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Greenfield · Building on your lot

Building on your lot in Greenfield

Greenfield sets its own limits for accessory structures and home businesses, and requires a building permit for masonry and stone walls. Accessory structure setbacks depend on size, height and material.

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.
  • Home businesses: Greenfield home businesses may use 20% of the home and see 1 client at a time, at most 8 daily; a permit is required.
  • Masonry walls: Greenfield requires a building permit before construction of masonry and stone walls.

Each rule below is marked Greenfield code or CA state law and links to the section it comes from (checked October 2026). General information, not legal advice.

Fences and walls

Greenfield code What Greenfield's code adds
Permit
  • A building permit is required before building masonry and stone walls.
    Applies: For masonry and stone walls, which also need structural footings.
    § 17.52.040 · code text
    Masonry and stone walls must have structural footings, and owner shall obtain a building permit prior to construction.

Sheds, garages and other accessory structures

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.

Running a business from home

Greenfield code What Greenfield's code adds
Space used
  • No more than 20% of the home's total square footage.
    Applies: Counts all business activity, including storage of inventory, equipment, fixtures, office and work space.
    § 17.82.030 · code text
    All activities of the home occupation, including storage of inventory or products and all other equipment, fixtures, office and work space may not exceed twenty percent (20%) of the total square footage of the dwelling unit.
Customer visits
  • 1 client at a time, and no more than 8 per day.
    Applies: For home occupations in general.
    § 17.82.030 · code text
    The number of clients that can be present at the residence shall be limited to one at anyone time, and shall not exceed the maximum of eight (8) per day.
  • No more than 8 visitors a day.
    Applies: For part-time shoe repair, counting visitors who drop off or pick up items.
    § 17.82.040 · code text
    Shoe repair, on a part time basis, providing that no more than eight (8) visitors a day either drop off or pick up such items.
  • Only 1 student may be present at a time.
    Applies: For part-time private lessons.
    § 17.82.040 · code text
    Private lessons, on a part time basis, providing individual instruction in academic subjects, athletics, the arts, crafts, or other similar discipline, provided that only one student may be present for instruction or practice at any time.
  • Only 1 client on site at a time, by appointment only.
    Applies: For a certified massage practitioner working from home.
    § 17.82.040 · code text
    Only one client is on site at a time and by appointment only.
Employees
  • Up to 3 employees.
    Applies: Allowed under the home occupation permit, but they may not work from or report to the home at any time.
    § 17.82.030 · code text
    Employees (up to 3) may be allowed as part of the home occupation permit, however, these employees may not work from the residence or report to the home at any time.
  • 1 resident working on site, with no employees.
    Applies: For furniture repair and restoration, subject to building inspection and fire marshal approval, as applicable.
    § 17.82.040 · code text
    Furniture repair and restoration shall be limited to one occupant working on site and without employees, subject to approval of building inspection and fire marshal, as applicable.
  • 1 resident of the home, part time.
    Applies: For assembly or repair of small electronic, mechanical or garden equipment, or small household appliances.
    § 17.82.040 · code text
    Assembly, repair, or reconstruction of small electronic, mechanical or garden equipment (including lawn mowers), or small household appliances, shall be limited to one occupant of the dwelling on a part time basis, subject to the approval of the chief building inspector and fire marshal, as applicable.
  • 2 residents of the home, part time.
    Applies: For making toys, decorator items, clothing, needlework, handicrafts or similar products with normal household equipment.
    § 17.82.040 · code text
    Manufacture of toys, decorator items, clothing, needlework, handicrafts, or similar products, shall be limited to two (2) occupants of the dwelling on a part time basis using equipment normally found in a residence.
  • Only 1 operator.
    Applies: For beauty shops and barbershops.
    § 17.82.040 · code text
    Beauty/barbershops limited to one operator only.
  • 1 operator.
    Applies: For dressmaking, sewing, tailoring and contract sewing.
    § 17.82.040 · code text
    Dressmaking, sewing, tailoring, contract sewing (1 operator).
Permit
  • A zoning clearance and plan check before operating.
    § 17.82.020 · code text
    Zoning clearance/plan check is required prior to operating any commercial/office related use within a residential neighborhood or zoning district, residential structure or accessory structure thereof within the city in accordance with the provisions of this chapter.
  • A home occupation permit.
    Applies: Before the zoning clearance and plan check is issued.
    § 17.82.030 · code text
    Prior to the issuance of zoning clearance/plan check for a home occupation, the planning director shall find that the proposed home occupation is in compliance with the following criteria:
  • A business license.
    Applies: The home occupation may not start until it has one.
    § 17.82.030 · code text
    The home occupation may not begin operation until a business license has been obtained.

