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San Leandro · Building on your lot

Building on your lot in San Leandro

San Leandro sets its own limits on fences, accessory structures and home businesses. Limits depend on the zoning district, and a home business needs a home occupation permit and a business license renewed each year.

Key points

  • Fence height: Residential fences: at most 3 feet in front or corner side yards on a street and 7 feet elsewhere; RO District, 6 feet.
  • Accessory structures: In the RD, RM and RS Districts, accessory structures are limited to 15 feet and 500 square feet each, excluding accessory dwelling units.
  • Home businesses: A home business may use 500 square feet or 25% of the floor area, whichever is less; only residents may work on site.

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

Fences and walls

San Leandro code Residential fences: at most 3 feet in front or corner side yards on a street and 7 feet elsewhere; RO District, 6 feet.

All 6 San Leandro rules on fences and walls, with the code text →

Sheds, garages and other accessory structures

San Leandro code In the RD, RM and RS Districts, accessory structures are limited to 15 feet and 500 square feet each, excluding accessory dwelling units.

All 13 San Leandro rules on sheds, garages and other accessory structures, with the code text →

Running a business from home

San Leandro code A home business may use 500 square feet or 25% of the floor area, whichever is less; only residents may work on site.

All 3 San Leandro rules on running a business from home, with the code text →

Swimming pools

San Leandro code What San Leandro's code adds
Setback from property lines
  • At least 5 feet from an interior property line.
    Applies: Applies to an unenclosed pool, hot tub or related equipment in a required rear or side yard.
    § 2.04.344 · code text
    An unenclosed swimming pool, hot tub and related equipment may occupy a required rear yard or side yard but shall not be within five feet of an interior property line or within ten feet of a street property line.
  • At least 10 feet from a street property line.
    Applies: Applies to an unenclosed pool, hot tub or related equipment in a required rear or side yard.
    § 2.04.344 · code text
    An unenclosed swimming pool, hot tub and related equipment may occupy a required rear yard or side yard but shall not be within five feet of an interior property line or within ten feet of a street property line.

Pets, chickens and bees

San Leandro code With a beekeeping permit, at most 3 hives. Yes, up to 4 chickens, no roosters.

All 7 San Leandro rules on pets, chickens and bees, with the code text →

Building in a flood zone

San Leandro code What San Leandro's code adds
Floodplain permit
  • You need a development permit before any construction or development starts in a special flood hazard area.
    § 7-9-400 · code text
    A development permit shall be obtained before any construction or development begins within any area of special flood hazard established in Section 7-9-305.
Building in a floodway
  • Fill and new development are not allowed unless an engineer or architect certifies no rise in base flood elevation.
    Applies: Areas designated as floodways.
    § 7-9-525 · code text
    Prohibit encroachments, including fill, new construction, substantial improvement, and other new development unless certification by a registered professional engineer or architect is provided demonstrating that encroachments shall not result in any increase in the base flood elevation during the occurrence of the base flood discharge.
Height of the lowest floor
  • Lowest floor above highest nearby ground, at or above the FIRM depth number, or at least 2 feet if none.
    Applies: New homes and substantial improvements in an AO zone.
    § 7-9-500 · code text
    In an AO Zone, elevated above the highest adjacent grade to a height equal to or exceeding the depth number specified in feet on the FIRM, or elevated at least two feet above the highest adjacent grade if no depth number is specified.
  • The lowest floor must be at or above the base flood elevation.
    Applies: New homes and substantial improvements in A zones and all other flood zones except AO.
    § 7-9-500 · code text
    In an A Zone, elevated to or above the base flood elevation, as determined by this community.

Grading and erosion control

San Leandro code A grading permit is needed for more than 50 cubic yards. A grading permit is needed for more than 5 cubic yards.

