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Greenfield · Building on your lot

Sheds, garages and other accessory structures in Greenfield

Greenfield limits accessory structures to 16 ft and, together, to 30% of the rear yard, or 25% in the residential estate district.

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Key points

  • Accessory structures: Greenfield limits accessory structures to 16 ft and, together, to 30% of the rear yard, or 25% in the residential estate district.

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

What Greenfield's code says

Greenfield code What Greenfield's code adds
Maximum height
  • No more than 16 feet.
    Applies: For enclosed accessory structures.
    § 17.46.030 · code text
    Enclosed | Varies 1 | 12.5 ft. 2 | 10 ft. 2 | 10 ft. | 16 ft. 2, 3
  • No more than 16 feet.
    Applies: For accessory structures with a solid roof.
    § 17.46.030 · code text
    Solid roofed | Varies 1 | 12.5 ft. 2 | 10 ft. 2 | 10 ft. | 16 ft. 2, 3
  • No more than 16 feet.
    Applies: For landscape features.
    § 17.46.030 · code text
    Landscape features | No minimum | 12.5 ft. | 10 ft. 3, 4 | 5 ft. 4 | 16 ft.
Size or lot coverage
  • All accessory structures together may cover no more than 30% of the actual rear yard.
    § 17.46.030 · code text
    In no event shall the accessory structure(s) collectively exceed a maximum thirty percent (30%) coverage of the actual rear yard area.
  • All accessory structures together may cover no more than 25% of the actual rear yard.
    Applies: In the residential estate zoning district.
    § 17.46.030 · code text
    In the residential estate zoning district, the maximum rear yard coverage is twenty five percent (25%).
Side and rear setback
  • At least 10 feet.
    Applies: For enclosed accessory structures, from interior property lines, including the rear.
    § 17.46.030 · code text
    Enclosed | Varies 1 | 12.5 ft. 2 | 10 ft. 2 | 10 ft. | 16 ft. 2, 3
  • At least 10 feet.
    Applies: For accessory structures with a solid roof, from interior property lines, including the rear.
    § 17.46.030 · code text
    Solid roofed | Varies 1 | 12.5 ft. 2 | 10 ft. 2 | 10 ft. | 16 ft. 2, 3
  • At least 10 feet.
    Applies: For landscape features over 8 feet tall, from interior property lines including the rear. Features 8 feet or less need 5 feet.
    § 17.46.030 · code text
    Landscape features | No minimum | 12.5 ft. | 10 ft. 3, 4 | 5 ft. 4 | 16 ft.
  • At least 3 feet from side and rear property lines, and at least 6 feet between structures.
    Applies: For combustible enclosed or solid-roofed structures of 120 square feet or less, with no part 8 feet or taller.
    § 17.46.020 · code text
    In order to maintain necessary fire breaks, all combustible accessory structures shall be set back a minimum of three feet (3') from side and rear property lines with a minimum six foot (6') separation between structures.
  • At least 3 feet from interior property lines, and at least 6 feet between structures.
    Applies: For combustible landscape features of 120 square feet or less, with no part 8 feet or taller.
    § 17.46.020 · code text
    In order to maintain necessary fire breaks, combustible landscape features shall be set back a minimum of three feet (3') from all interior property lines with a minimum six foot (6') separation between structures.
  • At least as far from interior property lines as the structure is tall.
    Applies: For enclosed and solid-roofed accessory structures over 120 square feet on residential estate property.
    § 17.46.030 · code text
    Enclosed and solid roofed accessory structures (>120 square feet) located on residential estate property shall have a minimum setback from all interior property lines not less than the height of the structure.
No permit needed up to
  • Up to 120 square feet.
    Applies: Enclosed or solid-roofed structures under 8 feet tall, outside a required front yard. Zoning exemption only; a building permit may still apply.
    § 17.46.020 · code text
    Enclosed and/or solid roofed accessory structures that are one hundred twenty (120) square feet or smaller in size with no portion of the structure equal to or greater than eight feet (B') in height.
  • Up to 120 square feet.
    Applies: Landscape features under 8 feet tall. Zoning exemption only; a building permit may still apply.
    § 17.46.020 · code text
    Landscape features that are one hundred twenty (120) square feet or smaller in size with no portion of the structure equal to or greater than eight feet (B') in height.

Who this affects

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Frequently asked questions

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

Greenfield limits accessory structures to 16 ft and, together, to 30% of the rear yard, or 25% in the residential estate district.

General information, not legal advice.

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