# Building permits in Montgomery County 20852

77 permits in the last 90 days. The newest, Oct 5: Conversion of the existing attic space into a primary suite within a new vertical addition, at 12005 Old Bridge Rd.

| Date | Address | Type | Work | Cost | Permit |
|---|---|---|---|---|---|
| Oct 5, 2026 | [12005 Old Bridge Rd](https://nearbypermits.com/montgomery-county-md/address/12005-old-bridge-rd/) | Addition | Conversion of the existing attic space into a primary suite within a new vertical addition. Renovation consists of construction of a new primary bedroom, primary bathroom, walk-in closet, and entry hall. No changes to the existing building footprint. | $349,287 | [1171070](https://nearbypermits.com/montgomery-county-md/permit/1171070/) |
| Oct 1, 2026 | [4713 Wyaconda Rd](https://nearbypermits.com/montgomery-county-md/address/4713-wyaconda-rd/) | Fence, wall or deck | Demo and rebuild of existing deck. Same footprint., Using Montgomery County Typical Deck Details | $17,780 | [1171333](https://nearbypermits.com/montgomery-county-md/permit/1171333/) |
| Sep 30, 2026 | [11002 Ralston Rd](https://nearbypermits.com/montgomery-county-md/address/11002-ralston-rd/) | Fence, wall or deck | Building a detached shed/gazebo that is 12'x16' off the patio in the back of the house. Far from property lines.,New Shed | $29,000 | [1172503](https://nearbypermits.com/montgomery-county-md/permit/1172503/) |
| Sep 30, 2026 | [11300 Creek Shore Pl](https://nearbypermits.com/montgomery-county-md/address/11300-creek-shore-pl/) | Solar | PV Solar panel installation roof mounted16 modules-roof mounted - 6.560 kw dc, 5.584 kw ac tdr required: upgrade the existing meter to a new 200a rated bus with a 150a main breaker utility meter/main service panel combo. | $14,603 | [1171744](https://nearbypermits.com/montgomery-county-md/permit/1171744/) |
| Sep 29, 2026 | [11800 Centaurus Pl](https://nearbypermits.com/montgomery-county-md/address/11800-centaurus-pl/) | New building | Polaris Square Lot 11 73CE Carina 01 refer to #1129780 | $337,100 | [1170533](https://nearbypermits.com/montgomery-county-md/permit/1170533/) |
| Sep 29, 2026 | [11802 Centaurus Pl](https://nearbypermits.com/montgomery-county-md/address/11802-centaurus-pl/) | New building | Polaris Square Lot 10 73CE Carina 02 refer to #1129780 | $337,100 | [1170531](https://nearbypermits.com/montgomery-county-md/permit/1170531/) |
| Sep 28, 2026 | [11507 Ashley Dr](https://nearbypermits.com/montgomery-county-md/address/11507-ashley-dr/) | Alteration or repair | Interior work only,Installation of 5 Push Piers. | $25,580 | [1172045](https://nearbypermits.com/montgomery-county-md/permit/1172045/) |
| Sep 28, 2026 | [10917 Roundtable Ct](https://nearbypermits.com/montgomery-county-md/address/10917-roundtable-ct/) | Alteration or repair | Adding first floor bath to existing single family dwelling. | $50,000 | [1171355](https://nearbypermits.com/montgomery-county-md/permit/1171355/) |
| Sep 28, 2026 | [11419 Schuylkill Rd](https://nearbypermits.com/montgomery-county-md/address/11419-schuylkill-rd/) | Solar | PV Solar panel installation roof mounted 31 modules-roof mounted - 12.710 kw dc, 10.819 kw ac | $45,501 | [1171045](https://nearbypermits.com/montgomery-county-md/permit/1171045/) |
| Sep 28, 2026 | [4816 Topping Rd](https://nearbypermits.com/montgomery-county-md/address/4816-topping-rd/) | Solar | PV Solar panel installation roof mounted 13 modules-roof mounted - 5.330 kw dc, 4.537 kw ac | $26,756 | [1171038](https://nearbypermits.com/montgomery-county-md/permit/1171038/) |
| Sep 28, 2026 | [11610 Old Georgetown Rd](https://nearbypermits.com/montgomery-county-md/address/11610-old-georgetown-rd/) | Alteration or repair | Interior work only,Facade renovation for an existing restaurant. No mechanical, structural, plumbing or electrical work. Architectural work ONLY. | $175,000 | [1169422](https://nearbypermits.com/montgomery-county-md/permit/1169422/) |
| Sep 25, 2026 | [11208 Rock Rd](https://nearbypermits.com/montgomery-county-md/address/11208-rock-rd/) | Solar | PV Solar panel installation roof mounted 15 modules-roof mounted - 6.150 kw dc, 5.235 kw ac tdr required: add a new 200a main breaker enclosure with a 150a main breaker | $26,199 | [1170923](https://nearbypermits.com/montgomery-county-md/permit/1170923/) |
