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SetbackIQ

Sheds and garages in Fairfax County, VA

A shed up to 8.5 ft tall can sit anywhere in a side or rear yard. 8.5 to 12 ft needs 5 ft from the lines. Taller needs the district side setback and a rear setback equal to its height. Accessory buildings are capped at 20 ft tall and 50% of the house's floor area on lots of 36,000 sq ft or less.

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

The details

  • Not in the front yard on lots of 36,000 sq ft or less.High confidence
  • All accessory structures together may cover no more than 30% of the minimum rear setback in conventional districts.High confidence
  • Shipping containers are not allowed at a house except as temporary storage during permitted construction.High confidence

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Common questions

Where can a shed or garage go in Fairfax County?
A shed up to 8.5 ft tall can sit anywhere in a side or rear yard. 8.5 to 12 ft needs 5 ft from the lines. Taller needs the district side setback and a rear setback equal to its height. Accessory buildings are capped at 20 ft tall and 50% of the house's floor area on lots of 36,000 sq ft or less.

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…

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.