All 7 San Leandro rules on grading and erosion control, with the code text →

Family child care homes

CA state law California law
Zoning
A small or large family child care home is a residential use and a use by right under all local ordinances, including zoning
Business license or fee
A city or county may not charge a business license, fee or tax to run a family child care home
Local rules
Local limits on height, setbacks, lot size, health and safety must be the same as for every other home in the same zone
Small home
Up to eight children, counting the provider's own children under 10 who live there
Large home
7 to 14 children, counting the provider's own children under 10 who live there

Affordable units in new housing (inclusionary)

San Leandro code What San Leandro's code adds
Fee instead of units
  • Median Sales Price of an applicable unit minus the Affordable Ownership Cost, times the fractional inclusionary unit required.
    Applies: For-sale developments of 6 or fewer units; fraction is 0.30 (2 units), 0.45 (3), 0.60 (4), 0.75 (5), 0.90 (6).
    § 6.04.124 · code text
    The fee shall be the Median Sales Price of a dwelling unit in San Leandro, (single family detached, single family attached or condominium, whichever is applicable), minus the Affordable Ownership Cost, multiplied by the fractional inclusionary unit required.
  • Projects of 6 or fewer for-sale units may meet the requirement fully by paying an in-lieu fee.
    Applies: For-sale developments of 6 or fewer units, including inclusionary units.
    § 6.04.124 · code text
    For Residential Developments of a for-sale project of six or fewer units, including Inclusionary Units, the requirements of this chapter may be satisfied by paying an in-lieu fee to the Affordable Housing Trust Fund as provided in Section 6.04.156 Affordable Housing Trust Fund.

Parking spaces required for homes

San Leandro code Only on a paved driveway At most 50 percent of the width of the subject property or 30 feet, whichever is less

All 3 San Leandro rules on parking spaces required for homes, with the code text →

Home alarm permits and false alarms

San Leandro code 15 minutes Established by City Council resolution

All 3 San Leandro rules on home alarm permits and false alarms, with the code text →

Signs on homes

San Leandro code What San Leandro's code adds
Signs that need no permit
  • Street address numbers
    § 4.12.108 · code text
    3. Street address numbers.

Historic homes

San Leandro code Certificate of approval Planning Commission review and approval

All 7 San Leandro rules on historic homes, with the code text →

Other San Leandro rules on this

San Leandro's code also has these chapters. We have not summarized their values on this page yet; read them in the library.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

What are the pool fence and setback rules in San Leandro?

San Leandro's code: At least 5 feet from an interior property line. (Applies to an unenclosed pool, hot tub or related equipment in a required rear or side yard.) (§ 2.04.344); At least 10 feet from a street property line. (Applies to an unenclosed pool, hot tub or related equipment in a required rear or side yard.) (§ 2.04.344).

What are the rules for building in a San Leandro flood zone?

San Leandro's code: You need a development permit before any construction or development starts in a special flood hazard area. (§ 7-9-400); Lowest floor above highest nearby ground, at or above the FIRM depth number, or at least 2 feet if none. (New homes and substantial improvements in an AO zone.) (§ 7-9-500).

Can I run a family child care home in San Leandro?

California law sets this for every city, including San Leandro: Zoning: A small or large family child care home is a residential use and a use by right under all local ordinances, including zoning (Health & Safety Code § 1597.45(a)); Business license or fee: A city or county may not charge a business license, fee or tax to run a family child care home (Health & Safety Code § 1597.45(b)); Local rules: Local limits on height, setbacks, lot size, health and safety must be the same as for every other home in the same zone (Health & Safety Code § 1597.45(e)); Small home: Up to eight children, counting the provider's own children under 10 who live there (Health & Safety Code § 1596.78(c)); Large home: 7 to 14 children, counting the provider's own children under 10 who live there (Health & Safety Code § 1596.78(b)).

Does San Leandro require affordable units in new housing?

San Leandro's code: Median Sales Price of an applicable unit minus the Affordable Ownership Cost, times the fractional inclusionary unit required. (For-sale developments of 6 or fewer units; fraction is 0.30 (2 units), 0.45 (3), 0.60 (4), 0.75 (5), 0.90 (6).) (§ 6.04.124); Projects of 6 or fewer for-sale units may meet the requirement fully by paying an in-lieu fee. (For-sale developments of 6 or fewer units, including inclusionary units.) (§ 6.04.124).

What signs may I put up at my home in San Leandro?

San Leandro's code: Street address numbers (§ 4.12.108).

General information, not legal advice.

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