Basement Finishing Cost in Rockville, MD
Based on 109 basement finishing building permits filed in Rockville between 2015 and 2026, the typical declared project value is $25,000, with most landing between $18,000 and $50,000. These are real records from Rockville's public building-permit data, declared job values, not contractor estimates or AI guesses.
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Basement Finishing values over time in Rockville
Median declared value moved from $24,250 in 2020 to $22,500 in 2025, down 7% over that span. Each year below is computed from the filings that actually cleared in Rockville.
Recent basement finishing permits in Rockville
Actual filings from Rockville's public permit records. Declared job values, not final paid prices.
| Filed | Declared value | Work described |
|---|---|---|
| 2026-02-11 | $42,500 | INTERIOR RENOVATIONS ON FIRST FLOOR Open Kitchen, Open Family Room area ENCLOSE CARPORT TO |
| 2026-01-14 | $60,000 | Interior work only,finish basement with one full bathroom. |
| 2026-01-08 | $100,000 | Interior work only, Finishing part of basement, Including a full bathroom. |
| 2025-12-26 | $20,000 | Customer Wants To Use ePlans,Finish basement to include rec area, gym, office, bathroom, w |
| 2025-12-24 | $25,000 | Revision 1 - Delated the Bedroom and Egress window. Modify walls layout,Customer Wants To |
| 2025-10-29 | $53,000 | Refinishing of an outdated existing finished basement. Work includes misc non-load bearing |
| 2025-10-03 | $60,000 | Interior work only,Finish unfinished basementcustomer states 400sf, 1310sf alter |
| 2025-08-14 | $12,500 | Customer Wants To Use ePlans, Adding new Kitchenette in unfinished basement In a |
| 2025-05-13 | $20,000 | Finish Basement to include Rec Area, Bedroom, Bathroom and Unfinished Storage and Mechanic |
| 2025-03-13 | $20,000 | Interior work only, Building a full bathroom in an unfinished basement space. |
| 2025-01-30 | $98,000 | Remodel existing finished basement. -Remodel existing first floor to include kitchen, powd |
| 2024-12-24 | $20,000 | Customer Wants To Use ePlans,Finish basement with Bathroom, Rec Area and Unfinished Storag |
| 2024-11-22 | $26,500 | Customer Wants To Use ePlans,FINISH BASEMENT AND ADD A NEW EGRESS WINDOW WELL. |
| 2024-11-06 | $40,000 | Customer Wants To Use ePlans Interior work only,Finish the basement, add three egress wind |
| 2024-09-20 | $75,000 | Customer Wants To Use ePlans,Project consists of finishing an existing unfinished basement |
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Add your price →How to read these numbers
A permit's declared value is the job cost the owner or contractor stated when they pulled the permit. It tracks the real cost of the work but can run a bit under what was actually paid, since it often leaves out some labor and finish costs. Treat the range as a grounded starting point. What basement finishing actually costs in Rockville comes down to home size, materials, and scope.
Where this comes from
Every figure is pulled from Rockville's public building-permit records and classified by the work described. Nothing is estimated or AI-generated. How the data works. The moment a Rockville homeowner adds a real receipt, this page upgrades to show what neighbors actually paid next to these permit values.
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