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Fairfax County Shed Permit Cost (2026)

Storage shed permit fees in Fairfax County, Virginia, pulled from the official Appendix Q Land Development Services Fee Schedule (FY2027, effective July 1, 2026). Fairfax does not require a building permit for residential storage sheds 256 square feet or under that have no plumbing or electrical scope - most pre-fab garden sheds from big-box retailers fall under this exemption. Sheds over 256 sq ft, or any shed (regardless of size) that includes plumbing or electrical work, require a building permit. Fairfax's shed permit uses the same percentage-of-construction-value formula as the residential alteration and repair tier: 3% of declared construction value with a $141.75 minimum building permit fee, plus the 2% Virginia state levy and the 10% Fairfax County technology surcharge on the building permit fee. For a 260 sq ft storage shed with electrical at $12,000 declared value, the all-in building permit cost is $403.20. Smaller permit-required sheds bottom out at the minimum fee of $158.77 all-in.

Under 256 sq ft (no utilities)
No permit required - $0
Over 256 sq ft or with utilities
3% of value + 2% levy + 10% tech
Minimum All-In Fee
$158.77 ($141.75 + $2.84 + $14.18)
260 sq ft Shed, $12k declared
$403.20 all-in
Last Verified
September 18, 2026
Fee Status
Appendix Q FY2027
What This Guide Covers - and What It Does Not

This guide covers: Fairfax County, Virginia residential storage shed permit fees as published in the Appendix Q Land Development Services Fee Schedule (FY2027, effective July 1, 2026). Coverage includes the 256 sq ft exemption threshold and its conditions (no plumbing, no electrical), the 3% residential percentage-of-construction-value formula that governs permit-required sheds, the $141.75 minimum building permit fee, the 2% Virginia state levy and 10% Fairfax technology surcharge applied to the building permit fee, and the relationship between the building permit and the separately-filed electrical, plumbing, and mechanical trade permits.

This guide does NOT cover: Detached garages (treated as new construction under the Fairfax garage_new fee schedule with sq-ft-based pricing by construction type, not the shed alteration formula); accessory dwelling units or ADUs (separate scope, see Fairfax ADU treatment on the jurisdiction page); commercial storage structures; zoning approvals required before permit submission (rear-yard setback, side-yard setback, lot-coverage analysis, conservation district overlays for Mount Vernon and other historic areas); Resource Protection Area (RPA) review for properties near Bull Run, Pohick Bay, or other RPA-designated streams; HOA architectural review (not a county process - check your HOA covenants); the cost of the shed itself or installation labor; or trade permit costs (electrical, plumbing) which are filed separately and itemized by amperage tier, fixture count, or zone count per the Appendix Q trade permit schedules.

Shed-vs-garage classification: A "shed" under Appendix Q is a single-use storage structure - typical lawn-and-garden tool storage, pre-fab garden sheds, kit-built workshops with no vehicle access. A detached structure with garage doors, vehicle ramps, or designed parking spaces is classified as a new garage under the new construction sq-ft formula ($0.15 per sq ft VA/VB wood frame for the building permit, $141.75 minimum). If the Fairfax inspector classifies a "shed" application as a garage during plan review, expect the fee structure to switch to sq-ft pricing. Confirm scope with Land Development Services at (703) 222-0801 before filing if you are uncertain.

Note on the electrical trade permit: If your shed includes any electrical work, the electrical trade permit is filed separately at the Appendix Q FY2027 Level One base fee ($141.75 for up to 100 circuits or pieces of equipment), plus the 2% state levy ($2.84) and 10% technology surcharge ($14.18) = $158.77. The $403.20 worked example for a 260 sq ft shed includes the building permit but excludes the electrical permit cost; budget an additional $158.77 for the electrical permit if the shed has any new circuits.

