Finish existing unfinished basement and add addition to rear of existing home.HAWP-1149140
Addition at 3713 Underwood St, Montgomery County
Montgomery County Department of Permitting Services permit 1166098: issued Sep 16, 2026 for addition work at 3713 Underwood St. Finish existing unfinished basement and add addition to rear of existing home.HAWP-1149140. No retaining walls included in the Zoning Review. NEW-640-sqft, ALTER-1,400-sqft.
- Permit number
- 1166098
- Issued
- Type of work
- Addition
- Status
- Issued
- Reported cost
- $450,000
- ZIP code
- 20815
- City's category
- Add, single family dwelling
- City's status
- Issued
- Source
- Montgomery County Department of Permitting Services permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 3713 Underwood St, and what's permitted nearby
Montgomery County Department of Permitting Services updated its data Oct 7, 2026. We checked it Oct 8, 00:31 UTC. See the county's official records.
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