# Building permits in Montgomery County 20880

0 permits in the last 90 days. The newest, Jun 5: New grid-interactive photovoltaic system with no battery storage, at 515 Washington Grove Ln.

| Date | Address | Type | Work | Cost | Permit |
|---|---|---|---|---|---|
| Jun 5, 2026 | [515 Washington Grove Ln](https://nearbypermits.com/montgomery-county-md/address/515-washington-grove-ln/) | Solar | New grid-interactive photovoltaic system with no battery storage; system size :14.960 kw; 34 panels | $47,076 | [1155299](https://nearbypermits.com/montgomery-county-md/permit/1155299/) |
| Jun 5, 2026 | [123 Washington Grove Ln](https://nearbypermits.com/montgomery-county-md/address/123-washington-grove-ln/) | Addition | approx. 220 sq ft screened in porch and approx. 324 sq ft deck per drawings [DECK: 324-sqft, BACK PORCH: 222-sqft, Total Add: 222-Sqft; ROTHG-FRI-JUL-11-2025] | $15,000 | [1121242](https://nearbypermits.com/montgomery-county-md/permit/1121242/) |
| May 13, 2026 | [17604 Silver Dollar Ct](https://nearbypermits.com/montgomery-county-md/address/17604-silver-dollar-ct/) | Solar | Temporary removal and reinstallation of 28 existing roof-mounted solar panels. | $499 | [1155709](https://nearbypermits.com/montgomery-county-md/permit/1155709/) |
| Mar 27, 2026 | [111 Grove Ave](https://nearbypermits.com/montgomery-county-md/address/111-grove-ave/) | Alteration or repair | Installation of 29 IntelliJacks, 6 Push Piers, and 138 LNFT Supplemental S4 Beam. | $83,796 | [1152390](https://nearbypermits.com/montgomery-county-md/permit/1152390/) |
| Mar 17, 2026 | [305 1st Ave](https://nearbypermits.com/montgomery-county-md/address/305-1st-ave/) | Alteration or repair | Encapsulate crawlspace and 108 LF of main beam replacement | $61,186 | [1140961](https://nearbypermits.com/montgomery-county-md/permit/1140961/) |
| Jan 27, 2026 | [416 Center St](https://nearbypermits.com/montgomery-county-md/address/416-center-st/) | Alteration or repair | Installation of 5 intellibraces. | $291,815 | [1146542](https://nearbypermits.com/montgomery-county-md/permit/1146542/) |
| Jan 16, 2026 | [110 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/110-ridge-rd/) | Addition | 315 sqft one story Family Room and Mudroom/Bath addition and 330 sqft partial interior renovation of existing first floor of residence. NEW HVAC COMPANYadd-314 alt-330deck-159 areaway-23 customer had 315 | $225,000 | [1121287](https://nearbypermits.com/montgomery-county-md/permit/1121287/) |
| Jan 2, 2026 | [107 Pine Ave](https://nearbypermits.com/montgomery-county-md/address/107-pine-ave/) | Solar | Install (48) roof-mounted solar panels for 19.68 kw | $45,000 | [1144763](https://nearbypermits.com/montgomery-county-md/permit/1144763/) |
| Dec 31, 2025 | [407 Acorn Ln](https://nearbypermits.com/montgomery-county-md/address/407-acorn-ln/) | Alteration or repair | Smart Jack Floor Supports & (23 LF) Steel Supplemental Beam | $7,595 | [1144174](https://nearbypermits.com/montgomery-county-md/permit/1144174/) |
| Dec 22, 2025 | [116 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/116-ridge-rd/) | Alteration or repair | Interior work only,Convert existing garage into finished accessory dwelling unit. No change to existing building height or footprint., This is an Accessory Dwelling Unit. | $200,000 | [1142642](https://nearbypermits.com/montgomery-county-md/permit/1142642/) |
| Oct 7, 2025 | [304 Chestnut Ave](https://nearbypermits.com/montgomery-county-md/address/304-chestnut-ave/) | Fence, wall or deck | Building a new deck, replace floor and rails on existing deck,New Deck | $60,474 | [1135234](https://nearbypermits.com/montgomery-county-md/permit/1135234/) |