Key Takeaways
  • Sheds 256 square feet or under with no plumbing or electrical are EXEMPT from building permit requirements in Fairfax County. This covers most pre-fab garden sheds, plastic resin sheds, and kit-built lawn sheds sold by big-box retailers. Zoning still applies (setbacks, lot coverage), but no building permit fee is owed.
  • Sheds over 256 sq ft, or any shed (regardless of size) with plumbing or electrical, REQUIRE a permit. The fee uses Fairfax's residential 3% percentage-of-construction-value formula: 3% of declared value, $141.75 minimum building permit, then the 2% Virginia state levy and 10% Fairfax technology surcharge on the building permit fee (3.36% of declared value all-in above the minimum).
  • Minimum all-in shed permit fee: $158.77 ($141.75 building permit + $2.84 levy + $14.18 technology surcharge). Applies to permit-required sheds with declared construction value of $4,725 or less (where 3% of declared value falls at or below the $141.75 minimum).
  • Worked example from Appendix Q: 260 sq ft storage shed with electrical, $12,000 stated valuation = $360 (3% x $12k) + $7.20 (2% levy on $360) + $36.00 (10% technology surcharge on $360) = $403.20 all-in. This is the reference example PermitPrice uses for the shed category.
  • Electrical sub-permit is required and filed separately whenever the shed has any electrical work. A residential electrical permit with up to 100 circuits or pieces of equipment is the Level One base fee of $141.75, plus $2.84 levy and $14.18 technology surcharge = $158.77. Even a single lighting circuit in a shed requires the electrical permit. The minimum for any permit is $141.75.
  • Plumbing sub-permit follows the same logic. A residential plumbing permit with up to 100 fixtures is the same Level One base fee of $141.75. A shed with a single utility sink and water connection adds $141.75 + $2.84 levy + $14.18 technology surcharge = $158.77 to the project total.
  • Trade permit additions land hard: a 260 sq ft shed with one circuit and one fixture goes from $403.20 (building permit only) to $403.20 + $158.77 electrical + $158.77 plumbing = $720.74 all-in. The shed building permit is one of several line items; the two trade permits together add nearly 80% on top of it.
  • Fairfax's percentage-of-value structure is structurally more expensive than flat-fee jurisdictions for the same shed. Chesterfield County charges $166.28 all-in for a 257-400 sq ft shed (flat $114 + $50 site fee + 2% levy). Norfolk City charges $101.00 all-in for a 320 sq ft shed (accessory structure $50 min + $35 plan review + $15 processing + $1 levy). See the Virginia shed permit guide for the full cross-jurisdiction comparison.
Calculate Your Shed Permit All Fairfax Permit Fees

Fairfax Shed Permit Fee Components

A Fairfax permit-required shed permit is built from three components: the building permit fee (3% of declared value or $141.75 minimum), the 2% Virginia state levy applied to the building permit fee, and the 10% Fairfax County technology surcharge applied to the same fee. Trade permits (electrical, plumbing, mechanical) are separate filings at the Level One base fee with their own levy and surcharge.

Component $4,725 or less declared $12,000 declared (260 sq ft electrical) $25,000 declared (400 sq ft workshop)
Building permit (3% of value, min $141.75) $141.75 min $360.00 $750.00
2% Virginia state levy (on building permit) $2.84 $7.20 $15.00
10% Fairfax technology surcharge (on building permit) $14.18 $36.00 $75.00
All-in building permit total $158.77 $403.20 $840.00

Source: Fairfax County Appendix Q Land Development Services Fee Schedule (FY2027, effective July 1, 2026). The 3% formula and $141.75 minimum apply to structures accessory to a dwelling, including sheds (Appendix Q I-B(D)). The 2% state levy is required by Code of Virginia Section 36-139 (I-A.12) and the 10% technology surcharge is Appendix Q Part III; both are calculated on the building permit fee. Half of the permit fee is due at application as a filing-fee deposit and is credited toward the permit fee at issuance (County Code 61-1-3(d)11); it is not an extra charge and is not refunded if the application expires. Trade permit additions (electrical, plumbing) excluded from totals above.

Worked Examples - Real Shed Projects in Fairfax County

Each example shows arithmetic from the Appendix Q FY2027 fee schedule. Fairfax's shed fee scales with declared construction value above the $4,725 threshold (where 3% equals the $141.75 minimum). At or below that threshold the minimum building permit applies and the shed fee bottoms out at $158.77 all-in.

Example 1: 192 sq ft pre-fab garden shed (PERMIT-EXEMPT)

A homeowner installs an 8 x 24 foot pre-fab plastic resin garden shed from a big-box retailer. The shed has no electrical, no plumbing, no built-in workbench requiring permanent power. Total floor area: 192 sq ft.