| Sep 24, 2026 | [11114 Schuylkill Rd](https://nearbypermits.com/montgomery-county-md/address/11114-schuylkill-rd/) | Fence, wall or deck | Attached to screened 4-season room. 5' x 9' with 3'x3' landing and stair. 5' Height,new deckusing deck details | $4,000 | [1160552](https://nearbypermits.com/montgomery-county-md/permit/1160552/) |
| Sep 22, 2026 | [5550 Tuckerman Ln](https://nearbypermits.com/montgomery-county-md/address/5550-tuckerman-ln/) | Alteration or repair | Tear off all existing flat roofing (remove ballast rock for later use) and install new.060 non reinforced EPDM loose laid. Tear off shingles and install new IKO Cambridge 30-yr dimensional shingles. | $125,000 | [1168106](https://nearbypermits.com/montgomery-county-md/permit/1168106/) |
| Sep 22, 2026 | [6220 Mazwood Rd](https://nearbypermits.com/montgomery-county-md/address/6220-mazwood-rd/) | New building | Construction of New Single Family Dwelling.CONSTRUCT: 7239 SQ.FTPORCHES : 905 SQ. FT | $1,400,000 | [1158515](https://nearbypermits.com/montgomery-county-md/permit/1158515/) |
| Sep 21, 2026 | [11300 Rolling House Rd](https://nearbypermits.com/montgomery-county-md/address/11300-rolling-house-rd/) | Alteration or repair | Renovation of existing powder room. Relocate door to hallway. Replace existing fixtures. | $5,000 | [1171885](https://nearbypermits.com/montgomery-county-md/permit/1171885/) |
| Sep 18, 2026 | [6816 Breezewood Ter](https://nearbypermits.com/montgomery-county-md/address/6816-breezewood-ter/) | Fence, wall or deck | There is currently an existing deck that will be replaced by the new one. Same size, no stairs.,New Deck | $12,000 | [1162076](https://nearbypermits.com/montgomery-county-md/permit/1162076/) |
| Sep 15, 2026 | [11140 Rockville Pike](https://nearbypermits.com/montgomery-county-md/address/11140-rockville-pike/) | Roofing | Project is related to addressing isolated concrete and waterproofing repairs at the parking garage. | $1,326,972 | [1157572](https://nearbypermits.com/montgomery-county-md/permit/1157572/) |
| Sep 14, 2026 | [5254 Strathmore Ave](https://nearbypermits.com/montgomery-county-md/address/5254-strathmore-ave/) | Solar | Installation of a new, roof-mounted Solar photovoltaic electric system with 13 Solar Panels. | $6,000 | [1171235](https://nearbypermits.com/montgomery-county-md/permit/1171235/) |
| Sep 14, 2026 | [4616 Wilwyn Way](https://nearbypermits.com/montgomery-county-md/address/4616-wilwyn-way/) | Alteration or repair | Modifying existing ADU. | $1,500 | [1170145](https://nearbypermits.com/montgomery-county-md/permit/1170145/) |
| Sep 14, 2026 | [6312 Cetus Ln](https://nearbypermits.com/montgomery-county-md/address/6312-cetus-ln/) | New building | Lot 77 Polaris Square 73OE- ORION END refer to # 1144086 | $273,400 | [1168682](https://nearbypermits.com/montgomery-county-md/permit/1168682/) |
| Sep 14, 2026 | [6300 Cetus Ln](https://nearbypermits.com/montgomery-county-md/address/6300-cetus-ln/) | New building | Lot 72 Polaris Square -Townhouse Orion End 73OE refer to 1144086 | $273,400 | [1168451](https://nearbypermits.com/montgomery-county-md/permit/1168451/) |
| Sep 14, 2026 | [4806 Wilwyn Way](https://nearbypermits.com/montgomery-county-md/address/4806-wilwyn-way/) | Addition | New awning over existing stoop; no footprint expansion (PORCH COVERING) | $6,000 | [1163430](https://nearbypermits.com/montgomery-county-md/permit/1163430/) |
| Sep 14, 2026 | [11100 Stephalee Ln](https://nearbypermits.com/montgomery-county-md/address/11100-stephalee-ln/) | Addition | Add Great Room at the rear of the existing home. Add home office and restroom above existing dining and kitchen rooms. Add new roof above the office and Great Room. Add connecting stair between the office and the Great Room. Add basement storage room below the Great Room. Mixed work type - addition  | $250,000 | [1153889](https://nearbypermits.com/montgomery-county-md/permit/1153889/) |
| Sep 11, 2026 | [6308 Cetus Ln](https://nearbypermits.com/montgomery-county-md/address/6308-cetus-ln/) | New building | Lot 76 73ph-phoenix refer to 1126715. Associated use and occupnacy #425625. 8/17/20226 (RC) | $268,200 | [1168455](https://nearbypermits.com/montgomery-county-md/permit/1168455/) |

More: https://nearbypermits.com/montgomery-county-md/zip/20852/?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 18:43 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map and full list of the 77 permits in Montgomery County 20852 from the last 90 days: https://nearbypermits.com/montgomery-county-md/zip/20852/