Maryland / Anne Arundel County
Deck Permit in Anne Arundel County, Maryland
It depends
Sometimes, depending on the project
Before building any attached deck, any deck in the critical area, or a detached deck over 200 sq ft or more than 30 inches above grade.
Issued byAnne Arundel County Department of Inspections and Permits, Permit Center
By Mario Bailey, verified against official sources
Quick answer
Outside Annapolis, a residential deck is exempt only if it is detached, does not exceed 200 square feet, and is not more than 30 inches above grade at any point within 36 inches of any edge; decks in the Chesapeake Bay Critical Area always need a permit. Attached decks (including any deck within 3 feet of the house) always need a Single Family Dwelling permit, and the county guide says replacing an existing deck, its railings or structural members also requires a permit, while replacing deck boards only does not.
Typical threshold: detached residential deck not more than 30 inches above grade and not attached to any structure; attached decks and decks in the critical area always need a permit.
Who is pulling this permit?
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When a permit is usually needed
Before building any attached deck, any deck in the critical area, or a detached deck over 200 sq ft or more than 30 inches above grade.
What your deck permit must meet in Maryland
Maryland requires every local jurisdiction to enforce the same residential code edition statewide, currently the 2021 IRC. The state's own amendments touch only scope, administration, and energy provisions, not the deck-framing chapter, so decks are built to the unmodified national model code as the statewide baseline.
- The statewide baseline is the model code itself: the 2021 International Residential Code is incorporated by reference in the Maryland Building Performance Standards (COMAR 09.12.51.04).
- Maryland's amendments to the IRC cover only Chapter 1 (Scope and Administration) and the Chapter 11 energy-efficiency provisions; no structural chapter, including the deck-framing provisions, is modified, so deck construction follows the published 2021 IRC text (COMAR 09.12.51.04).
Based on 2021 IRC, adopted via COMAR 09.12.51 Maryland Building Performance Standards. Read the code. Local amendments can be stricter; confirm the current requirement with your office before you build.
What a deck permit costs in Anne Arundel County
How Anne Arundel County compares in Maryland
| Jurisdiction | Permit needed? | Threshold |
|---|---|---|
| Anne Arundel Countythis page | It depends | detached residential deck not more than 30 inches above grade and not attached to any structure; attached decks and decks in the critical area always need a permit |
| Baltimore County | It depends | deck floor area, with a permit also required for any deck more than 16 inches above the lowest grade |
| Howard County | Permit required | Any size |
| Montgomery County | Permit required | Any size |
| Prince George's County | Permit required | Any size |
Closest deck permit thresholds outside Maryland
Jurisdictions we cover whose limit sits nearest Anne Arundel County's 200 sq ft.
- Austin, Texas, uncovered decks with area no greater than 200 sq ft and no more than 30 inches above grade and not attached to the dwelling and not providing required egress and not in floodplain are exempt
- Baton Rouge, Louisiana, deck floor area; the exemption also requires the deck to be less than 30 inches off the ground and located in a buildable area of the lot
- Boston, Massachusetts, detached decks not more than 30 inches above grade and under 200 sq ft that do not serve an exit door may be exempt
- Contra Costa County, California, area of a deck that is also no more than 30 inches above grade at any point, is not attached to a dwelling, and does not serve a code-required exit door
How to apply in Anne Arundel County
In Anne Arundel County, a residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs.
What most deck permit applications include:
- For Anne Arundel County, a permit application identifying the work, the deck's size (square footage), and whether electrical work such as lights or receptacles is included, submitted for plan review before construction begins (IRC R106).
- For Anne Arundel County, a scaled site plan (for example 1/4 inch to 1 foot) showing the new deck's location relative to the house, its overall length and width, and dimensioned distances from the deck to all property lines and other structures so required setbacks can be verified (IRC R106.1.1).
- For Anne Arundel County, a deck plan drawn to scale showing overall dimensions and the framing layout: joist size, spacing, span, and species; beam size and span; post size and height; and footing or pier size and depth (IRC R507.4 posts, R507.5 beams, R507.6 joists, R507.3 footings).
- For Anne Arundel County, a section or side elevation with connection details showing the ledger attachment to the house band joist with flashing, the fastener or bolt schedule, joist hangers, post-to-beam and post-to-footing connections, and the required lateral load connection (IRC R507.9 ledger connection, R507.9.2 lateral connection, R507.2.4 flashing).
- Footing sizing derived from tributary area, the soil bearing value, and design loads per IRC Table R507.3.1, with footings shown bearing on undisturbed soil at the frost depth required by the jurisdiction (IRC R507.3).
