We Know San Diego ADU Permitting

San Diego ADU Permitting Information

As noted, the state laws applicable in the County of San Diego allow a residential home with a proposed or existing single-family dwelling (SFD) to have a maximum of one accessory dwelling unit or a junior accessory dwelling unit. Also, the County of San Diego Planning and Development Services urges all applicants to contact regional fire departments to ensure that the proposed structure complies with the necessary fire setbacks. In addition, applicants must fulfill the following regulations:


  • You can build an ADU either attached or detached to an existing single-family dwelling on the same legal lot.
  • Homeowners cannot connect any other room, workshop, or storage area to an ADU but a garage without an Administrative Permit authorization.
  • You must provide floor area mathematical computations during the application process. It includes exterior dimensions taken from the outside wall.
  • Homeowners can only build a detached ADU with a maximum height of up to 24 feet. However, there is an exception for multifamily complexes.
  • Homeowners cannot sell the ADU separately unless you divide the lot to create separate dwelling lots. Also, you cannot rent the structure for less than 30 days.

The Benefits Of Building An ADU In San Diego

As noted, adding an accessory dwelling unit is the best thing that can ever happen to your home. So, besides adding property value, what other benefits will you likely experience after completion? They include:


Private Guest Accommodation

Do you have senior parents or grandparents who often visit your home? If so, you would want to accord them a private reception in a comfortable room. A well-constructed ADU provides all the basic amenities that make a comfortable stay, including a kitchen, bathroom, and separate entryway. You can also design your accessory dwelling unit to create a communal outdoor living space. In that case, you can interact with your guests with minimal disruption of your daily routine. After late-night stories, everyone retreats to their quarters.

Reliable Rental Income

You can generate reliable rental income from your accessory dwelling unit. It will give you short-term rental income to supplement your home expenses. However, you may need to check the restrictions of a short-term rent with your municipality and HOA before venturing into it. Alternatively, you can enter into a lease agreement for long-term rental income gains.

Ample Working Space

Sometimes, it gets hard to concentrate on office duties if you’re working from within the main house. You can design your accessory dwelling unit to mimic a typical professional setting that drives focus and productivity. Moreover, you’ll also cut commuting and food expenses associated with working on business premises. Again, how much office rent do you think you can save annually with an ADU office? ADUs are also ideal for work studios and workshops.

Low-Cost Housing

The high cost of living in San Diego can prove stressful for your adult children when they finally want to settle down. Building a detached accessory dwelling unit can help your children achieve a hassle-free transition into adulthood. They can stay there throughout their college days to gain some independence and learn how to save money. Most importantly, they remain close to you at no additional costs, making it possible to watch over them without intruding on their privacy.

Frequently Asked Questions

What permits do you need to build an accessory dwelling unit?
Generally, you will need building permits to erect an ADU in San Diego, including work permits for water and electricity connections.
Do you handle ADU design and permit processing?
Yes, we handle ADU design and permit processing for our clients. Our experts can get involved in your project as much as you need them. Moreover, we can work alongside other independent contractors to bring your investment goal to reality. Even if you have an existing plan, we can work with that option too
Do I need a building permit for an ADU?
Constructing an accessory dwelling unit is nearly the same as erecting a new home, whether you opt for attached, detached, or repurposed garage options. Homeowners must obtain a building permit to guarantee that the new structure conforms to the required zoning, building, health, and safety codes.
How much does it cost to obtain a permit for an ADU?
Permit fees for accessory dwelling units vary, charged at either a fixed rate or inclusive of other costs. Obtaining an ADU permit in San Diego will cost you about a $1,222 fixed charge plus an additional $0.411 per square foot.

ADU Permitting In San Diego

Having extra living spaces by getting an ADU permit in San Diego has never been easier.

Do you need additional information about zoning codes and o requirements for ADUs? You can find them on the San Diego Planning and Development Services website. Or you can contact us with your questions.

Getting an accessory dwelling unit or ADU permit shouldn’t stop you from owning one. It is a lucrative and convenient space that can serve as a guest area to your family dwellings.

Accessory dwelling units are becoming popular for adding value to residential lots. At Organic ADU, permitting ADUs is our specialty. We are experts in managing your ADU project. We can include all the features you desire without sacrificing time and cost.

Let us take the hassle out of San Diego ADU permitting. So you can enjoy your new addition sooner. Get in touch with us today!

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