  • Floor area: 192 sq ft (under the 256 sq ft threshold)
  • Plumbing or electrical: None
  • Permit required: No
  • Building permit fee: $0.00
  • Total: $0.00

Note: although a building permit is not required, zoning setbacks still apply. Fairfax typically requires a minimum 8 ft side-yard setback and 15 ft rear-yard setback for accessory structures, but exact distances vary by zoning district. Verify with Land Development Services at (703) 222-0801 before placing the shed.

Example 2: 260 sq ft storage shed with electrical at $12,000 declared (reference example)

A homeowner builds a 10 x 26 foot stick-framed storage shed with two 15-amp lighting circuits and a duplex outlet for a battery charger. The contractor invoice is $12,000 (materials and labor combined). Total floor area: 260 sq ft - just over the 256 sq ft threshold, and electrical scope triggers the permit regardless of size.

  • Floor area: 260 sq ft (over the 256 sq ft threshold; permit required)
  • Electrical: yes (permit also required regardless of size due to electrical scope)
  • Declared value: $12,000
  • Building permit (3% of $12,000): $360.00
  • 2% Virginia state levy on $360: $7.20
  • 10% Fairfax technology surcharge on $360: $36.00
  • Total building permit: $403.20

Note: this $403.20 is for the building permit only. The electrical trade permit is filed separately at the $141.75 Level One base fee plus $2.84 levy and $14.18 technology surcharge = $158.77, bringing the combined project total to $561.97.

Example 3: 400 sq ft detached workshop shed, full utilities, $25,000 declared

A homeowner builds a 20 x 20 foot detached workshop shed with HVAC mini-split for climate control, dedicated 240V circuit for power tools, sink and water connection. Contractor invoice $25,000 (materials and labor combined).

  • Floor area: 400 sq ft (over 256 sq ft threshold; permit required)
  • Declared value: $25,000
  • Building permit (3% of $25,000): $750.00
  • 2% Virginia state levy on $750: $15.00
  • 10% Fairfax technology surcharge on $750: $75.00
  • Building permit subtotal: $840.00

Trade permit additions:

  • Electrical permit (240V tool circuit + mini-split power, Level One): $141.75 + $2.84 levy + $14.18 tech = $158.77
  • Plumbing permit (sink + water connection, Level One): $141.75 + $2.84 levy + $14.18 tech = $158.77
  • Mechanical permit (mini-split HVAC, Level One): $141.75 + $2.84 levy + $14.18 tech = $158.77
  • Trade subtotal: $476.31

Combined permit total: $1,316.31

Note: high-utility workshop sheds end up with combined permit costs above $1,300 once three trade permits stack onto the building permit. Under FY2027 the building permit is the larger line; each trade permit is a flat $158.77 at Level One.

Example 4: 280 sq ft simple storage shed at $5,000 declared (just above minimum-fee territory)

A homeowner builds a 10 x 28 foot simple wood-frame storage shed with no electrical, no plumbing, no HVAC. Permit is still required because the shed exceeds 256 sq ft. Contractor invoice $5,000 (lumber, hardware, basic labor).

  • Floor area: 280 sq ft (over 256 sq ft threshold)
  • Declared value: $5,000
  • Building permit (3% of $5,000): $150.00 (above $141.75 minimum)
  • 2% Virginia state levy on $150: $3.00
  • 10% Fairfax technology surcharge on $150: $15.00
  • Total building permit: $168.00

Note: at $5,000 declared the 3% formula yields $150, which is above the $141.75 minimum so the formula applies. At $4,725 declared or below the $141.75 minimum kicks in and the all-in fee floor is $158.77. No trade permits required for utility-free sheds.

Calculate Your Fairfax Shed Permit

The PermitPrice fee calculator supports Fairfax County's residential 3% percentage-of-value formula directly. Pick "Fairfax County, VA" and "Shed" in the calculator dropdowns, then enter your contractor's invoice amount (or your best estimate of materials + labor). The calculator returns the all-in building permit cost broken down by component. Trade permits (electrical, plumbing, mechanical) are not modeled in the cost-only calculator UI - file those separately with your sub-contractors.

