Housing units authorized by building permits each month in Montgomery, Greene, Miami and Warren counties, with this year to date.
Montgomery County: 79 in September 2026. Change from August 2026: +21.5%. From a year earlier: −16.0%.
Montgomery County, 2026 year to date: 993 housing units permitted through September, vs. 847 through September 2025 (+17.2%).
Next update: October 2026 figures, expected around Nov 25, 2026.
What this means
The Montgomery County figure, 79, was 16.0% lower than in September 2025 (94). Among the 4 areas on this page, Montgomery County is the highest.
How Montgomery compares
| Montgomery County | 79 | |
|---|---|---|
| Warren County | 60 | |
| Miami County | 42 | |
| Greene County | 17 |
| September 2026 | September 2025 | Change | |
|---|---|---|---|
| Montgomery County | 79 | 94 | −16.0% |
| Warren County | 60 | 410 | −85.4% |
| Greene County | 17 | 42 | −59.5% |
| Miami County | 42 | 30 | +40.0% |
By city and township, 2026 year to date
| # | Place | Houses (1 unit) | 2–4 units | 5+ units | Total, Jan.–Sep. 2026 | Same months 2025 |
|---|---|---|---|---|---|---|
| 1 | Dayton Montgomery Co. | 100 | 2 | 260 | 362 | 149 |
| 2 | Centerville Montgomery Co. | 7 | 8 | 193 | 208 | 241 |
| 3 | Mason Warren Co. | 140 | 0 | 0 | 140 | 92 |
| 4 | Xenia Greene Co. | 109 | 6 | 0 | 115 | 110 |
| 5 | Springboro Warren Co. | 92 | 0 | 0 | 92 | 58 |
| 6 | Miamisburg Montgomery Co. | 60 | 2 | 0 | 62 | 85 |
| 7 | Lebanon Warren Co. | 25 | 0 | 20 | 45 | 250 |
| 8 | Fairborn Greene Co. | 33 | 0 | 6 | 39 | 40 |
| 9 | Yellow Springs Greene Co. | 19 | 0 | 0 | 19 | 6 |
| 10 | Vandalia Montgomery Co. | 13 | 2 | 0 | 15 | 10 |
| 11 | Englewood Montgomery Co. | 7 | 3 | 0 | 10 | 0 |
| 12 | Kettering Montgomery Co. | 7 | 0 | 0 | 7 | 10 |
| 13 | Carlisle Warren Co. | 5 | 0 | 0 | 5 | 22 |
| 14 | Germantown Montgomery Co. | 4 | 0 | 0 | 4 | 3 |
| 15 | Union Montgomery Co. | 3 | 0 | 0 | 3 | 2 |
| 16 | Franklin Warren Co. | 1 | 0 | 0 | 1 | 1 |
| 17 | Harveysburg Warren Co. | 0 | 0 | 0 | 0 | 2 |
Places that issue building permits and report to the Census Bureau each month, in Montgomery, Greene, Miami and Warren counties. Places that report only once a year aren't listed until the annual figures come out; "not reported" means no monthly report for those months last year.
Common questions
What is the latest figure for new homes permitted, by month in Montgomery?
Montgomery County: 79 in September 2026, from the U.S. Census Bureau.
How has the figure for new homes permitted, by month in Montgomery changed over the past year?
It was 79 in September 2026, against 94 in September 2025 (−16.0%).
How often is the figure for new homes permitted, by month updated?
Monthly, from the U.S. Census Bureau. Next update: October 2026 figures, expected around Nov 25, 2026.
Related data
- Mortgage payment as a share of income
- Homes bought by companies
- Homes bought by out-of-state owners
- Homeownership rate
- Home buyers under 35
About this data
New privately owned housing units authorized by building permits each month, from the Census Bureau's Building Permits Survey: houses count one unit each and apartment buildings count every unit. County totals include the Census Bureau's estimates for places that report only once a year; the city and township table lists places that report monthly. A permit is not a finished home, and some are never built. The latest months are revised when the annual figures come out.
Source: U.S. Census Bureau, Building Permits Survey, monthly county and place files. Updated November 5, 2026, monthly. Download the data (CSV).