# Building permits at 401 Circle Ave, Montgomery County, MD Three permits on record here. The newest, Feb 25, 2025: Installation of 19 SunPower 440-watt AC panels (8.36 kW) with integrated micro-inverters on residential. Within a quarter mile, the county has issued 6 more permits since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Feb 25, 2025 | Alteration or repair | Installation of 19 SunPower 440-watt AC panels (8.36 kW) with integrated micro-inverters on residential rooftop, flush | $28,720 | [1098079](https://nearbypermits.com/montgomery-county-md/permit/1098079/) | | Oct 31, 2013 | Addition | FRONT PORCH, DECK, & Alterations to 2nd Floor Revision 1/3/2014 adjusting the roof revision. | $100,000 | [649323](https://nearbypermits.com/montgomery-county-md/permit/649323/) | | Oct 10, 2013 | Fence, wall or deck | Montgomery county deck details | $600 | [651200](https://nearbypermits.com/montgomery-county-md/permit/651200/) | ## Within ¼ mi since May 1, 2026 6 permits in the circle. From our copy of the county's data (last 24 months). ### Next door (under 250 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jun 26, 2026 | [404 Circle Ave](https://nearbypermits.com/montgomery-county-md/address/404-circle-ave/) | 170 ft NE | Alteration or repair | Revision 1 - revision-scope of work to remain the same. The panel layout is changing due to a vent being moved.,customer wants to use eplanscustomer wants to use eplans,install (18) roof mounted solar panels, 7.920 kw | $18,000 | [1162553](https://nearbypermits.com/montgomery-county-md/permit/1162553/) | ### This block (250 to 1,000 ft), 4 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 25, 2026 | [6908 Prince Georges Ave](https://nearbypermits.com/montgomery-county-md/address/6908-prince-georges-ave/) | 980 ft NE | Fence, wall or deck | Construction of a freestanding, single-level ground-level deck adjacent to a low masonry wall., New Deck | $15,000 | [1171474](https://nearbypermits.com/montgomery-county-md/permit/1171474/) | | Sep 11, 2026 | [6718 Conway Ave](https://nearbypermits.com/montgomery-county-md/address/6718-conway-ave/) | 320 ft E | Solar | Install (13) roof mounted solar panels, 5.720 kw | $15,000 | [1170648](https://nearbypermits.com/montgomery-county-md/permit/1170648/) | | Aug 28, 2026 | [411 Elm Ave](https://nearbypermits.com/montgomery-county-md/address/411-elm-ave/) | 610 ft NW | Solar | Install (12) roof mounted solar panels, 5.280 kw one back-up intergrated battery, 13.5 kwh | $21,000 | [1169158](https://nearbypermits.com/montgomery-county-md/permit/1169158/) | | Jun 23, 2026 | [6612 Poplar Ave](https://nearbypermits.com/montgomery-county-md/address/6612-poplar-ave/) | 780 ft S | Solar | Rooftop solar installation 16 435w panels. Roof repair or replacement as needed | $6,960 | [1156967](https://nearbypermits.com/montgomery-county-md/permit/1156967/) | ### Farther (1,000 ft to ¼ mi), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Aug 21, 2026 | [210 Spring Ave](https://nearbypermits.com/montgomery-county-md/address/210-spring-ave/) | 0.21 mi W | Alteration or repair | Remove and reconstruct the existing front porch in kind in accordance with the Architect's signed drawings. Construct a cast-in-place concrete stoop at the existing rear entrance. | $3,000 | [1164959](https://nearbypermits.com/montgomery-county-md/permit/1164959/) | ## Zoning requests nearby We don't list zoning cases for Montgomery County yet. Look them up on the county's Board of Appeals page: https://www.montgomerycountymd.gov/board-appeals ## More on this street Other addresses on Circle Ave with permits, nearest house number first: - [404 Circle Ave](https://nearbypermits.com/montgomery-county-md/address/404-circle-ave/): newest permit Jun 26, 2026 --- Source: Montgomery County Department of Permitting Services permit data (https://data.montgomerycountymd.gov/d/m88u-pqki). Checked 2026-10-15 23:01 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, all 3 permits at this address and 6 nearby: https://nearbypermits.com/montgomery-county-md/address/401-circle-ave/