Price Per Acre vs Price Per Square Foot: How Land Changes Home Value in Overton County

I'm Bridget Salazar, OC Homegirl. I'm a REALTOR® with The Realty Firm and a Certified Residential Appraiser, and I work across Overton County.

When somebody calls me about a property with land, one of two numbers almost always comes up first. A price per square foot they found online, or a price per acre a neighbor quoted them.

Both numbers are real. Both are useful. Neither one values a house on acreage by itself, and in Overton County most of what sells is a house on its own land.

So here is what each number measures, where each one breaks, and how I put them together.

Price per square foot is a sale price divided by the finished living area of the house.

It is a fast way to compare two similar houses in a similar spot. In a subdivision where the lots nearly match, it holds up reasonably well, because the land is close to a constant.

It comes apart the moment the lots stop matching.

Take a sale that included twenty acres and divide it by square feet. All of that land is now baked into the per-foot figure. Apply it to a house on a half acre and you land too high. Run it the other way, using a half-acre sale on a place with twenty acres, and you land too low.

House size plays the same trick. A smaller house usually shows a higher price per square foot than a larger one, because the expensive parts of a house do not double when the floor plan doubles. The kitchen, the baths, the roof and the mechanical systems cost what they cost.

Price per acre comes out of land sales, and for raw land it is the right tool.

It also swings more than people expect, because not every acre is the same acre. What moves it:

• road frontage and legal access
• cleared versus wooded, and how steep
• whether the ground will support a septic system
• water and power at the road
• flood areas, creeks, bluffs and sinkholes
• whether the tract can be divided

Size moves it too. A large tract usually sells for less per acre than a small one, so dividing a big farm's price by its acres gives you a number you cannot use on the two acres under a house in town.

If land itself is what you are buying or selling, that is its own process. Start with buying land or selling land.

Here is how I handle it.

A property with a house and land has a site value and an improvement value. The land contributes what buyers pay for that much usable ground in that location. The house contributes what buyers pay for that much finished space in that condition.

So I do not start with either ratio. I start with closed sales that resemble the whole package. Similar house size, similar acreage, similar access, similar part of the county. Then I adjust each sale for the differences.

The ratios come in at the end, as a sanity check. If my adjusted number implies a per-foot or per-acre figure that nothing nearby supports, I go back and look again.

That is the method behind every price I give, and the home value page lays it out step by step.

This is where sellers and I disagree most often, so I will say it plainly.

Land adds value when a buyer can use it or wants it. Past a point, each extra acre adds less than the one before it. The tenth acre is worth less to most buyers than the first.

Land that cannot be used can add close to nothing. A steep wooded hollow, a strip with no access, a wet bottom that will not perk. Appraisers treat that ground differently from flat cleared pasture, because buyers do.

Buyers here pay for privacy, pasture, a pond, a building site, road frontage and room for a shop. They do not pay much for acres they cannot reach.

None of that means your land is worth less than you hoped. It means the number has to come from what land like yours actually sold for, not from multiplication.

Most of Overton County is homes on their own land, and Livingston runs to large lots and acreage. Cross into Cookeville and Putnam County and you find more subdivisions along with 1 to 3 acre lots, so per-square-foot comparisons behave better over there.

That is a practical difference, not a trivia point. A per-foot number pulled from a Cookeville subdivision does not transfer to a house on fifteen acres outside Livingston. Most online estimates cannot tell those two properties apart.

It changes the marketing as well. A house with usable acreage and a shop reaches a different buyer than a house on a town lot, and the listing has to speak to that buyer. Land listings reach a different buyer again, which is why selling land in Livingston gets its own page. The rest of my pricing and marketing method is on how I sell a home.

If you own a house with land in Overton County and you want to know what it is worth, do not start with a ratio. Start with the sales.

I will walk the property, measure the house, look at what is usable, pull the closest sales and show you every adjustment. When I am your listing agent, that number is a pricing opinion built with appraisal methods. It is not a formal appraisal, and I will tell you which one your situation calls for.

Questions about Greenbelt, rollback taxes, or how a lender will treat the acreage belong with your CPA, your attorney or your lender, and the contract sets the terms.

Buying and selling at once? See how I help buyers.

Send me a message or call (931) 510-1346. I answer every question.