Washington DC Deck Permits 2026
Washington DC deck permit fees, plan review, and required inspections for 2026.
Washington DC Deck permit basics
- Building department: DC Department of Buildings (DOB)
- Department URL: https://dob.dc.gov
- Permit fee typical: $100 - $500 permit fee
- Plan review + approval: 10-25 business days
- Inspections required: 2-3 inspections (footing, framing, final)
Washington DC Deck common issues
Footing depth (frost line dependent), railing height (36" residential / 42" commercial), guard spacing (4" max).
Washington DC-specific permitting context
DC DOB and DCRA have strict historic preservation review (HPRB). License + basic business license required. DC has no state taxes but has its own sales tax (6%).
Climate factors: Humid subtropical; freeze-thaw cycles; historic preservation drives material choices
District of Columbia licensing for Deck contractors
DC Department of Consumer and Regulatory Affairs - required: $390 (basic business license). Board: https://dcra.dc.gov.
Mechanics lien deadline in District of Columbia: 90 days from completion. Preliminary notice: Not required.
Washington DC Deck sales tax
District of Columbia sales tax: 6% (no local addition). Real property labor not taxable; TPP repair labor is taxable.
Verify with the DC Office of Tax and Revenue.
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