Global Announcement Text

San Leandro, California: ADU Regulations

City or County:

San Leandro, California

Date Updated:

11.30.2020

Zoning:

All single-family and multi-family zones

Types of ADUs:

Attached, detached, repurposed and Junior

Stories:

N/A

Lot Size:

No minimum, but must have room on lot to add an ADU outside of the required setbacks.

Maximum ADU Floor Area:

Repurposed: 1,200 sq.ft. 

Single-family, one bedroom/studio: greater of 850 sq.ft. and 50% of primary residence total floor area (not to exceed 1,200 sq.ft.)

Single family, two-plus bedroom: greater of 1,000 sq.ft. and 50% of primary residence total floor area (not to exceed 1,200 sq.ft.)

JADU: 500 sq.ft.

Note: An ADU greater than 800 square feet is required to comply with the maximum lot coverage, floor area ratio (FAR), and minimum open space requirements established by the zoning district in which the property is located, with the exception of repurposed ADUs on a two-family or multi-family parcel.


Bedroom:

No min/max

Storage:

No min/max

Kitchen:

Attached/Detached/Repurposed: Full kitchen with Fridge + Stove (220-volt or gas) + Counters

Junior: Efficiency with Fridge + Cabinets + Counters

Bath:

All ADUs shall include permanent provisions for living, sleeping, eating, cooking, and sanitation.

Note: Drainage and sewer connections should be assessed on a project by project basis.

Parking:

No parking spaces shall be required for an ADU or JADU. No replacement parking spaces shall be required when a garage, carport, or parking structure is repurposed as an ADU.

Setbacks:

1. Minimum 4' side and rear yard setbacks are required for all attached and detached ADUs.
2. Detached ADUs shall maintain a minimum 5' separation from other structures on the parcel.
3. ADUs shall not occupy a required front yard and shall be subject to the driveway visibility requirements of Section 4.08.148 Driveways—Visibility.
4. No setbacks are required for the repurposed portions of an ADU. Any expanded portions of a repurposed ADU shall comply with Subsections C.1 and C.2.

Note: Fire Department regulations should be assessed on a project by project basis.

Height:

Attached: Zoning district
Detached: 16’
Conversion, Junior: Same as existing structure

Location:

N/A

Rear Yard Coverage:

Must comply with yard coverage requirements of the underlying zoning district. An ADU greater than 800 square feet is required to comply with the maximum lot coverage, floor area ratio (FAR), and minimum open space requirements established by the zoning district in which the property is located, with the exception of repurposed ADUs on a two-family or multi-family parcel.

Design:

Attached and/or repurposed ADUs shall incorporate the same roof and exterior wall material, building color(s), door and window trim, and predominate roof form and pitch as the primary dwelling structure. Repurposed garages shall replace garage doors with the same exterior wall material, building color, and door and window trim as the primary dwelling structure. ADUs shall not contain balconies, upper-story decks, or rooftop terraces.

Note: Historic Neighborhoods or Districts should be assessed on a project by project basis.

Entryways:

An ADU or a JADU shall include its own entrance, separate from the main entrance to the primary dwelling structure(s). An exterior stairway proposed to serve an ADU and/or JADU on a second story or higher shall not be visible from the front public right-of-way.

Owner Occupancy:

Not required.

Source Code:

Important Note: Rules and regulations are updated and changed frequently. It’s one of our jobs to be up to speed and navigate those regulations. Let us know if our website isn’t up to date or if you have any information that could help. Cheers!