Cecilia Home can adapt our concepts to meet your vision and create a personalised, comfortable home, especially for you. Just contact your nearest office.

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Who We Are?

We retain the creative energy of a small studio, pinning work up, and exploring new territory. The conversations we have with our clients are often the seedbed for new ideas and directions. We are inclusive, always curious to understand another’s point of view.

With Cecilia Professional Team And Extensive Experience

Cecilia’s home exists to support, promote and advocate for high-quality housing that is ecologically, socially, and financially sustainable. Drawing inspiration from the environment, the practice strives for purity and organic forms










Mason Zheng

Cecilia Home’s chief engineer and Architecture designer, Mason Zheng, started working as a civil engineer in 2000. In 2006, he got a Professional Engineer license in California with the vision to modify the home should be easy and affordable. Over the last 20 years, He has done civil projects, including houses, communication lines, roads, bridges, etc., especially in property addition design. With all the experiences, He started Cecilia Home in 2016 and has made outstanding achievements in the housing field of the Bay Area.

Our Services

We Offer You The Comprehensive Services


Introduce The Cecilia’s Workflow

At Cecilia Home, we do things differently, and it is our people that make the difference.


Get Quote And Sign Contract

Contact us and get a detailed quote, and we will respond to your questions promptly. Sign a smooth contract and start your design.


Site Visit And Measurement Of Data

We will arrange professional designers and surveyors to visit your home to determine the preliminary design and measure the data of your home.


Begin Design And Ongoing Follow-Up

Start architectural design, structural design and mep design with your ideas, and meet with you in stages to discuss.


Submit The Application

Complete all the design and submit the application to city for you to ensure everything goes smoothly.


Revision Of Comments From City

Don’t worry, we will revise all review comments from CITY and resubmit them.

Give you the best reason


Cecilia Home has been perfecting the process, the journey, the outcome. As a result, we have found a better way.

Quality Control

Having an Architect (a registered, licensed, real architect) design your residence.

Extensive Experience

Our experience in feasibility, procurement and permission allow our clients to sit back and enjoy watching their dream home take shape.

Quick Response

We understand your time is valuable, thus we strive to respond quickly to your inquiries.

Process &timeline

We believe that our building process should be an easy-to-follow, transparent and enjoyable the journey.

Some Feedback

What Our Clients Say

Happy Clients

It was unbelievable journey for me! When I first came to Mason, he was very patient and nice man, he give a free consultations and tried his best to helped me make it clear how much would it cost for every single part and how much time it would take for me building the ADUs in the consultations. 

I couldn’t be happier about the service that Cecilia home provided. I was not able to understand the permit apply, with the mason’s team’s service, they solved all this for me, all I need to do is tell them what I want, and they get it for me. I will recommend Cecilia Home to all.

It was exciting and worried at the beginning, excited about our new house, how it was gonna be in the future, worried about the design could not match our needs, but Mason is great, he solved all the problems for us. No worries at all at Cecilia home, we would love to recommend to all my friends and family!

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Remodeling Done Right

Your Professional Housing Expert

Dedicated to providing quality, professional and comprehensive design and build services to our clients. Build your dream home with Cecilia

Our Address

1816 Enclave Place Concord CA 94519




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