Skip to content

Seaside · Building on your lot

Sheds, garages and other accessory structures in Seaside

Detached accessory buildings on a residential parcel are limited to 15 feet, and all accessory buildings to 600 square feet in total.

Ask about sheds, garages and other accessory structures in Seaside See coverage

Key points

  • Accessory buildings: Detached accessory buildings on a residential parcel are limited to 15 feet, and all accessory buildings to 600 square feet in total.

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

What Seaside's code says

Seaside code What Seaside's code adds
Maximum height
  • At most 15 feet tall.
    Applies: For a detached accessory building on a residential lot.
    § 17.52.220 · code text
    A detached accessory building shall not exceed 15 feet in height.
Size or lot coverage
  • All accessory buildings together can be at most 600 square feet.
    Applies: On a residential lot.
    § 17.52.220 · code text
    The total floor area of all accessory buildings on a residential parcel shall not exceed 600 square feet.
Side and rear setback
  • At least 3 feet from each side and rear lot line.
    Applies: For detached accessory buildings.
    § 17.52.220 · code text
    An accessory building shall be set back a minimum of three feet from each side and rear lot line.
  • At least 10 feet from the street side property line.
    Applies: For accessory buildings on a corner lot.
    § 17.52.220 · code text
    No accessory building shall be placed or altered on a corner closer than 10 feet from the street side property line.
No permit needed up to
  • Accessory buildings of 120 square feet or less need no Building Permit.
    Applies: Buildings over 120 square feet need a Building Permit before placement.
    § 17.52.220 · code text
    An accessory building exceeding 120 square feet shall require Building Permit approval prior to placement on a site.
Distance from the house
  • At least 5 feet from any home or other building on the same lot.
    Applies: For detached accessory structures.
    § 17.52.220 · code text
    All detached accessory structures shall be at least five feet from any dwelling and/or others buildings on the same lot and/or the same parcel.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

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

Detached accessory buildings on a residential parcel are limited to 15 feet, and all accessory buildings to 600 square feet in total.

General information, not legal advice.

Ask about a specific Seaside property

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

Ask your question

More on building on your lot in Seaside

All building on your lot rules in Seaside

Fences and walls in Seaside

Running a business from home in Seaside

Swimming pools in Seaside

Grading and erosion control in Seaside

Affordable units in new housing (inclusionary) in Seaside

Signs on homes in Seaside

Seaside Municipal Code — full text