Addition Pros for Home Addition in Dayton.
A mid-range home addition across the Dayton 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 Dayton market.
The Dayton's 136,579-resident market — median household income $45,000-$49,999 — sustains one of the Midwest's most active demand pools for this work, and our verified pros cover all 21 ZIP codes — each cross-checked against OH license databases.

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What Does Home Addition Return in Dayton?
Mid-range cost and resale data for the Dayton market, from the 2025 Remodeling Cost vs. Value report.
| Project type | Mid-Range 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% |
| Primary Suite Addition | Midrange | $160,572 | $54,514 | 34% |
| Bathroom Addition | Upscale | $105,577 | $35,261 | 33% |
| Primary Suite Addition | Upscale | $329,084 | $65,028 | 20% |
Source: Remodeling Magazine 2025 Cost vs. Value. Mid-range tier. ROI = resale value ÷ project cost × 100.
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