Deck Permit Cost in Frederick County, MD (2026)
Residential deck permit fees in Frederick County, Maryland, pulled directly from the official Frederick County Fee Schedule effective July 1, 2026 - the schedule now in force. Frederick prices a deck (including covered and screened porches) by size tier: $113 for 500 sq ft or less, $144 over 500 sq ft. Every permit adds a $33 filing fee and an $11 automation enhancement fee, so the all-in total is $157 or $188. Fees are flat by size, not construction value, and Maryland has no statewide percentage levy.
This guide covers: Frederick County, Maryland residential deck permit fees as published in the Frederick County Fee Schedule effective July 1, 2026, Section I.C. The schedule line is "Decks, covered & screened porches" - a covered or screened porch is priced on the same line as a deck: $113 at 500 sq ft or less, $144 over 500 sq ft, plus the $33 filing fee and $11 automation enhancement fee that apply to every building permit application.
This guide does NOT cover: Trade permits - the electrical permit for deck lighting, outlets, or a hot-tub circuit is filed separately on Frederick County's electrical fee schedule (Section III of the same document) and is not priced here. Impact fees and excise tax. Municipal permits - if your property is inside city limits (for example the City of Frederick or a town like Brunswick or Middletown), the municipality may require its own permits and fees on top of or instead of the county's. HOA architectural approvals. Deck contractor labor and material costs.
Zoning review is a separate line item: The same fee schedule lists a $57 zoning review fee for "other residential use" (Section I.A.10). Whether zoning review applies to a specific deck application is determined by the county at intake, so it is disclosed here as a separate possible line item - it is not added into the $157 / $188 all-in figures on this page.
When a Frederick County deck permit is required: Frederick County lists decks as a permitted residential construction type (Section I.C), so a building permit is generally required. Specific height and exemption thresholds are set by the county - confirm whether your specific deck requires a permit with the Department of Permits and Inspections at 301-600-2313 before assuming an exemption.
A Frederick County, MD deck permit costs $157 all-in for a deck of 500 sq ft or less - the $113 base fee from Section I.C plus the $33 filing fee and $11 automation enhancement fee charged on every permit. A deck over 500 sq ft is $188 all-in ($144 + $33 + $11). Covered and screened porches share the same fee line. The fee is flat by size tier, not construction value - a $5,000 deck and a $40,000 composite deck of the same size pay the same. These figures come from the Frederick County Fee Schedule effective July 1, 2026, which is the schedule currently in force.
- Frederick County bills a residential deck at $113 (500 sq ft or less) or $144 (over 500 sq ft) under Section I.C of the fee schedule. Covered and screened porches are priced on the same schedule line as decks.
- Every building permit application adds a $33 filing fee and an $11 automation enhancement fee, so the real all-in cost is $157 for most decks and $188 for decks over 500 sq ft ($113 + $33 + $11 = $157; $144 + $33 + $11 = $188).
- Fees are flat by size tier, not construction value - unlike value-based jurisdictions, a $5,000 pressure-treated deck and a $40,000 composite deck of the same footprint pay exactly the same permit fee. The schedule also sets a $63 minimum fee on all building permits.
- Maryland has no statewide percentage building-permit levy, so there is no Virginia-style 2% add-on. The $157 / $188 all-in figures are the complete county building permit charge for the deck itself.
- Deck electrical work - lighting, outlets, or a hot-tub circuit - is a separate electrical trade permit on Section III of the same fee schedule. It is priced separately and is not included in the figures on this page.
- These figures come from the fee schedule effective July 1, 2026 - the most current verified schedule in our Maryland cluster. Frederick sits mid-pack for deck permits: above Carroll County ($60 flat) and below Montgomery County ($194.67).
Frederick County Deck Permit Fee Structure
Frederick County uses a flat fee-by-size structure for residential decks. There is no valuation formula and no percentage levy - the Section I.C size-tier fee plus the two fixed application fees is the whole county building permit charge for the deck.
| Item | Fee | How It Is Calculated |
|---|---|---|
| Deck, covered or screened porch - 500 sq ft or less | $113.00 | Flat base fee, Section I.C. Size tier only - construction value is irrelevant. |
| Deck, covered or screened porch - over 500 sq ft | $144.00 | Flat base fee, Section I.C. Size tier only - construction value is irrelevant. |
| Filing fee | $33.00 | Charged on all new permit applications (Section I.A.8). All other fees are in addition to it. |
| Automation enhancement fee | $11.00 | Charged on all building permit applications (Section I.A.14). |
| All-in total - 500 sq ft or less | $157.00 | $113 + $33 + $11. |
| All-in total - over 500 sq ft | $188.00 | $144 + $33 + $11. |
| Zoning review - other residential use | $57.00 (if applied) | Separate line item (Section I.A.10). Whether it applies to a given deck application is determined by the county at intake - not added into the totals above. |
| Deck electrical (lighting / outlets) | Separate | Electrical permit on Section III of the same fee schedule - priced separately, not shown here. |
| State / local percentage levy | None | Maryland has no statewide USBC-style percentage levy. No 2% add-on. |
Source: Frederick County Fee Schedule, effective July 1, 2026 - Section I.C (Decks, covered & screened porches), Section I.A.8 (filing fee), Section I.A.14 (automation enhancement fee). The schedule also sets a $63 minimum fee on all building permits (Section I.A.7); both deck tiers exceed it. Trade permits (electrical, Section III) are billed separately.
Worked Examples - Real Deck Projects in Frederick County
Each example applies the Section I.C size tier plus the two fixed application fees. Because Frederick prices decks by size, not value, the construction cost never changes the permit fee - only crossing the 500 sq ft line does.
A homeowner builds a 200 sq ft pressure-treated deck off the back door of a single-family home. No deck lighting or outlets - no electrical trade permit triggered.
- Deck is 500 sq ft or less: base fee = $113.00
- Filing fee = $33.00
- Automation enhancement fee = $11.00
- Maryland percentage levy: $0.00 (none)
- Total all-in deck permit: $157.00
If the county applies the $57 "other residential use" zoning review to the application, that is a separate line item on top - it is determined at intake and is not part of the $157 building permit total.
A homeowner builds a 320 sq ft high-end composite deck with a declared construction cost of $40,000. Frederick's fee is set by the size tier, so the premium build cost changes nothing.
- Deck is 500 sq ft or less: base fee = $113.00
- Filing fee = $33.00
- Automation enhancement fee = $11.00
- Total all-in deck permit: $157.00
The $40,000 construction value is irrelevant to the fee - a $5,000 deck and a $40,000 composite deck of the same size both pay $157. In a value-based jurisdiction the same project could cost several times more to permit.
A homeowner builds a 600 sq ft wraparound deck with recessed step lighting and two GFCI outlets. The deck crosses the 500 sq ft line, so the higher tier applies, and the electrical work is a separate trade permit.
Deck building permit:
- Deck is over 500 sq ft: base fee = $144.00
- Filing fee = $33.00
- Automation enhancement fee = $11.00
- Building permit subtotal: $188.00
Electrical trade permit (lighting and outlets):
- Filed separately under Section III (electrical) of the Frederick County Fee Schedule - not priced here
- Contact the Department of Permits and Inspections at 301-600-2313 for the current electrical permit fee for your scope.
PermitPrice does not estimate the Frederick electrical trade-permit amount because it is set on a separate schedule section that is not part of the building permit fee data verified for this page.
Frederick County Deck Permit Cost vs Other Verified Jurisdictions
At $157 all-in for a typical deck, Frederick sits mid-pack in the verified Maryland cluster - and it is the most current schedule in the cluster (effective July 1, 2026), while the neighbors below carry older printed dates. Read the basis column and the schedule date, not just the dollar figure.
| Jurisdiction | Deck Fee Basis | Typical Deck Permit (≤500 sq ft) | Schedule Date |
|---|---|---|---|
| Frederick County, MD | $113 / $144 by size + $44 fixed fees | $157.00 all-in | Effective July 1, 2026 (current) |
| Carroll County, MD | $60 flat (any size) | $60.00 | April 2021 - verify current |
| Baltimore County, MD | $85 / $119 by size | $85.00 | 2018 - verify current |
| Montgomery County, MD | $194.67 flat (≤500 sq ft) | $194.67 | FY2022 - verify current |
All four jurisdictions price decks by flat fee or size tier - none uses construction value. Frederick's figure is all-in (base + $33 filing + $11 automation); the neighbors' published figures are shown as they appear on their own schedules. Carroll (April 2021), Baltimore County (2018), and Montgomery (FY2022) carry older printed dates and are source-age flagged on their own pages; Frederick's schedule is the most current, effective July 1, 2026. Trade permits (electrical) are excluded throughout because they vary by deck scope.
See how Frederick compares head-to-head against Montgomery County across project types.
When This Estimate May Not Apply
- Property inside municipal limits. The county fee schedule explicitly excludes fees charged by municipalities and other reviewing agencies. If your deck is inside the City of Frederick or another incorporated town, the municipality may require its own permit and fees - the $157 / $188 figures cover the county application only.
- Electrical work on the deck. Lighting, outlets, or a hot-tub circuit trigger a separate electrical permit priced on Section III of the fee schedule. That amount is not included in any figure on this page.
- Zoning review applied at intake. The county may apply the $57 "other residential use" zoning review fee to a deck application. It is a separate line item on the same schedule and is not summed into the all-in totals here.
- The structure is not actually a deck or porch. A roofed freestanding gazebo or pavilion falls under the accessory structures line ($144 under 400 sq ft, $226 at 400 sq ft or more), not the deck line. If the county classifies your project differently, a different fee applies.
- Revisions, extensions, or re-inspections. The $33 filing fee applies to new applications; revisions and extensions follow their own rules, and additional inspections can carry their own charges.
- Fee schedule changes. These figures are from the schedule effective July 1, 2026. Frederick County adjusts its schedule on an annual cycle - always confirm at application time.
Frequently Asked Questions
Sources
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Frederick County Fee Schedule - Effective July 1, 2026 Effective July 1, 2026 - Frederick County, MD - Primary source for the deck fee tiers ($113 / $144, Section I.C), filing fee ($33, Section I.A.8), automation enhancement fee ($11, Section I.A.14), minimum permit fee ($63, Section I.A.7), and zoning review fee ($57, Section I.A.10). Extracted June 8, 2026
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Frederick County - Permitting Fees Accessed June 2026 - Frederick County, MD - Official landing page for the county fee schedule, maintained by the Department of Permits and Inspections. Phone 301-600-2313
Frederick County Department of Permits and Inspections - call 301-600-2313 or apply through the Frederick County Application Portal at planningandpermitting.frederickcountymd.gov.