Solar panels and EV chargers

Greenfield code What Greenfield's code adds
Solar permit process
  • Approved administratively when complete and meeting the checklist; only one inspection; apply in person, by mail or electronically.
    Applies: Small residential rooftop solar systems.
    § 15.28.030 · code text
    The applicant for a small rooftop solar energy system may submit the permit application and associated documentation to the city's building division by personal, mailed, or electronic submittal together with any required permit processing and inspection fees.
  • A building permit is required.
    Applies: All solar energy system installations.
    § 15.28.030 · code text
    A building permit is required for all solar energy system installations.

Pets, chickens and bees

Greenfield code What Greenfield's code adds
Bees
  • No, unless specifically allowed by the city's animal rules.
    § 6.12.040 · code text
    It is unlawful for any person to keep or maintain within the city, or permit to be kept or maintained upon land within the city owned by or under the control of such person, a hive of bees, except as specifically permitted under provisions of this chapter.
Coop setback
  • At least 50 feet.
    Applies: Outdoor animal enclosures, from any existing dwelling, pool, patio or other living area on another property.
    § 17.71.050 · code text
    Animal enclosures shall be located at least fifty feet (50') from any previously existing dwelling, swimming pool, patio or other living area on property other than the site.
  • At least 25 feet from a front property line and 10 feet from a street side property line.
    Applies: Outdoor animal enclosures.
    § 17.71.050 · code text
    Animal enclosures shall be located a minimum of twenty five feet (25') from a front property line and ten feet (10') from a street side property line; except that no such setbacks are required in the agriculture, rural lands and open space categories, or in the residential rural or suburban categories outside of urban or village areas.
  • No street setback required.
    Applies: Agriculture, rural lands and open space areas, or rural or suburban residential areas outside urban or village areas.
    § 17.71.050 · code text
    except that no such setbacks are required in the agriculture, rural lands and open space categories, or in the residential rural or suburban categories outside of urban or village areas.
Large animals
  • Animal keeping only in the A-V, R-E, R-L, R-M and R-H districts; husbandry and hobby equestrian facilities only in A-V.
    § 17.71.020 · code text
    Animal keeping is permitted only in the A-V (artisan agricultural/visitor serving), R-E (residential estate), R-L (single-family residential), R-M (multiple-family residential), and R-H (high) density infill) zoning districts.
Pet limit
  • At most 4 dogs and 4 cats per household; animals under 4 months are not counted.
    § 6.12.090 · code text
    A household may possess both dogs and cats, but no more than four (4) of each. For purposes of this section, animals under the age of four (4) months shall not be counted.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

How tall can a fence be in Greenfield?

Greenfield requires a building permit before construction of masonry and stone walls.

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.

Can I run a business from my home in Greenfield?

Greenfield home businesses may use 20% of the home and see 1 client at a time, at most 8 daily; a permit is required.

Do I need a permit for solar panels or an EV charger in Greenfield?

Greenfield's code: Approved administratively when complete and meeting the checklist; only one inspection; apply in person, by mail or electronically. (Small residential rooftop solar systems.) (§ 15.28.030); A building permit is required. (All solar energy system installations.) (§ 15.28.030).

Can I keep chickens or bees at my home in Greenfield?

Greenfield's code: No, unless specifically allowed by the city's animal rules. (§ 6.12.040); At least 50 feet. (Outdoor animal enclosures, from any existing dwelling, pool, patio or other living area on another property.) (§ 17.71.050).

General information, not legal advice.

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