- Details for the guards required where the walking surface is more than 30 inches above grade, and for the stairs and handrails, showing guard height and opening limits, stair riser and tread dimensions, and handrail location (IRC R312 guards, R311.7 stairs and handrails).
- For designs that fall outside the prescriptive R507 tables (for example multi-story or stacked decks, or a ledger attached to a cantilever), engineered and stamped structural plans are submitted in place of the prescriptive details (IRC R507.1 and R301).
General submittal guidance from IRC R106.1.1 (construction documents) and IRC R507 (exterior decks), 2021 IRC. Source. Anne Arundel County Department of Inspections and Permits, Permit Center sets the exact checklist for Anne Arundel County.
Where to apply in Anne Arundel County:
Anne Arundel County Department of Inspections and Permits, Permit Center
- 2664 Riva Road, Heritage Office Complex, Annapolis, MD 21401
- Phone: (410) 222-7730
- Email: permitcenterhelp@aacounty.org
Deck Permit in Anne Arundel County compared with nearby Maryland localities
| Locality | Permit needed? | Threshold | What each Maryland schedule says | Verified |
|---|---|---|---|---|
| Anne Arundel County | It depends | detached residential deck not more than 30 inches above grade and not attached to any structure; attached decks and decks in the critical area always need a permit | Building permits are valuation-based: "$0-$3,000 | $86.00" rising to "Above $25,000 |... | |
| Baltimore County | It depends | deck floor area, with a permit also required for any deck more than 16 inches above the lowest grade | Building Permit Fee Schedule effective 07/01/26: Decks (Open Deck) (under 600 sf) $105.00 | |
| Howard County | Permit required | Any size | $50 per structure (Miscellaneous Structures Accessory permit, FY2027 Building Permit Fee... | |
| Montgomery County | Permit required | Any size | $223.87 flat for an open unenclosed deck 500 sq ft or less, or $0.8830 per sq ft for... | |
| Prince George's County | Permit required | Any size | ...effective March 2, 2025, line item "Deck or Pergola", minimum permit fee $151.00:... |
Inspections and closing out your permit
In Anne Arundel County, deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.
- Footing or pier inspection in Anne Arundel County: after the holes are dug and any forms or reinforcing are set but before concrete is placed, the inspector checks footing depth and diameter, a flat undisturbed bearing surface, and that the holes are free of water (IRC R109.1.1 foundation inspection; R507.3 footings).
- Framing inspection in Anne Arundel County: after the deck is framed but before the decking conceals it, the inspector verifies the ledger attachment and its flashing, the fastener and bolt schedule, joist hangers and metal connectors, post-to-beam and post-to-footing connections, and the lateral load connection; call it before decking is installed (IRC R109.1.4 frame inspection; R507.9 ledger and flashing).
- Final inspection in Anne Arundel County: after the deck is complete and before it is used, the inspector confirms guard height and opening limits (a 4 inch sphere must not pass, 4 3/8 inch at stairs), stair riser and tread dimensions, handrail height and graspability where there are 4 or more risers, stair landings, and required stair lighting (IRC R109.1.6 final inspection; R312 guards, R311.7 stairs and handrails).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Anne Arundel County permit portal or by phone at (410) 222-7730.
Inspection sequence from IRC R109 (inspections: R109.1.1 footing before concrete, R109.1.4 frame, R109.1.6 final), 2021 IRC. Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Deck Permit checklist for Anne Arundel County
- Confirm the requirement. Sometimes, depending on the project. Typical threshold: detached residential deck not more than 30 inches above grade and not attached to any structure; attached decks and decks in the critical area always need a permit. Usually needed: Before building any attached deck, any deck in the critical area, or a detached deck over 200 sq ft or more than 30 inches above grade.
- Budget the fee. Building permits are valuation-based: "$0-$3,000 | $86.00" rising to "Above $25,000 | $242.00 plus .010 times estimated cost above $25,000.00", plus "A non-refundable application fee of $43.00 will be added to all building permits." Minimum Building Permit Fee $86.00 (Permit Fees page, effective October 1, 2024). Official fee schedule.
- Apply. In Anne Arundel County, a residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs. Start at the Anne Arundel County permit portal.
- Keep the office details handy. Anne Arundel County Department of Inspections and Permits, Permit Center. Phone: (410) 222-7730. Address: 2664 Riva Road, Heritage Office Complex, Annapolis, MD 21401.
- Plan for inspections. In Anne Arundel County, deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a deck permit in Anne Arundel County?