| Aug 11, 2025 | [17046 Amity Dr](https://nearbypermits.com/montgomery-county-md/address/17046-amity-dr/) | Alteration or repair | Fire broke out between garage and first floor. Up to five joists need to be replaced. New hvac unit installed REQUIRES MECHANICAL PERMIT | $70,000 | [1128637](https://nearbypermits.com/montgomery-county-md/permit/1128637/) |
| Aug 5, 2025 | [119 Grove Ave](https://nearbypermits.com/montgomery-county-md/address/119-grove-ave/) | Alteration or repair | A tree feel on the house and the contractor is requesting a permit for repairs | $25,000 | [1121073](https://nearbypermits.com/montgomery-county-md/permit/1121073/) |
| Apr 17, 2025 | [407 5th Ave](https://nearbypermits.com/montgomery-county-md/address/407-5th-ave/) | Addition | Dormer addition at Second Floor existing residence and creation of New Bedroom #3. Interior renovation Second Floor Bathroom. Improvement of existing insulation. New Dormer size = 24 sqft Interior Renovation area = 137 sqft | $125,000 | [1110257](https://nearbypermits.com/montgomery-county-md/permit/1110257/) |
| Jan 16, 2025 | [122 Grove Ave](https://nearbypermits.com/montgomery-county-md/address/122-grove-ave/) | Fence, wall or deck | DECK: 20 x 16 deck with 2 sets of stairs approximately 32 high covering an existing patio,New Deck | $35,000 | [1096960](https://nearbypermits.com/montgomery-county-md/permit/1096960/) |
| Dec 20, 2024 | [328 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/328-ridge-rd/) | New building | Construct new SFD with 4 bedrooms, 3 1/2 baths and partial finished basement. | $669,677 | [1085249](https://nearbypermits.com/montgomery-county-md/permit/1085249/) |
| Nov 14, 2024 | [121 Maple Rd](https://nearbypermits.com/montgomery-county-md/address/121-maple-rd/) | Addition | New un-conditioned screened porch, attached to existing house. Existing house renovation was permitted under permit number #1064415300 PORCH 230 DECK | $40,000 | [1086225](https://nearbypermits.com/montgomery-county-md/permit/1086225/) |
| Oct 14, 2024 | [201 Washington Grove Ln](https://nearbypermits.com/montgomery-county-md/address/201-washington-grove-ln/) | Fence, wall or deck | New shed purchased from costco.com,New Shed | $1,000 | [1088354](https://nearbypermits.com/montgomery-county-md/permit/1088354/) |
| Oct 7, 2024 | [7916 Bounding Bend Ct](https://nearbypermits.com/montgomery-county-md/address/7916-bounding-bend-ct/) | Solar | Install (32) Roof Mounted Solar Panels. System Size 13.44kw | $32,000 | [1089187](https://nearbypermits.com/montgomery-county-md/permit/1089187/) |
| Oct 4, 2024 | [204 Ridge Rd](https://nearbypermits.com/montgomery-county-md/address/204-ridge-rd/) | Addition | This addition project comprises a new entryway to the house, a small laundry/bathroom area, a garden room and a studio. Plans are by a certified architect and signed by an engineer. Our proposed contractor is licensed in Maryland. 1258 new, 100 alteration | $240,000 | [1082360](https://nearbypermits.com/montgomery-county-md/permit/1082360/) |

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Source: Montgomery County Department of Permitting Services permit data (https://data.montgomerycountymd.gov/d/m88u-pqki). Checked 2026-10-07 08:35 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Map and full list of permits in Montgomery County 20880, newest first: https://nearbypermits.com/montgomery-county-md/zip/20880/