# Building permits in Montgomery County 20866

21 permits in the last 90 days. The newest, Oct 6: Construct a 12' x 20' deck per county typicals,new deck, at 13953 Carthage Cir.

| Date | Address | Type | Work | Cost | Permit |
|---|---|---|---|---|---|
| Oct 6, 2026 | [13953 Carthage Cir](https://nearbypermits.com/montgomery-county-md/address/13953-carthage-cir/) | Fence, wall or deck | Construct a 12' x 20' deck per county typicals,new deck | $33,000 | [1173754](https://nearbypermits.com/montgomery-county-md/permit/1173754/) |
| Oct 5, 2026 | [15022 Athey Rd](https://nearbypermits.com/montgomery-county-md/address/15022-athey-rd/) | Alteration or repair | remove brick chimney to above roof line, leaving portion from foundation to 7-8 foot high | $6,000 | [1168107](https://nearbypermits.com/montgomery-county-md/permit/1168107/) |
| Oct 2, 2026 | [15114 Mcknew Rd](https://nearbypermits.com/montgomery-county-md/address/15114-mcknew-rd/) | Solar | Reinstall existing (59) roof mounted 15.34 KW PV solar panels in kind. No structural changes to occur. | $4,720 | [1172260](https://nearbypermits.com/montgomery-county-md/permit/1172260/) |
| Sep 21, 2026 | [14503 Perrywood Dr](https://nearbypermits.com/montgomery-county-md/address/14503-perrywood-dr/) | Alteration or repair | Enlarge and remodel the existing first floor bathroom and closet. | $25,000 | [1170439](https://nearbypermits.com/montgomery-county-md/permit/1170439/) |
| Sep 21, 2026 | [4321 Isleswood Ter](https://nearbypermits.com/montgomery-county-md/address/4321-isleswood-ter/) | Solar | Remove all existing roof mounted solar panels, then install 21 replacement solar panels | $499 | [1169815](https://nearbypermits.com/montgomery-county-md/permit/1169815/) |
| Sep 21, 2026 | [4244 Dunwood Ter](https://nearbypermits.com/montgomery-county-md/address/4244-dunwood-ter/) | Solar | Temporary removal and reinstallation of 18 roof-mounted solar panels | $499 | [1167514](https://nearbypermits.com/montgomery-county-md/permit/1167514/) |
| Sep 4, 2026 | [3012 Miles Rd](https://nearbypermits.com/montgomery-county-md/address/3012-miles-rd/) | Alteration or repair | Restore and Repair areas within the main structure damaged by fire.Mixed work type permit: ALTER 1700 square feet / ADD 220 square feet / DECK 185 square feet [PT]. | $250,000 | [1155908](https://nearbypermits.com/montgomery-county-md/permit/1155908/) |
| Sep 1, 2026 | [3227 Hollyhock Dr](https://nearbypermits.com/montgomery-county-md/address/3227-hollyhock-dr/) | Solar | 33 roof mounted solar panels with Installation of 200A Backup Gateway for Energy Storage System, Service Conductor Refeed | $28,215 | [1170118](https://nearbypermits.com/montgomery-county-md/permit/1170118/) |
| Sep 1, 2026 | [15001 Athey Rd](https://nearbypermits.com/montgomery-county-md/address/15001-athey-rd/) | Alteration or repair | Interior alterations to existing kitchen and dining area. Remove existing kitchen and interior non load bearing wall on the first floor. Remove existing rear windows and install one new window with existing header. Install new kitchen and new appliances. | $55,000 | [1169911](https://nearbypermits.com/montgomery-county-md/permit/1169911/) |
| Aug 31, 2026 | [15225 Briarcliff Manor Way](https://nearbypermits.com/montgomery-county-md/address/15225-briarcliff-manor-way/) | Solar | 58 roof mounted solar panels with Installation of 200A Backup Gateway for Energy Storage System, Service Conductor Refeed | $49,590 | [1169949](https://nearbypermits.com/montgomery-county-md/permit/1169949/) |
| Aug 26, 2026 | [2806 Duvall Rd](https://nearbypermits.com/montgomery-county-md/address/2806-duvall-rd/) | Fence, wall or deck | New shed in back yard,New Shed | $3,000 | [1168408](https://nearbypermits.com/montgomery-county-md/permit/1168408/) |
| Aug 24, 2026 | [4245 Dunwood Ter](https://nearbypermits.com/montgomery-county-md/address/4245-dunwood-ter/) | Solar | Installation of (18) roof-mounted solar panels 8.10kw | $5,000 | [1169282](https://nearbypermits.com/montgomery-county-md/permit/1169282/) |
| Aug 11, 2026 | [15815 Oursler Rd](https://nearbypermits.com/montgomery-county-md/address/15815-oursler-rd/) | Alteration or repair | Interior work only,existing ADU in basement did not know a permit was needed, THIS IS AN ACCESSORY DWELLING UNIT (ADU). | $2,000 | [1164612](https://nearbypermits.com/montgomery-county-md/permit/1164612/) |
