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Shed Installation Permits in St. Mary's County, Maryland
Permit required
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Local Project Overview
Shed Installation · St. Mary's County, Maryland
Permit required
In Maryland, a Shed Installation requires a building permit.
The county raised its shed exemption threshold significantly through Ordinance 2017-36, approved October 17, 2017: a shed or detached accessory structure under 600 square feet is exempt from building code inspections, up from an earlier 120-square-foot figure, but a building permit itself is still required regardless of size. The permit can be issued "on-demand," meaning without a formal plan-review wait, specifically when the shed involves no plumbing installation and the property sits outside the county's Chesapeake Bay Critical Area; a $15 zoning permit is required separately from the building permit to confirm setback, Critical Area, stormwater, and forest conservation compliance regardless of the structure's size. Plans are reviewed under the St. Mary's County Department of Land Use & Growth Management code (IRC Maryland Building Pe); apply through Montgomery County Department of Permitting Services before work begins.
Source: St. Mary's County Department of Land Use & Growth Management, IRC Maryland Building Pe · County-specific · Verified 2026 by StateDataIndex
Permits for sheds often depend on square footage and whether the structure is permanent.
Code Compliance & Inspections
Work on your Shed Installation in St. Mary's County will be inspected to ensure full compliance with the current Maryland Building Performance Standards.
Zoning & Cost Factors
Maryland integrates local zoning with state-level "Smart Growth" initiatives, heavily restricting sprawl and protecting the Chesapeake Bay watershed. Fortunately, Maryland maintains relatively builder-friendly regulations, keeping base permit fees competitive.
Permit fees in St. Mary's County
Permit fees vary by jurisdiction and by your project's valuation, so there is no single fixed figure for St. Mary's County. We only publish fees confirmed by real homeowners — none have been reported here yet.
Confirm the current fee directly with Montgomery County Department of Permitting Services ((240) 777-0311). If you have paid for a permit here, you can add it here to help others.
St. Mary's County Building Department
Office: Montgomery County Department of Permitting Services
Address: 2425 Reedie Dr 7th floor, Wheaton, MD 20902, USA
Phone: (240) 777-0311
Source: official St. Mary's County government records. Hours and procedures can change — call ahead to confirm.
How to Apply in St. Mary's County
In St. Mary's County, you can begin your application online through the county's permit portal, or submit blueprints and a property survey in person. Including your contractor's Maryland Home Improvement Commission (MHIC) license number helps avoid rejections.
Shed Installation Requirements in St. Mary's County
Typical Submittal Package
When applying for a Shed Installation permit, you or your contractor will generally need to submit the following documentation for the city's review:
- Site plan showing exact property setbacks
- Foundation or anchoring details
- Shed dimensions or manufacturer brochure
Standard Ordinances & Processing Time
Key code points for a Shed Installation in St. Mary's County: Accessory structures under 120 or 200 square feet often bypass building permits, but almost always require a zoning permit to ensure they are not built too close to the property line.
Typical processing time: a few days to several weeks, depending on current workload and the season. Contact Montgomery County Department of Permitting Services for a current estimate.
Frequently Asked Questions
What happens if I build a Shed Installation without a permit in St. Mary's County?
Building without authorization is considered a code violation. The local government can issue a Stop Work Order, forcing you to halt construction immediately. You may be subject to retroactive permit fees (often double the original cost), daily fines, or even a mandate to tear down the unpermitted work at your own expense.
Can a homeowner pull their own Shed Installation permit in Maryland?
Yes. Maryland generally allows property owners to act as their own general contractor under an Owner-Builder exemption. If you take this route, you assume full legal and financial liability and must ensure all work complies with the Maryland Building Performance Standards.
How much does a Shed Installation permit cost in St. Mary's County?
Permit fees vary by jurisdiction and by your project's valuation, so St. Mary's County does not publish a single fixed figure. Confirm the exact fee with the local building department before applying.
How long does it take to get a Shed Installation permit in St. Mary's County?
Processing time in St. Mary's County varies by season and current application volume at the building department; contact Montgomery County Department of Permitting Services for a current estimate.
Where do I apply for a Shed Installation permit in St. Mary's County?
You can apply through the Montgomery County Department of Permitting Services or online via the county permit portal. For questions, call (240) 777-0311.
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Other Permit Types in St. Mary's County
Planning another home improvement project? Check the requirements and fees for:
Nearby Jurisdictions in Maryland
Building near the county line? Check requirements for neighboring areas: