ADU in San Diego

How Does ADU in San Diego Work?

An accessory dwelling unit (ADU), granny flat, or “backyard home” is a legal and regulatory term for a secondary house that shares the building lot of a larger, primary home. The unit cannot be bought or sold separately, but they are often used to provide additional income through rent or house a family member. We build our ADU in San Diego with prefabricated construction to save time and money for clients. As ADU BUILDERS, we consider prefabricated construction less disruptive to homeowners and neighbourhoods as we can typically complete a project onsite in a few weeks once the home is built in our factory.

San Diego ADU Cost?

The cost of building an ADUs in San Diego should include design, engineering: structural and civil, permits, fees, land development, grading, utility installation, foundation, and construction of the ADU. If you build a prefab ADU all-in cost Starts at $175,000 and goes up from there depending on custom additions and square footage. If placing a Tiny Home on the property as an ADU cost can be considerably less, but permits may be challenging. 

How to Finance an ADU in San Diego?

 You do have the option of financing a prefab ADU in San Diego, but many will pay cash. If Cash is not an option, ADU financing is typically achieved through:

1. Home Equity Loan

2. Cash our refinance of the Primary residence

3. Home Renovation loan can be used to build a prefabricated (modular) ADU.

4. Tiny Home financing is available through several national banks.

Zoning of ADU’s in San Diego?

State laws have made it easier to build an ADU in every city in California. The City of San Diego ADU Ordinance states you can build an ADU from 800sq ft to 1200sq ft. ADUs can be built on single-family or multifamily residential zoned lots. ADUs are allowed in all residential zones. 

The City of San Diego ADU requirements for parking has been relaxed. Setback Side and Rear have been shrunk to 4’. Permit Fees have been reduced and, in some cases, waived. The bottom line is it’s a good time to add extra space as laws are in your favour. The San Diego ADU laws have been changed recently to allow more ADU’s to be built in southern California. The City of San Diego Pre-approved ADU plans can be found on our website or on the city website!

What is the Difference Between a Tiny Home vs an ADU in San Diego?

Sometimes Nothing! A tiny home, aka a park model, is technically an RV that cannot exceed 400 sq ft. Many cities like San Diego and Los Angeles allow tiny homes/ park models as ADUs. Many of the tiny homes we offer are built to both ANSI and CBC to satisfy local building officials – PLUS, we feel it provides a better-built home. We have many models that include lofts and porches that are not included in the livable space but extend the actual usable space. The ADU designs in San Diego can be very similar to that of a tiny home or a companion unit in San Diego if you wanted them to be. 

Why Choose a Prefabricated ADU?

Prefabricated ADU’s and Tiny Homes are built in a factory by a team that works together on a daily basis. Building a factory makes building an ADU in San Diego more cost and time-efficient. Bulk buying power, Smart designs, Save time, and money! If you are considering adding an accessory dwelling unit (ADU) to your property in San Diego, then prefab adu San Diego offers a unique solution for homeowners living in cities like San Diego. However, in this way, you can maximize the potential of your land. Also, you can use your space without having to go through the traditional process of building from scratch. So that you can make an informed decision about whether this is the right choice for you.

Pros of building a prefab adu San Diego


For many homeowners, building a san Diego prefab adu can be an attractive option. You can add additional space to your property in a modern way. Prefabricated building installation, on the other hand, is typically faster and less expensive than traditional building methods. Similarly, in addition to saving money, you will save time. Furthermore, the cost of prefab adu san Diego varies depending on size and style. Our website MYADU4LESS has a huge selection of designs from which you can choose. Further, we are just a call away, and you can always get the most affordable quotes to make your own ADU.  


Many modular adu san Diego is designed in such a way to ease the process of installation. which leads to less time and lower labor costs during the construction process. Additionally, prefabricated units often come with warranties that cover any potential defects, giving you extra peace of mind. 

Cons of building a prefab adu San Diego

  1. Similar structures

On the downside, prefabricated ADUs are usually limited in terms of design options. They typically come in pre-set sizes and styles. It means you won’t have as much control over the look and feel of your home. Additionally, if you plan to make any changes or additions to the unit once it’s constructed, it can be difficult to find replacement parts or materials that will match the existing structure. 


Adu builders san Diego has the experience to construct much faster. However, this would be much quicker than building an ADU from scratch, which can take months or even years, depending on the complexity of the project. As a result, prefab homes in San Diego are popular among city dwellers. You get numerous benefits, like lower labor costs, reduced construction waste, and lower energy consumption due to improved insulation. All these factors make prefabricated ADUs a great choice for those looking for an efficient and cost-effective way to expand their living space. 

About MYADU4Less:

The Team MYADU4Less is managed by MYADU4Les which is unique in the industry as we are general contractors, ADU contractors in San Diego, licensed Modular Home Factory, licensed Manufactured Home dealers, licensed Modular Home dealers, Tiny Home dealers, and Park Model dealers. Our team is led by 2nd generation contractor and has combined 100+ years of experience in the Prefabricated Construction industry. We are a ONE-STOP-SHOP – we handle everything: design, permits, site construction, home fabrication, transportation, installation, and utility connect 

Call 951-679-9907 or Learn more by visiting website: