ADUs: The Perfect Solution for Additional Living Space

At Simple Design & Build we specialize in designing and building Accessory Dwelling Units (ADUs) that not only enhance the value of your property but also offer an additional source of income or space for family. With over a decade of experience serving the San Diego area, we are your go-to experts for all your ADU needs.

World-class San Diego home remodeling company that specializes in meeting the unique needs of homeowners who need more living or working space.

Expand the footprint of your current home by up to 50% with an attached ADU. Choose a pre-approved floor plan or customize one for your needs.Put open space on your property to better use with detached ADUs up to 1,200 sq. ft. Whether you want an ADU design that feels like an extension of your house or a fresh new take, we’ll help you create a standalone ADU that truly stands out.

The Most Dependable ADU Contractor in San Diego

Sometimes, expanding your living space can be as simple as adding a room to your existing home. Our team at Simple Design & Build specializes in designing and constructing room additions that blend seamlessly with your home’s existing architecture.

Additional Bedrooms

As your family grows, a room addition can provide the extra sleeping space you need.

Home Office

Create a dedicated workspace for remote work or a personal business with a custom-designed home office.

Entertainment Spaces

Indulge in your passions by adding a home theater, game room, or hobby space.

Please enable JavaScript in your browser to complete this form.

Let's meet ! Engage in a conversation with our team to discuss your project.

Build An ADU For Combining Households

An Accessory Dwelling Unit, or ADU, is an independent living space built on the same property as your main residence. ADUs can take the form of a detached unit, attached unit, or even a conversion of an existing structure. Here's why ADUs are the perfect solution for your additional living space needs:

1 Multi-Generational Living

ADUs provide an excellent space for elderly family members or adult children, allowing them to live independently while remaining close to their loved ones.

2 Concept & Ideas

Remaining attuned to your renovation goals, we will develop architectural concepts to evaluate the feasibility of your ideas. This stage empowers us to make necessary adjustments to the design before initiating the actual work. This proactive approach guarantees that you have the chance to refine and solidify your plans before entering the construction phase.

3 Structural Design & Permits

Upon receiving your approval for our designs, we will proceed to prepare engineering and structural plans necessary for San Diego building permits. Simultaneously, we will initiate the procurement of construction materials, taking into account your aesthetic preferences and choices.

4 Construction

Ultimately, your project seamlessly transitions from the design phase to your property! The process commences with demolition and preparatory work, progressing to the actual construction and installation of new materials. Throughout every stage, we take charge of managing all aspects of the build, ensuring you receive consistent updates on the progress.

5 Finished Project

Upon completion, we will conduct final inspections with the relevant officials to ensure compliance. We will facilitate the acquisition of the Certificate of Occupancy and necessary documentation to meet the Code of Compliance requirements.

Comprehensive Remodeling Services:
Transform Your Home Inside and Out


Describe It - Share Your Vision

A free consultation, a preliminary design, and feasibility analysis regarding cost.


Design It - Concept Plans

We’ll provide comprehensive sketches and 3D renderings to visualize what your finished project will look like.


Approve It - Final Plans & Selection

Our team of experts will provide a detailed proposal that outlines the scope of work, timeline, and budget for your approval.


Build It - The Main Event

Once construction is started, our team will work tirelessly to ensure that your project is completed on time and within budget.


Love It - Happily Ever After

Once completed, the finalization of all building and design specifications is done to ensure you are 100% satisfied

Finding the right contractor for your San Diego ADU's

If you’re considering having an ADU built on your property, Simple Design & Build is the company you can trust for exceptional service founded on integrity and the highest standards of professionalism. If you have any questions, call us at

San Diego Home Remodeling & Construction Service Areas

We build and proudly serve all the San Diego County area.

4S Ranch, CA 92127
Bonita, CA 91902
Cardiff-By-The-Sea 92007
Carmel Mt. Ranch/Sable Springs, CA 92128
Carmel Valley, CA 92130
Carlsbad, CA 92008, 92009
Chula Vista, CA 91910, 91911, 91912, 91913
Clairemont, CA 92117
College & Talmadge, CA 92115
Coronado, CA 92118
Del Cerro/Lake Murray 92120
Del Mar, CA 92014
Downtown San Diego, CA 92101
El Cajon, CA 92019, 92020, 92021
Encinitas, CA 92024

Escondido, CA 92025, 92026, 92027, 92029
Ocean Beach, CA 92107
Oceanside, CA 92054, 92056, 92057
Old Town & Bay Park, CA 92110
Olivenhain, CA 92024
Pacific Beach, CA 92109
Imperial Beach, CA 91932
Kensington, CA 92116
La Costa, CA 92009
La Mesa, CA 91941, 91942
Leucadia, CA 92024
La Jolla, CA 92037
Mission Beach, CA 92109
Mission Hills, CA 92103
Mission Valley, CA 92108, 92110

Mira Mesa, CA 92126
North Park, CA 92104
Poway, CA 92064
Point Loma, CA 92106
Rancho Santa Fe, CA 92067
Rancho Bernardo, CA 92127, 92128
Rancho Penasquitos, CA 92129
Spring Valley, CA 92077
Sorrento Mesa, CA 92121
Solana Beach, CA 92075
Santaluz, CA 92127
Scripps Ranch, CA 92131
University City & UTC, CA 92122