Calculator coverage for Fairfax sheds: the 3% formula plus 2% state levy plus 10% technology surcharge is calculator-supported. The 256 sq ft exemption decision (permit required or not) is not modeled - confirm scope with Land Development Services before assuming you need a permit. Sheds under 256 sq ft with no plumbing or electrical do not file a permit at all.

Open the Permit Fee Calculator

Trade Permits Fairfax Requires for Utility Sheds

Sheds with any electrical, plumbing, or HVAC scope require separate trade permits beyond the building permit. Under Appendix Q FY2027 each residential trade permit with up to 100 fixtures, circuits or pieces of equipment is the Level One base fee of $141.75. Each trade permit also carries the 2% Virginia state levy and the 10% Fairfax technology surcharge. These are separate filings, separate fees, separate inspections.

Trade Permit Component Fairfax Fee Range When It Applies to a Shed
Electrical (Level One, up to 100 circuits or pieces of equipment) $141.75 + 2% levy + 10% tech = $158.77 Lighting circuit, outlet, tool-charger power, a 240V tool circuit or a sub-panel; every residential shed electrical scope fits inside Level One
Electrical (above Level One) Priced by LDS above $141.75 Only when the scope exceeds 100 circuits or pieces of equipment; not a residential shed scenario. Confirm with LDS (703-222-0801).
Plumbing (Level One, up to 100 fixtures) $141.75 + 2% levy + 10% tech = $158.77 Sink, water connection, hose bib if permanent, water heater, floor drain; all fit inside Level One
Plumbing (above Level One) Priced by LDS above $141.75 Only when the scope exceeds 100 fixtures; not a residential shed scenario
Mechanical (Level One, HVAC) $141.75 + 2% levy + 10% tech = $158.77 Mini-split heat pump or window unit hardwired in shed for climate control, one or two zones
Reinspection $141.75 per visit Charged when a trade or building inspection fails and must be repeated
Minimum electrical / plumbing / mechanical permit fee $141.75 base No permit is issued below the $141.75 base fee (Appendix Q I-A.1); the 2% levy and 10% technology surcharge apply on top

Source: Fairfax County Appendix Q Land Development Services Fee Schedule (FY2027), Level One trade permit base fee ($141.75, up to 100 fixtures, circuits or pieces of equipment), reinspection fee ($141.75), 2% levy (I-A.12) and 10% technology surcharge (Part III). Verified September 18, 2026 against the official PDF on fairfaxcounty.gov/landdevelopment.

Fairfax Shed Permit Cost vs Virginia Neighbors

Fairfax's 3% percentage-of-construction-value formula makes it more expensive than most flat-fee Virginia jurisdictions for sheds: the $158.77 minimum already exceeds Norfolk's $101.00 and Henrico's $144.84, and any shed declared above roughly $4,950 also passes Chesterfield's $166.28. The structural reason: Fairfax applies the 2% state levy and 10% technology surcharge on top of a 3% building permit fee, yielding a 3.36% effective rate on declared value. Flat-fee jurisdictions ignore declared value entirely.

Jurisdiction Shed Pricing Method 260 sq ft Shed ($12k) All-In
Fairfax County 3% + 2% levy + 10% tech $403.20
Loudoun County Bundled $395 + 2% levy $402.90
Chesterfield County $114 flat (257-400) + $50 EE + 2% levy $166.28
Henrico County $100 + $6/$1,000 over $5,000 (capped $680) $144.84
Norfolk City Accessory $0.15/sq ft ($50 min) + $35 PR + $15 + 2% levy $101.00
Richmond City $63 + $6.07/$1,000 over $2,000 + 2% levy $126.94
Washington, DC $65 flat + 10% Enhanced $71.50

"260 sq ft shed ($12k) all-in" assumes a 260 sq ft shed with electrical at $12,000 declared construction value. Building permit only - trade permits (electrical at $158.77 Level One in Fairfax) excluded because they vary by scope. The Norfolk figure uses the accessory structure formula at $0.15/sq ft hitting the $50 minimum since 260 sq ft x $0.15 = $39. The Henrico figure assumes the shed value triggers the $100 + $6/$1k over $5k formula. DC is the cheapest verified DMV jurisdiction for residential sheds (flat $65 + 10% = $71.50).

