# Addition permit 1166098 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: Sep 16, 2026
- Type of work: Addition (city: Add, single family dwelling)
- Status: Issued (city: Issued)
- Reported cost: $450,000
- ZIP code: 20815
- All permits at this address: https://nearbypermits.com/montgomery-county-md/address/3713-underwood-st/

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Source: Montgomery County Department of Permitting Services permit data (https://data.montgomerycountymd.gov/d/m88u-pqki). Checked 2026-10-08 11:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3713 Underwood St: https://nearbypermits.com/montgomery-county-md/address/3713-underwood-st/