- Outside Annapolis, a residential deck is exempt only if it is detached, does not exceed 200 square feet, and is not more than 30 inches above grade at any point within 36 inches of any edge; decks in the Chesapeake Bay Critical Area always need a permit. Attached decks (including any deck within 3 feet of the house) always need a Single Family Dwelling permit, and the county guide says replacing an existing deck, its railings or structural members also requires a permit, while replacing deck boards only does not. Detached residential deck not more than 30 inches above grade and not attached to any structure; attached decks and decks in the critical area always need a permit. Always confirm with the office before starting.
- How much does a deck permit cost in Anne Arundel County?
- Building permits are valuation-based: "$0-$3,000 | $86.00" rising to "Above $25,000 | $242.00 plus .010 times estimated cost above $25,000.00", plus "A non-refundable application fee of $43.00 will be added to all building permits." Minimum Building Permit Fee $86.00 (Permit Fees page, effective October 1, 2024). See the official fee schedule for current amounts.
- Where do you apply for a deck permit in Anne Arundel County?
- You can apply through the Anne Arundel County permit portal or contact the Anne Arundel County Department of Inspections and Permits, Permit Center directly. The links are listed on this page.
- Can a homeowner pull a deck permit themselves in Anne Arundel County?
- Under Maryland law (Md. Code, Bus. Occ. and Prof. 12-301(b), 6-607(1); Public Safety 12-505): It depends on the trade and the county. Plumbing: state law exempts an individual who personally provides plumbing services in their own residence, but homeowners may not make final connections between the residence and public or private water supply or disposal systems, and Baltimore County plus the WSSC-area counties are largely carved out of the state plumbing title. Electrical: the Maryland Electricians Act prohibits providing electrical services for compensation without a license; it has no express homeowner exemption, so uncompensated work on one's own home falls outside the licensing prohibition, but each county decides whether it will issue an electrical permit to an unlicensed homeowner. Building permits are issued by local jurisdictions, which set their own owner-applicant rules. Confirm how Anne Arundel County applies this before you apply.
From the Library
What else needs a permit in Anne Arundel County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Bathroom Remodel Permit | It depends | Before moving or replacing fixtures or piping, adding circuits, or relocating or... | Trade permits as scoped: plumbing "First plumbing fixture | $51.00", "Each additional... |
| Electrical Permit | It depends | Before installing, altering or replacing wiring, circuits, fixtures, panels or services | ...not include service change or subpanel) | Any number of electrical devices |... |
| EV Charger Permit | It depends | Before installing a hardwired charger or a new circuit or receptacle for one | ...not include service change or subpanel) | Any number of electrical devices |... |
| Fence Permit | It depends | height of a fence accessory to a residential structure; any fence on waterfront property or a corner lot with intersecting streets needs a permit regardless of height | Building permits are valuation-based: "$0-$3,000 | $86.00" rising to "Above $25,000 |... |
| HVAC Permit | It depends | Before installing or replacing a furnace, heat pump, central air conditioner or ductwork | Mechanical, residential: "Heating and Air Conditioning | $121.00", "Heating System |... |
| Patio Permit | It depends | patio height above adjacent grade; the exemption also requires that the patio is not over a basement or story below and is not part of an accessible route | ...a building permit is valuation-based: Building permits are valuation-based:... |
| Plumbing Permit | It depends | Before adding, relocating or replacing fixtures or piping | ...plumbing and all commercial plumbing work": "First plumbing fixture | $51.00"... |
| Pool Permit | It depends | prefabricated pools; every in-ground pool and every hot tub needs a permit | Building permits are valuation-based: "$0-$3,000 | $86.00" rising to "Above $25,000 |... |
| Roof Replacement Permit | It depends | Before replacing roof sheathing together with shingles, or any trusses | Building permits are valuation-based: "$0-$3,000 | $86.00" rising to "Above $25,000 |... |
| Shed Permit | It depends | one-story detached shed accessory to a residence, average height not over 10 feet; every shed in the Chesapeake Bay Critical Area and any shed within 3 feet of the house needs a permit | Building permits are valuation-based: "$0-$3,000 | $86.00" rising to "Above $25,000 |... |
| Solar Permit | Permit required | Any size | ...on the estimated value of the work": Building permits are valuation-based:... |
| Water Heater Permit | Permit required | Any size | Plumbing: "First plumbing fixture | $51.00" plus a $43.00 application fee |
Deck Permit in other Maryland localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Anne Arundel County documents; the office above sets the local rules.
How this deck permit page for Anne Arundel County was verified. 2 official sources: aacounty.org, codelibrary.amlegal.com; fee schedule: official document. Last checked by Mario Bailey, not confirmed with Anne Arundel County Department of Inspections and Permits, Permit Center. Rules change; confirm before you build. How we verify.
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