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Cost Estimator · Knoxville, Tennessee

How Much Does It Cost to Finish a Basement in Knoxville, TN?

Finishing 800 square feet of basement at a mid-range finish typically lands between $83,500 to $111,500 in the Knoxville area. Water, ceiling height and whether a bathroom goes in decide most of it, so describe your basement below for a planning range of your own.

How much of the basement are you finishing?

Only the area that becomes living space.

Finish level
What is down there now?
Is the basement dry?
A bathroom down there?
Egress windows

A bedroom below ground needs a window or a door large enough to get out through.

Anything else?
Typical projects

Typical Basement Finishing Costs

Planning ranges for common basement finishing projects in the Knoxville area, including permits. Your own house can land outside them, which is what the visit is for.

ProjectPlanning range
500 sq ft, basic$38,500 to $52,000
800 sq ft, mid-range$83,500 to $111,500
1,000 sq ft with a full bathroom$118,500 to $158,500
1,500 sq ft, high-end, with a bathroom and an egress window$228,000 to $304,500
Before you budget

What Raises or Lowers a Basement Finishing Estimate

A planning range assumes the house is sound and the ground is easy. These are the things that move a real basement finishing estimate up or down.

  • Water.Dampness or a known leak gets dealt with first, because nothing finished survives it.
  • Ceiling height and the mechanicals.Ducts and pipes that can be boxed in cost far less than ones that have to move.
  • How far a bathroom sits from the drain.Below the sewer line, a pump has to lift the waste up to it.
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Before you begin

Basement Finishing Cost Questions

If your question is not answered here, ask our team. A ten minute conversation now is better than a surprise halfway through the project.

Ask Our Team
How much does it cost to finish a basement in Knoxville?

It depends on the area being finished, the finish level and whether a bathroom or egress windows go in. The table above shows typical ranges, and the estimator gives you one for your own basement.

How much does it cost to add a bathroom to a basement?

The estimator prices a half and a full bathroom as options. The distance to the drain matters most: below the sewer line, a pump has to lift the waste up to it.

Do I need an egress window?

If any room down there will be used as a bedroom, yes. It needs a window or a door large enough to get out through, and the estimator lets you add one or two.

How much does it cost to add a basement to a house?

That is a different project from finishing one. Digging a basement under an existing house is structural work, engineered and priced on its own. This estimator covers finishing a basement you already have.

Should water problems be fixed first?

Always. Nothing finished survives water, so dampness or a known leak gets dealt with before any framing goes up.

What does basement finishing cost per square foot?

It depends most on the finish level. The estimator works per square foot of finished space, then adds a bathroom, egress windows and anything else you choose.

How much does it cost to finish a basement with a bathroom?

The table above shows a 1,000 square foot basement with a full bathroom. The bathroom is often the largest single addition, especially when a pump is needed to reach the sewer line.

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Turn a Range Into a Written Estimate

Share your project location and what you are considering. We will visit, measure and put a real figure in writing.

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