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Norwalk · Building on your lot

Sheds, garages and other accessory structures in Norwalk

City rule: residential accessory buildings are limited to 1 story and 16 ft, and enclosed ones to 800 sq ft per property.

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Key points

  • Accessory buildings: City rule: residential accessory buildings are limited to 1 story and 16 ft, and enclosed ones to 800 sq ft per property.

Each rule below links to the section of the Norwalk Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Norwalk's code says

Norwalk code What Norwalk's code adds
Maximum height
  • At most 1 story and 16 feet tall.
    Applies: Accessory buildings and structures in any residential zone.
    § 17.04.205 · code text
    Accessory buildings and structures located in any residential zone shall not exceed one story and 16 feet in height.
Size or lot coverage
  • At most 800 square feet in total per residential property.
    Applies: Enclosed accessory buildings and structures.
    § 17.04.205 · code text
    The total area for enclosed accessory buildings and structures shall not exceed 800 square feet per residential property.
  • At most 600 square feet of accessory buildings per home.
    Applies: Properties with more than 1 detached single-family home.
    § 17.04.205 · code text
    If there is more than one detached single-family dwelling on a property, the total area for accessory buildings shall not exceed 600 square feet per dwelling.
Side and rear setback
  • At least 4 feet from interior side and rear lot lines.
    Applies: Residential zones; corner lots follow the zoning district setbacks.
    § 17.04.205 · code text
    Accessory buildings and structures located in any residential zone shall have a minimum interior side and rear yard setback of four feet.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

How big can a shed or accessory building be in Norwalk?

City rule: residential accessory buildings are limited to 1 story and 16 ft, and enclosed ones to 800 sq ft per property.

General information, not legal advice.

Ask about a specific Norwalk property

Ask GoCodebook how Norwalk's sheds, garages and other accessory structures rules apply to your situation and get an answer that cites the section.

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Norwalk Municipal Code — full text