Side-by-Side Math

For a full breakdown of how Fairfax and other Virginia jurisdictions price sheds, see the statewide guide.

Frequently Asked Questions

Fairfax County requires a building permit for residential sheds only when the structure exceeds 256 square feet OR when the shed includes plumbing or electrical scope. Pre-fab garden sheds 256 sq ft and under with no utilities are exempt - no fee, no permit. Sheds over 256 sq ft, or any shed with electrical or plumbing, require a permit and pay 3% of declared construction value (minimum $141.75 building permit) + 2% Virginia state levy + 10% Fairfax technology surcharge. Reference example: a 260 sq ft storage shed with electrical at $12,000 declared value costs $403.20 all-in for the building permit.
For permit-required sheds, Fairfax's minimum building permit fee is $141.75 (Appendix Q I-A.1). With the 2% Virginia state levy ($2.84) and the 10% technology surcharge ($14.18), the minimum all-in fee is $158.77. The $141.75 minimum applies when 3% of declared construction value falls at or below $141.75 (declared value of $4,725 or less). Most permit-required sheds in Fairfax cost between $158.77 (minimum-fee territory) and $840.00 (400 sq ft workshop at $25,000 declared). Above $25,000 declared value the formula keeps scaling linearly: a $50,000 luxury workshop shed building permit would be $1,500 + $30 + $150 = $1,680 all-in.
Fairfax uses a 3% percentage-of-construction-value formula, yielding an effective 3.36% rate on declared value once the 2% state levy and 10% technology surcharge are added. Chesterfield County charges $114 flat for sheds 257-400 sq ft regardless of declared value ($166.28 all-in with $50 site fee and 2% levy). Henrico County uses a value-based formula that caps at $680 building permit, so even high-value sheds plateau around $144.84-$693.60 all-in. Norfolk City uses an accessory-structure-per-square-foot formula at $0.15/sq ft with a $50 minimum, yielding $101.00 all-in for a 260-320 sq ft shed. Fairfax's structurally-different value-based approach scales without a cap, making it the most expensive verified Virginia jurisdiction for sheds once declared value passes roughly $12,000 (where it overtakes Loudoun's bundled $402.90).
Yes. Fairfax classifies a "shed" as a single-use storage structure - tool shed, garden shed, workshop shed without vehicle access. A "garage" (new) is a structure designed for vehicle parking, with overhead garage doors and vehicle ramps. Garages use a different fee structure: per-sq-ft pricing by construction type ($0.15/sq ft VA/VB wood frame for the building permit, $141.75 minimum), plus the 2% state levy and 10% technology surcharge. A 576 sq ft detached 2-car garage at VA/VB wood frame = 576 x $0.15 = $86.40, which floors to the $141.75 minimum + $2.84 levy + $14.18 technology surcharge = $158.77. The same 576 sq ft structure filed as a "shed" at $40,000 declared value would be 3% x $40,000 = $1,200 building permit + $24 levy + $120 technology surcharge = $1,344 all-in. The classification matters enormously; confirm with Land Development Services before filing.
Technically yes for the building permit threshold - Fairfax applies the 256 sq ft exemption per individual accessory structure. But zoning lot-coverage limits, side- and rear-yard setbacks, and total-coverage-area caps still apply across all accessory structures on the lot. Most Fairfax residential zoning districts limit total accessory structure coverage to 30% of the rear yard. Two 240 sq ft sheds may comply with the building permit exemption but trigger zoning violations if combined coverage exceeds your district limit. Always check with the Department of Planning and Zoning before splitting a project to dodge the permit threshold; the zoning review may add up to more cost than the permit you were trying to avoid.
Fairfax does not publish a guaranteed turnaround for residential shed permits. Filings go through the PLUS portal (plus.fairfaxcounty.gov); review timelines depend on submission completeness, current Land Development Services backlog, and whether the property triggers Resource Protection Area (RPA), conservation district, or HOA architectural review. The complete application package is typically a site plan showing shed location and setbacks, manufacturer specs (if pre-fab), electrical and plumbing trade permit applications (if applicable), and the contractor's invoice or value estimate. Simple permit-required sheds with no trade permits and no RPA review typically clear within 2-4 weeks; complex workshop sheds with electrical, plumbing, and HVAC trade permits may take 6-10 weeks. Call (703) 222-0801 for current submission windows.
No. The $403.20 Fairfax shed permit fee is the county building permit cost only - the cost to apply, get plan review, and have inspections performed. It does not include the shed itself or any installation labor. A 260 sq ft pre-fab storage shed kit retails for $4,000-$8,000 from major manufacturers (Tuff Shed, Costco Outdoor Living, Home Depot custom); a stick-framed shed of the same size built on-site by a contractor typically runs $8,000-$20,000 depending on siding, roofing, and electrical scope. The permit fee is the smallest line item in your project budget; the bulk is the shed and contractor scope. PermitPrice tracks only the county permit fee component.
Fairfax requires the declared construction value to be the greater of (a) the applicant's stated value, or (b) the ICC Building Valuation Data (BVD) calculation for the project's construction class and area. For sheds, the ICC BVD multiplier varies by construction type but typically falls in the $30-$50 per sq ft range for utility-only storage structures. If your contractor invoice is $12,000 for a 260 sq ft shed, that yields $46.15 per sq ft which is within typical BVD - so the applicant-stated $12,000 likely controls. If you put a suspiciously low value on the application (e.g., $2,000 for a 400 sq ft workshop), the inspector will recalculate using BVD and bill the higher rate. Honesty in declared value is the practical approach; under-declaring rarely succeeds and may trigger a Work Without Permit administrative penalty if discovered later.

