Home Addition
in Madison.
Average ROI at resale · Madison · $23,918 in, $21,143 out
A mid-range home addition across the Madison typically runs $23,918 at completion and returns $21,143 at resale, a 88.4% ROI according to 2025 Cost vs. Value data for the Madison market.
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FreeWhat Home Addition Returns in Madison
Mid-range cost and resale value from the 2025 Remodeling Cost vs. Value report.
| Project | Cost | Resale Value | ROI |
|---|---|---|---|
| Deck Addition | Wood | $18,090 | $16,733 | 93% |
| Deck Addition | Composite | $23,918 | $21,143 | 88% |
| Bathroom Addition | Midrange | $57,427 | $30,613 | 53% |
| Bathroom Addition | Upscale | $105,577 | $35,261 | 33% |
Source: Remodeling Magazine 2025 Cost vs. Value. Mid-range tier.
Madison Market
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Nearby areas: Madison