After fifteen years underwriting rural property loans, I watched plenty of buyers fall in love with the land and ignore the math. Here is the order I run the numbers in before signing anything.
Start with the true carrying cost
The purchase price is the smallest number. Property taxes, well and septic, road maintenance, insurance, and the cost of simply getting utilities to the building site can dwarf the mortgage. I total the annual carrying cost first, then divide by twelve — that monthly figure is what you actually have to live with.
Get the financing right
Raw land loans are not home loans. Expect larger down payments and shorter terms. A USDA or Farm Credit product often beats a conventional lender for genuinely rural parcels.
The one number that decides it
Total monthly carrying cost as a share of take-home pay. Under 15% and you have breathing room. Over 25% and the land will own you, not the other way around.