Engineering and Architecture Services in California for
Accessory Dwelling Units (ADUs)



Green Home Systems Blueprints


To start, a Green Home Systems associate schedules a consultation with you to fully understand your needs.



Once we understand your needs, we deliver plans and drawings for your project. We have quick turnaround time, with the option to track your project in real time.

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We will provide a set of drawings that you may submit to the city to obtain the required permits. Our fixed fee includes addressing all city comments (if any) on our plans until the permit is approved.

Accessory Dwelling Units (ADUs)

ADUs are a secondary dwelling unit with complete independent living facilities for one or more person. They are an innovative, affordable, effective option to increase the value and space of your home. Today ADUs are known by different names: granny unit, granny flat, in-law unit, in-law cottage, mother-in-law apartment, sidekick home, laneway home, backyard guesthouse, backyard cottage or secondary dwelling unit. ADUs are affordable in California as they do not require paying for land, major new infrastructure, structured parking, or elevators. Furthermore, they can provide an additional source of income for homeowners.

What is JADU?

A Junior ADU (or JADU) is a new category of dwelling units created by the State of California. The main difference is that a JADU is not required to have a dedicated bathroom.

Architectural Plans For ADUs

The first step of creating an ADU is to have an architectural plan. If you do not have a plan handy, we are happy to connect you with one of our trusted Architect partners in your area. Our partner architects specialize in various architectural styles and can create an Architectural Permit set for any design styles you have in mind.


Engineering Services for ADUs

We have you completely covered when it comes to the engineering required for the ADU. Our engineers can take your ADU vision and iron out the details to ultimately create the ADU plans for construction. We then work with you across the ADU construction and oversee every step of the project.



Why choose Green Home Systems?

Highly experienced & value engineering

We are a true one-stop engineering shop with expertise in a wide range of specializations in providing ADU Services as listed above. Our experienced engineers design efficient structures and are always looking for value engineering solutions so that customers pay less in construction, materials costs etc.

Responsiveness and quick turnaround

Unlike most companies, we leverage technology, and make every effort to get high-quality plans delivered in weeks — not months. Hey, who said construction has to be painful?

Ability to take on a project anytime

Our proprietary data system and design technology allows us to efficiently forecast and optimize our resources. This means we can take on a project of any size at any time while maintaining quality and schedule.

What our customers are saying

Grow your space with affordable home additions through ADUs

We have huge experience in the ADU space and have helped many of our clients by transforming their current house into their dream space with ADU additions. Each ADU we create is custom built and tailored to your specific needs by our trusted team of engineers.

We Serve all forms of ADUs