ADU Regulations and Zoning in Del Mar

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Del Mar, California.

Understanding ADU rules in Del Mar

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Del Mar regulations outline specific rules for building an ADU on your property, taking into account factors such as size, setback requirements, and height. 

If you plan to build an ADU in Del Mar, Multitaskr will assist you! Our guide on Del Mar’s ADU regulations provides detailed information about the building requirements for different types of ADUs. Read below to get all the necessary information!

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Basic ADU Regulations in Del Mar

Our guide on Del Mar ADU regulations provides detailed information about the building requirements for different types of ADUs. Read below to get all the necessary information.

General ADU Zoning Information

In Del Mar, properties designated for both single-family and multi-family purposes might meet the criteria necessary for the construction of Accessory Dwelling Units (ADUs).

It is essential to consult the specific ADU zoning regulations applicable to your jurisdiction to ensure compliance. ADU zoning regulations typically address factors such as ADU size, setback requirements, height specifications, and other relevant guidelines. By understanding and adhering to the appropriate zoning regulations, property owners can determine the feasibility and eligibility of constructing ADUs on their designated properties, promoting informed decision-making in the pursuit of additional dwelling unit development.

If you need help navigating and understanding ADU zoning regulations for your jurisdiction feel free to book a quick consultation to get more detailed information or send an email to [email protected]

Number of ADUs allowed in Del Mar

How many ADUs can you build?

The number of ADUs you’re able to build depends on how your lot is zoned:
– Properties designated for single-family use are permitted to add one ADU and one JADU.
– In the case of properties zoned for multi-family use, you may include two new detached ADUs and, additionally, at least one conversion ADU. The conversion ADU entails converting the interior of an existing structure, provided that it doesn’t exceed 25% of the original unit count.

ADU Dimensions and Construction Limitations in Del Mar

What is the maximum size allowed for attached ADUs?

In Del Mar, an attached ADU can have a maximum size of 850 square feet for one-bedroom units and up to 1000 square feet for units with two or more bedrooms.

What is the maximum size allowed for detached ADUs?

In Del Mar, a detached ADU can have a maximum size of 850 square feet for one-bedroom units and up to 1000 square feet for units with two or more bedrooms.

What is the maximum height allowed for attached ADUs?

– The maximum building height for an ADU attached horizontally sharing a common wall with the existing primary dwelling unit at the first story level is 16 feet. The maximum building height for a proposed attached ADU that horizontally shares a common wall with the primary dwelling unit at the second story level shall not exceed 25 feet above grade, or the base zoning requirements, whichever is lower, and in no case shall exceed two stories.

What is the maximum height allowed for detached ADUs?

The maximum building height of a detached ADU shall not exceed 16 feet above grade. On a lot that is within one-half mile walking distance of a major transit stop or a high-quality transit corridor, the maximum building height of a detached ADU, shall not exceed 18 feet above grade.

What are the exterior requirements for ADUs?

Consistency in exterior features, including roofing, trim, walls, windows, and color palette, between the ADU and the primary dwelling unit is required.


ADU Setbacks Requirements in Del Mar

What are the required setbacks for attached ADUs?

ADUs shall comply with the required setbacks of the applicable zone, except that an existing legal non-conforming structure located within the setback, such as a garage or accessory building, may be converted to an ADU and maintain the non-conforming setback, unless a greater setback is needed for compliance with the building and safety standards of the California Building Code and California Fire Code. In all cases, the ADU shall comply with the required coastal bluff setback in the Coastal Bluff Overlay Zone.

What are the setback considerations for newly constructed *detached* ADUs?

ADUs shall comply with the required setbacks of the applicable zone, except that an existing legal non-conforming structure located within the setback, such as a garage or accessory building, may be converted to an ADU and maintain the non-conforming setback, unless a greater setback is needed for compliance with the building and safety standards of the California Building Code and California Fire Code. In all cases, the ADU shall comply with the required coastal bluff setback in the Coastal Bluff Overlay Zone.

Parking Requirements for ADUs in Del Mar

What is the parking requirement for ADUs?

For an ADU, a single parking space can be designated. This parking space can be situated within the setback areas or integrated into an existing driveway as tandem parking. If parking spaces are removed to construct an ADU or transformed into one, they do not need to be replaced.

An ADU does not require a parking space if:
– It is situated within a one-half mile radius of public transportation or within one block of a car-share location.
– It is located in an architecturally and historically significant district.
– It is part of the existing primary residence or an accessory structure.
– It is situated within one block of a car-share vehicle.
– It is in an area where on-street parking permits are mandated but not made available to the occupant of the ADU.

ADU Occupancy Requirements in Del Mar

What is the owner-occupancy requirement for an ADU?

Cities don’t require owner occupancy until 2025. However, should a property have both an ADU and JADU, JADU law requires owner-occupancy of either the newly created JADU, or the single-family residence.

Can I rent out an ADU?

ADUs shall only be rented for a term of at least 30 days.

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Neighborhoods we cover in Del Mar

Del Mar Heights, Stratford Court

92014, 95003

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Need help with the regulations applicable to your property? Our team at Multitaskr is always ready to assist you. Schedule a call with one of our Home Solution Experts today!

Frequently Asked Questions

The following list of frequently asked questions on ADUs might provide the answers regarding financing, zoning feasibility, city regulations, site preparation and construction.

What is an ADU?

An Accessory Dwelling Unit (ADU) is an additional or secondary residential dwelling, either attached or detached, located on the same lot as the primary residence.

What types of ADUs are allowed to be built in Del Mar?

1) Detached: Are standalone structures separated from the main residence. 2) Attached: Are integrated into the primary dwelling. 3) Garage Conversion: Consists of turning an existing garage into a fully equipped living space. 4) JADU: Are independent units up to 500 square feet, located within existing homes.

How much time is required to plan, design, and construct an ADU?

The timeframe can fluctuate depending on various factors, such as the chosen design, construction process, and the scheduling availability of your builder.

What is the price range for an ADU?

The cost of an ADU can vary significantly, taking into account factors such as the ADU's dimensions, design, construction, and the expenses associated with materials and labor.

What are the reasons for considering an ADU as an investment?

Rental Income, Property Value Appreciation, Housing for Family, Friends, or Caregivers and, Opportunity for Downsizing within Your Community.

What are the financing options available for ADU construction?

An Accessory Dwelling Unit (ADU) can be financed through various means depending on your financial situation and preferences. Contact us today to discuss your options and find the best solution.

If you have any further inquiries, please contact us at [email protected] or give us a call at (619) 514-4023. We will be happy to assist you.

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