Addition Pros for Home Addition in Knoxville Metro Area.
A mid-range home addition across the Knoxville Metro Area typically runs $16,868 at completion and returns $12,013 at resale — a 71.2% ROI according to 2025 Cost vs. Value data for the Knoxville Metro Area market.
The Knoxville Metro Area's 932,241-resident market — median household income $60,000-$74,999 — sustains one of the Midwest's most active demand pools for this work.
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What Does Home Addition Return in Knoxville Metro Area?
Mid-range cost and resale data for the Knoxville Metro Area market, from the 2025 Remodeling Cost vs. Value report.
| Project type | Mid-Range Cost | Resale Value | ROI |
|---|---|---|---|
| Deck Addition | Wood | $16,868 | $12,013 | 71% |
| Bathroom Addition | Midrange | $54,032 | $31,938 | 59% |
| Deck Addition | Composite | $23,692 | $10,984 | 46% |
| Bathroom Addition | Upscale | $100,404 | $42,522 | 42% |
| Primary Suite Addition | Midrange | $150,285 | $54,161 | 36% |
| Primary Suite Addition | Upscale | $308,579 | $67,081 | 22% |
Source: Remodeling Magazine 2025 Cost vs. Value. Mid-range tier. ROI = resale value ÷ project cost × 100.
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