbors rather than officials. Subdivision covenants sometimes prohibit exactly the things off-grid buyers plan: visible solar, outbuildings, livestock, or a second structure. These are recorded documents; read them in full before closing.
Call the planning or zoning office and describe your actual plan in plain words. Ask what permits it needs and what it is not allowed to be. Take names and dates and write the answers down. The printable questions-for-the-county sheet in the downloads section exists for this call, and it is the cheapest hour of due diligence in the whole process.
Walking the parcel like an inspector
Walk the boundaries, not just the middle. Find the corners if you can, and if you cannot, ask when it was last surveyed. Old rural boundaries drift into fences, tracks, and assumptions, and an encroachment is much cheaper to discover before you own it.
Look for standing water, cattails, and rushes, which suggest wetland or a high water table. Wetlands are federally and often state regulated, and even a small mapped wetland can move your building site or your driveway. Look at the low points after rain if you possibly can.
Look up as well as down for utility easements, and look for evidence of use: culverts, old foundations, buried debris, tire ruts through a field, a track that other people clearly use. Ask about mineral rights and timber rights, both of which can be severed from the surface in many states and can mean somebody else has a right to work on your land.
Finally, stand still for ten minutes in the place you would put the house and listen. Sound carries in rural quiet. Highways, quarries, shooting ranges, rail lines, and dairy fans are all things you will hear every day and cannot change.
Red flags worth walking away from
No recorded legal access. No water and no neighboring wells that work. A failed soil test with no engineered alternative. A seller who will not permit a contingency period for testing. Covenants that prohibit the structure or system you intend to build. Land in a mapped floodway rather than merely a flood zone. A price far below the local pattern with no explanation the seller will give.
None of these means every such parcel is worthless. It means the discount has to be real and you have to know what you are taking on. The parcel check tool on this site pulls flood, wetland, slope, and access data for a specific parcel and shows the sources, which is a good way to walk in with questions already framed.
