Deck / Patio Permit Requirements in Rockville, MD
Maryland uses MIBC (Maryland International Building Code) based on 2018 ICC codes
When you DON'T need a permit
Freestanding decks not exceeding 30 inches above grade do not require a building permit in Rockville, MD.
Source: Maryland Building Performance Standards
When you DO need a permit
Attached decks require a building permit in Rockville, MD due to structural connection to the home.
Estimated fee: $90 – $360
Typical timeline: About 2 weeks
Source: Maryland Building Performance Standards
Decks more than 30 inches above grade require a building permit in Rockville, MD. Structural plans and guard rails required.
Estimated fee: $135 – $540
Typical timeline: About 3 weeks
Source: Maryland Building Performance Standards
Large covered decks (300+ sq ft) require building and zoning permits in Rockville, MD.
Estimated fee: $225 – $720
Typical timeline: About 4 weeks
Source: Maryland Building Performance Standards
Decks may be subject to zoning setback and lot coverage requirements. Check with your local planning department before building near property lines.
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Frequently Asked Questions
Estimated permit fees for Deck / Patio projects in Rockville, MD range from $90 – $360. Fees vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Deck / Patio projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit in Rockville can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Deck / Patio permits in Rockville is About 2 weeks. More complex projects may take longer if plan review is required.
Learn More About Deck / Patio Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
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