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Coronado Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) Information
Overview
Accessory Dwelling Units (ADUs) and Junior Accessory Dwelling Units (JADUs) are also commonly known as secondary units, in-law units, granny flats, or backyard cottages. Unlike carriage houses, ADUs/JADUs include kitchens and serve as fully independent living quarters and may be rented or occupied by family members.What us an ADU?
As set forth in California Government Code §65852.2, an ADU is an attached or detached secondary dwelling unit, located on a lot with a proposed or existing residence, that provides complete independent living facilities. An ADU includes permanent provisions for living, sleeping, eating, cooking and sanitation. A separate entrance from the main home is required.What is a JADU?
As set forth in California Government Code §65852.22, a JADU is a dwelling unit that is contained entirely within an existing or proposed single-family residence. A JADU must have a separate entrance, an efficiency kitchen and sanitation facilities that can be either within the JADU or shared with the existing residence.Eligibility and Processing
ADUs are allowed in single and multi-family zones. JADUs are allowed within single family homes. For processing, submit an ADU/JADU Application in conjunction with a building permit application.Development Standards Quick Facts
See Coronado Municipal Code §86.56.105 for full regulations.Development Standard | Accessory Dwelling Units (ADU) | Junior Accessory Dwelling Units (JADU) |
General | Must conform to all property development regulations of the zone including height, setback, lot coverage, floor area ratio, and landscape unless otherwise noted in Coronado Municipal Code §86.56.105 | |
Number of Units | 1 ADU and 1 JADU may be built on the same lot if they comply with local regulations | |
Maximum Unit Size | 850 square feet for studio or one bedroom,1,000 square feet for 2+ bedrooms. May be attached or detached | 500 square feet Must be contained within the existing or proposed main residence |
Front Setback | Same as existing zoning | |
Rear/Side Setback | Minimum 4’ or the applicable setback for the zone district, whichever is less | |
Height | New detached structure shall not exceed 16’ If attached to primary dwelling, subject to primary dwelling height limit | |
Parking | 1 parking space required If ADU replaces existing garage or parking, replacement spaces shall be provided | No additional parking is required If JADU replaces existing garage or parking, replacement spaces shall be provided |
Ingress/Egress | Exterior access required | |
Kitchen | Kitchen required, including refrigerator, stove/oven, and a sink | Efficiency kitchen required, including a small sink, counter, and appliances |
Owner Occupancy | Owner occupancy not required for applications received before Jan. 1, 2025 | One of the dwellings on the lot must be the principal residence of the owner |
Sale | May not be sold, transferred, or otherwise conveyed separately from primary residence | |
Rental | May be used for rentals of terms of six consecutive months or more | |
Covenant | A recorded covenant is required which prohibits sale or transfer, restricts size, and prohibits rentals of less than six months | A recorded covenant is required which prohibits sale or transfer, restricts size, prohibits rentals of less than six months, and specifies that the either the primary residence or JADU is owner-occupied |
Questions? The Community Development Department is here to help.
Call 619-522-7328, email communitydevelopment@coronado.ca.us, or stop by the counter at 1825 Strand Way.
Accessory Dwelling Units (ADUs) Project Gallery




