# Building permits in Montgomery County 21771

1 permit in the last 90 days. The newest, Aug 13: Installation of 26 roof-mounted solar panels and all components, at 28924 Ridge Rd.

| Date | Address | Type | Work | Cost | Permit |
|---|---|---|---|---|---|
| Aug 13, 2026 | [28924 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/28924-ridge-rd/) | Solar | Installation of 26 roof-mounted solar panels and all components | $26,550 | [1165082](https://nearbypermits.com/montgomery-county-md/permit/1165082/) |
| Apr 24, 2026 | [29007 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/29007-ridge-rd/) | Alteration or repair | Interior work only,Remodeling of existing hall bathroom and addition of new master bathroom and small closet in Master bedroom. Replace kitchen cabinets. Expansion of existing deck. Restoration of basement office and rec room and new casement window in storage area.Mixed work type permit: ALT 600 sq | $78,600 | [1153512](https://nearbypermits.com/montgomery-county-md/permit/1153512/) |
| Jan 16, 2026 | [9265 Brown Church Rd](https://nearbypermits.com/montgomery-county-md/address/9265-brown-church-rd/) | Other | At&t proposes to install 12'-0""x16'-0"" concrete pad 2. Install steel wuc 3. Install 30kw diesel generator 4. Install heavy duty antenna platform 5. Install (9) antennas 6. Install (9) rrhs 7. Install (3) dc9-48-60-24-8c-ev 8. Install (3) fiber and (9) dc bundles 9. Install components supporting an | $105,000 | [1134694](https://nearbypermits.com/montgomery-county-md/permit/1134694/) |
| Dec 5, 2025 | [26430 Mullinix Mill Rd](https://nearbypermits.com/montgomery-county-md/address/26430-mullinix-mill-rd/) | Other | On existing monopole, AT&T plans to remove 6 antennas and 12 radios. Install 3 antennas and 9 radios. There will be no structure height increase and no ground disturbance. | $38,000 | [1134443](https://nearbypermits.com/montgomery-county-md/permit/1134443/) |
| Sep 2, 2025 | [9215 Brown Church Rd](https://nearbypermits.com/montgomery-county-md/address/9215-brown-church-rd/) | Alteration or repair | Modify one floor platform to install a Stiltz Duo Alta home lift, 2 stop | $6,000 | [1130006](https://nearbypermits.com/montgomery-county-md/permit/1130006/) |
| Jul 23, 2025 | [9215 Brown Church Rd](https://nearbypermits.com/montgomery-county-md/address/9215-brown-church-rd/) | Addition | New work includes New kitchen Area which is 280sf; new 3 season room (screened Porch) which is 270sf and decking system which is 640sf. New Kitchen includes concrete foundation wall and wood frame construction with fiberglass shingles. New 3 season room MIXED WORK TYPE: ADD 660sf, ALT 300sf, DECK 67 | $125,000 | [1108778](https://nearbypermits.com/montgomery-county-md/permit/1108778/) |
| Apr 29, 2025 | [29010 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/29010-ridge-rd/) | Solar | Install 50 panel 21.75kW solar PV system on roof of pole barn | $50,000 | [1111329](https://nearbypermits.com/montgomery-county-md/permit/1111329/) |
| Jan 31, 2025 | [29210 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/29210-ridge-rd/) | Alteration or repair | Install basement water management and stabilize existing foundation with push piers. | $14,700 | [1096947](https://nearbypermits.com/montgomery-county-md/permit/1096947/) |
| Jan 14, 2025 | [26430 Mullinix Mill Rd](https://nearbypermits.com/montgomery-county-md/address/26430-mullinix-mill-rd/) | Other | T-Mobile proposes to extend the tower by 10, install new equipment, upgrade ancillary equipment. Antennas must be mounted in an antenna enclosure the same color or design as the building. | $90,000 | [1084740](https://nearbypermits.com/montgomery-county-md/permit/1084740/) |

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Source: Montgomery County Department of Permitting Services permit data (https://data.montgomerycountymd.gov/d/m88u-pqki). Checked 2026-10-07 20:12 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map and full list of the one permit in Montgomery County 21771 from the last 90 days: https://nearbypermits.com/montgomery-county-md/zip/21771/