| Aug 10, 2026 | [14915 Falconwood Dr](https://nearbypermits.com/montgomery-county-md/address/14915-falconwood-dr/) | Solar | Sfd/ install 22 roof mounted solar panels. System size 9.68kw | $27,000 | [1167796](https://nearbypermits.com/montgomery-county-md/permit/1167796/) |
| Aug 7, 2026 | [3928 Greencastle Rd](https://nearbypermits.com/montgomery-county-md/address/3928-greencastle-rd/) | Fence, wall or deck | Installing approximately 170LF of fence. Of the 170LF, 80LF will be 20ft high, the rest will be 8ft SEE RETAINING WALL PERMIT COMBUILD-1149513 | Not listed | [1160419](https://nearbypermits.com/montgomery-county-md/permit/1160419/) |
| Aug 6, 2026 | [15310 Briarcliff Manor Way](https://nearbypermits.com/montgomery-county-md/address/15310-briarcliff-manor-way/) | Fence, wall or deck | New single level deck built in rear of home,New Deck | $38,000 | [1167413](https://nearbypermits.com/montgomery-county-md/permit/1167413/) |
| Jul 30, 2026 | [15420 Old Columbia Pike](https://nearbypermits.com/montgomery-county-md/address/15420-old-columbia-pike/) | Alteration or repair | Scope of work includes fit-out of existing tenant space to accommodate a retail space. The scope of work includes alterations of existing bathroom to comply with current codes, partial replacement of lighting fixtures, and re-routing of ductwork. | $20,000 | [1145198](https://nearbypermits.com/montgomery-county-md/permit/1145198/) |
| Jul 24, 2026 | [14314 Bentley Park Dr](https://nearbypermits.com/montgomery-county-md/address/14314-bentley-park-dr/) | Alteration or repair | Installation of 16 Q-Cells 430-watt AC panels (6.68 kW) with integrated micro-inverters on residential rooftop, flush. | $28,350 | [1164150](https://nearbypermits.com/montgomery-county-md/permit/1164150/) |
| Jul 17, 2026 | [15311 Briarcliff Manor Way](https://nearbypermits.com/montgomery-county-md/address/15311-briarcliff-manor-way/) | Fence, wall or deck | We are building a 995 sq ft paver patio out of concrete pavers with a level of base material | $20,000 | [1156594](https://nearbypermits.com/montgomery-county-md/permit/1156594/) |
| Jul 16, 2026 | [3919 Bryant Park Cir](https://nearbypermits.com/montgomery-county-md/address/3919-bryant-park-cir/) | Alteration or repair | Restoration due to fire - deck repair, exterior repairs in-kind | $60,000 | [1163882](https://nearbypermits.com/montgomery-county-md/permit/1163882/) |
| Jul 16, 2026 | [4236 Red Maple Ct](https://nearbypermits.com/montgomery-county-md/address/4236-red-maple-ct/) | Fence, wall or deck | Construct: Deck: 13?feet by 13?feet, 169-sqft.Using M.C. Deck Details - IRC-2021. | $9,500 | [1148219](https://nearbypermits.com/montgomery-county-md/permit/1148219/) |
| Jul 7, 2026 | [3928 Greencastle Rd](https://nearbypermits.com/montgomery-county-md/address/3928-greencastle-rd/) | Fence, wall or deck | To construct 1 commercial retaining wall using Magnumstone block. Approx. dimensions: 174 LF x max height 9 feet; Total sf of wall face: 1,093. | $110,675 | [1149513](https://nearbypermits.com/montgomery-county-md/permit/1149513/) |
| Jul 7, 2026 | [15202 Dino Dr](https://nearbypermits.com/montgomery-county-md/address/15202-dino-dr/) | Alteration or repair | Interior renovation to accommodate a worship space inside an existing building. | $140,000 | [1148281](https://nearbypermits.com/montgomery-county-md/permit/1148281/) |
| Jul 1, 2026 | [4219 Cedar Tree Ln](https://nearbypermits.com/montgomery-county-md/address/4219-cedar-tree-ln/) | Solar | installation of 17.2kw (40) roof-mounted solar modules on existing SFD | $16,000 | [1162860](https://nearbypermits.com/montgomery-county-md/permit/1162860/) |
| Jun 30, 2026 | [4323 Isleswood Ter](https://nearbypermits.com/montgomery-county-md/address/4323-isleswood-ter/) | Solar | Installation of 9.68kw (22) roof-mounted solar modules on existing SFD | $8,000 | [1162782](https://nearbypermits.com/montgomery-county-md/permit/1162782/) |

More: https://nearbypermits.com/montgomery-county-md/zip/20866/?page=2

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Source: Montgomery County Department of Permitting Services permit data (https://data.montgomerycountymd.gov/d/m88u-pqki). Checked 2026-10-07 20:38 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map and full list of the 21 permits in Montgomery County 20866 from the last 90 days: https://nearbypermits.com/montgomery-county-md/zip/20866/