Sources

Official .gov Sources - Verified September 2026
  • Appendix Q - Land Development Services Fee Schedule (FY2027) Effective July 1, 2026 - Fairfax County Land Development Services - Appendix Q FY2027 (amendment 05-26-Q, adopted May 5, 2026, effective July 1, 2026). Primary source for the accessory-structure 3% formula with $141.75 minimum (I-B(D)), 2% levy (I-A.12), 10% technology surcharge (Part III), Level One trade permit base fee, and the 256 sq ft permit exemption threshold for residential storage sheds with no plumbing or electrical - Verified September 18, 2026 against the PDF on fairfaxcounty.gov/landdevelopment Verified
  • Land Development Services - Fairfax County Government Accessed September 18, 2026 - Fairfax County - Index page linking the PLUS portal at plus.fairfaxcounty.gov, the residential permit application packet, the trade permit applications, and the LDS Customer Service contact
  • Code of Virginia Section 36-139 - USBC State Levy Authority Current - Virginia General Assembly - Authorizing statute for the statewide 2% building permit surcharge applied in Virginia jurisdictions, including Fairfax shed permits
Next Step

Calculate your specific Fairfax shed permit cost, see all Fairfax fee categories, or compare against Virginia neighbors.

Always verify current shed permit fees and the 256 sq ft exemption threshold directly with Fairfax County Land Development Services before budgeting or filing. The Appendix Q PDF on fairfaxcounty.gov/landdevelopment is the source of truth for Fairfax fee schedules and is currently dated FY2027 (effective July 1, 2026). Call LDS Customer Service at (703) 222-0801 to confirm the permit exemption applies to your specific shed scope and to verify trade permit requirements before submission. Permit-exemption decisions depend on accurate floor area, plumbing/electrical scope, and zoning compliance - inspectors may reclassify projects on review.
Disclaimer: All fee information on PermitPrice is for informational purposes only and is not an official permit quotation. Actual permit fees are determined by Fairfax County Land Development Services at the time of application. Trade permit subtotals in this guide use the lowest applicable tier from the Appendix Q schedule; actual electrical, plumbing, and mechanical permit costs depend on installer scope (amperage, fixture count, zone count) and may run higher than the floor estimates shown. The 256 sq ft exemption threshold applies only when the shed has no plumbing and no electrical work; verify with LDS if your scope includes either. Zoning compliance (setbacks, lot coverage, RPA review) is separate from building permit requirements - exemption from one does not exempt you from the other.

Written by: Munib Ur Rehman

Data verified against official fee schedule documents.