ADU Designs to Fit Your Home

best adu builders san diego

San Diego homeowners looking to add additional living space to their property have a variety of options in terms of ADU or accessory dwelling unit designs. ADUs bridge the gap between traditional house additions and standalone dwellings, offering flexibility and additional living space without occupying a valuable chunk of land.

ADUs, also known as granny flats, auxiliary apartments, or casitas, are separate living units that are located on the same lot as their primary dwelling. Depending on the particular zoning regulations of a city or county, outdoor accessory dwelling units may be allowed. It typically requires approval and permits to ensure the ADU is up to code.

ADUs can come in different sizes, allowing for multiple amenities and designs for San Diego homeowners to choose from. Whether you’re looking for an elementary, standalone living space or you want to build a high-end granny flat, there are designs to fit every budget and lifestyle.

ADU Contractors is one of the best ADU builders in San Diego, with years of experience in designing and building ADA units. We take care of every detail to ensure that your final product is of the highest quality. Contact us today to learn more about our services!

Here are some popular ADU designs for San Diego homeowners:

1. Studio ADUs

Studio ADUs are typically the most cost-effective option for San Diego homeowners who have limited outdoor space. These units are small and feature a combined kitchen and living area, a bathroom, and a single bedroom. Studio units are perfect for seniors who don’t need a lot of space or young professionals and empty nesters who want a small, efficient living space.

2. One-Bedroom ADUs

One-bedroom ADUs provide San Diego homeowners intending to provide a functional living space while taking full advantage of the outdoors. This type of unit features a separate living area, a kitchen, a full bathroom, and a separate bedroom. The benefits of a one-bedroom ADU include the ability to host visitors and the flexibility of the unit in terms of size and design options.

3. Two-Bedroom ADUs

Two-bedroom ADUs are great for couples or families who need more living space and more than one bedroom. These can range from a small unit with two bedrooms, one bathroom, and a small kitchen to larger units with two or more bathrooms, a kitchen, a living area, and other amenities. Because of their larger size, two-bedroom ADUs are typically more expensive than other ADU categories but may be a better option for those who need more space and amenities.

4. Duplex ADUs

Duplex ADUs are a great option for San Diego homeowners who prefer multiple living spaces or want to rent out one of the units. Duplex units are two separate dwellings that are attached. This type of unit is a great choice for those who want to take advantage of economies of scale and add two units at once without taking up too much outdoor space.

5. Custom-Designed ADUs

For those who want a personalized living space, custom-designed ADUs offer the most flexibility and diversity in terms of design. San Diego homeowners may hire an architect or designer like us to create a unit that fits their requirements, from modern designs to rustic, earthy styles. Custom-designed ADUs come with the added cost of an architect or designer, but for those who want a one-of-a-kind living space, it can be worth the investment.

Regardless of the type of ADU or design chosen, there are certain elements that every ADU should include to ensure that it is safe, functional, and up to code. All ADUs should have a proper electrical system, a functional smoke and carbon monoxide detector, adequate ventilation, and high-efficiency appliances. San Diego homeowners should also remember to check with their local planning regulations to determine what types of ADUs are legal and permitted in their area.


To conclude, ADU designs can provide San Diego homeowners with the perfect solution for adding living space to their property. Whether you’re looking for an accessory dwelling unit for yourself, for a family member, or a tenant, with the right design and permits, you can create an extra living space that meets your needs and fits within your budget.

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