Expanding homes with

custom ADUs &

thoughtful Addition

you live

Thoughtfully designed ADUs that elevate property value, unlock income potential, and make the most of your property.

What we offer

01

Consultation & Planning

We learn about your vision, budget, lifestyle, and project goals.

02

Design & Preparation

We learn about your vision, budget, lifestyle, and project goals.

03

Build with Precision

From foundation to final structure, we bring your vision to life with exceptional craftsmanship

04

Finishing & Handover

We complete every detail, perform final inspections, and walk you through your finished home.

Unlock Your Property’s Potential

Whether you need additional living space, a private guest suite, a home office, or an opportunity to generate rental income, a custom ADU or addition can unlock the full potential of your property. Sun Bay Construction manages the entire process—from design and approvals to construction and completion—bringing together architects, engineers, designers, and craftsmen to create spaces that enhance your lifestyle and add long-term value to your home.

Our work

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5

What our clients say

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5

Exceptional Remodeling Experience

Sun Bay Construction did an amazing job on our remodel. Saeid and his team were professional, honest, and full of great ideas. We’re very happy with the results and highly recommend them for any home renovation project in the Bay Area.

Mike E.

Previous Customer 

Creative Vision, Lasting Quality

Working with Sun Bay Construction was a great experience. Saeid and his team were professional, honest, and knowledgeable throughout the project. Their thoughtful ideas made a real difference, and we couldn't be happier with the final result.

Richard H.

Previous Customer 

Professional Home Transformation

Sun Bay delivered a smooth remodeling experience with a professional, patient, and reliable team. They brought the homeowner’s vision to life with expert guidance and outstanding results, creating a beautiful home they truly love.

Sean M.

Previous Customer 

FAQs

What is an ADU and why should I build one?

An Accessory Dwelling Unit (ADU) is an additional living space on your property, such as a backyard cottage, garage conversion, or attached unit. ADUs can provide extra living space, rental income opportunities, and increase property value.

How much does it cost to build an ADU?

ADU costs depend on size, design, site conditions, materials, and local requirements. We help evaluate your property and create a solution that fits your goals and budget.

Do you handle ADU design, permits, and construction?

Yes. Our team provides a complete ADU solution, including design coordination, permitting assistance, and construction management from start to finish.

How long does it take to build an ADU?

The timeline depends on the ADU type, design complexity, permitting, and construction requirements. Proper planning helps minimize delays and ensures a smoother building process.