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Pergolas, play sets and carports in Fairfax County, VA

Pergolas, gazebos, play sets and treehouses follow the freestanding accessory structure rules by height. Two small trellises may stand in the front setback. Play equipment counts toward the rear setback coverage cap.

A person last checked these rules on October 20, 2026. This is guidance only, so confirm with Fairfax County before you build.

The details

  • Up to 8.5 ft tall: anywhere in a side or rear yard. 8.5 to 12 ft: 5 ft from the lines. Over 12 ft: district side setback and a rear setback equal to the height.High confidence
  • Front setback: up to two trellises, 8 ft tall and 4 ft wide. A basketball standard 15 ft from the front line. A garden up to 100 sq ft.High confidence
  • Building permit: playhouses and similar structures up to 256 sq ft are exempt. Carports and attached pergolas need a permit.Medium confidence

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Common questions

Do pergolas, play equipment and carports need permits in Fairfax County?
Pergolas, gazebos, play sets and treehouses follow the freestanding accessory structure rules by height. Two small trellises may stand in the front setback. Play equipment counts toward the rear setback coverage cap.

Sources

  1. Fairfax County Zoning Ordinance § 4102.7.A(5), (6), (17), rear setback coverage, freestanding accessory structures, swimming pools. Checked 2026-10-21
    All accessory structures and uses may cumulatively cover no more than 30 percent of the minimum rear setback on any lot located in a conventional residential district... [Coverage includes] children's play equipment, sports court, pool and associated deckin…
  2. Virginia USBC, 13VAC5-63-80 Section 108.2, Exemptions from application for permit. Checked 2026-10-23
    2. One story detached structures used as tool and storage sheds, playhouses, or similar uses, provided the building area does not exceed 256 square feet... 5. Fences of any height unless required for pedestrian safety as provided for by Section 3306 or used…

Disclaimer: This is general information, not legal or professional advice for any one property. Codes change. SetbackIQ is not a zoning determination, a permit, or a survey, and it does not replace an architect, engineer, or lawyer. Confirm with your building and zoning offices before you build, buy, or sign a contract.