The parcel boundary is not the building area
A property can contain many acres and still have a small usable envelope. Setbacks, road frontage, easements, streams, wetlands, floodways, steep slope, soils, septic reserve area and private restrictions can overlap.
A current survey and a preliminary site layout help translate abstract rules into a physical plan.
Utilities nearby can still be expensive
“Power nearby” does not state whether service is available, where the connection point is, who must extend the line, whether easements are required or what the meter and construction charges will be.
Request written availability and a cost path from each provider. For private water and wastewater, evaluate the entire system—not only drilling or tank cost.
Make the offer match the unknowns
The biggest feasibility questions should be investigated during the contract period. Depending on the parcel, this may include survey, title, zoning, access, soil or septic evaluation, well research, environmental review, site planning and financing.
The contract language is a legal matter. The due-diligence plan should identify what evidence you need before the deadline.
Budget the ground before the house
A house budget often excludes the work between the road and the foundation. Build separate allowances for clearing, driveway, earthwork, drainage, erosion control, utility trenching, well, septic, permits and professional services.