Basement Finishing Cost in Silver Spring, MD
Based on 291 basement finishing building permits filed in Silver Spring between 2015 and 2026, the typical declared project value is $25,000, with most landing between $15,500 and $42,045. These are real records from Silver Spring's public building-permit data, declared job values, not contractor estimates or AI guesses.
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Basement Finishing values over time in Silver Spring
Median declared value moved from $20,000 in 2020 to $22,500 in 2025, up 12% over that span. Each year below is computed from the filings that actually cleared in Silver Spring.
Recent basement finishing permits in Silver Spring
Actual filings from Silver Spring's public permit records. Declared job values, not final paid prices.
| Filed | Declared value | Work described |
|---|---|---|
| 2026-06-09 | $12,000 | Build full bathroom (vanity, toilet, shower) in finished basement of existing single famil |
| 2026-06-03 | $50,000 | Interior work only, INTERIOR ALTERATION & REPAIR WITHOUT STRUCTURAL ALTERATIONS INCLUD |
| 2026-03-12 | $100,000 | Finish existing basement with unfinished area remaining as shown. Install bathroom at roug |
| 2026-03-02 | $50,000 | Customer Wants To Use ePlans Interior work only, NOT APPROVED FOR ADU - AN INTERIOR RENOVA |
| 2026-02-17 | $20,000 | FINISH BASEMENT WITH 2 BEDROOMS AND 1 BATH AND FRONT PORCH ROOF.720 SQ FT BASEMENT24 SQ F |
| 2025-12-17 | $8,600 | Interior work only,Finished basement with open ceiling, half bathroom, mechanical ro |
| 2025-12-04 | $25,000 | FINISHING THE BASEMENT. |
| 2025-11-14 | $10,000 | Interior work only,Installation of Egress window to finished basement |
| 2025-10-28 | $10,000 | Interior alteration & repair without structural alterations include the following: fin |
| 2025-10-01 | $20,000 | Interior work only,We are doing an unfinished basement, we are doing a kitchenette area, a |
| 2025-09-05 | $54,000 | Proposed rear addition with 2 bedrooms and 2 full bathrooms, it addition at first floor wi |
| 2025-08-18 | $8,000 | Customer Wants To Use ePlans Interior work only,Build two 6ft long x 8ft Height walls at 9 |
| 2025-08-18 | $10,000 | Demolish all interior components and renovate existing 1st floor full bathroom and kitchen |
| 2025-08-14 | $15,000 | Customer Wants To Use ePlans Interior work only,Finish basement to create an office, clos |
| 2025-08-11 | $25,000 | Interior work only, Dig down of the existing basement slab 8"" deeper for an unfinished ba |
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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 Silver Spring comes down to home size, materials, and scope.
Where this comes from
Every figure is pulled from Silver Spring's public building-permit records and classified by the work described. Nothing is estimated or AI-generated. How the data works. The moment a Silver Spring homeowner adds a real receipt, this page upgrades to show what neighbors actually paid next to these permit values.
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