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Coastal ADU Construction

California

ADU Builders

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Website

https://www.coastaladuconstruction.com/

Coastal ADU Construction is a Bay Area accessory dwelling unit contractor specializing in the design and construction of ADUs for residential properties. As housing needs continue to evolve across California, more homeowners are turning to accessory dwelling units as a practical way to create additional living space, generate rental income, or accommodate extended family members while increasing the long-term value of their property.

Serving homeowners throughout the Bay Area, Coastal ADU Construction focuses specifically on ADU projects — helping clients navigate the planning, design, permitting, and construction process from start to finish.

ADU Solutions Designed Around the Property

An accessory dwelling unit, commonly referred to as a granny flat, backyard cottage, in-law suite, or casita, is a secondary residential living space located on the same property as a primary home. Coastal ADU Construction works with homeowners to identify the most suitable ADU solution based on the lot layout, zoning requirements, and intended use of the space.

Their experience includes several types of ADU projects:

Detached ADUs and backyard cottages
Garage conversions
Attached ADUs connected to the main home
Basement or attic ADU conversions
Expansions of existing secondary structures

Each type of ADU comes with different structural, utility, and permitting considerations. Coastal ADU Construction helps homeowners evaluate which option makes the most sense for their property and long-term goals.

Design-Build ADU Services

Coastal ADU Construction operates as a design-build contractor, managing both the design and construction phases within one coordinated process. This integrated approach simplifies communication and helps reduce delays that can occur when multiple firms are involved separately.

Their ADU services include:

Initial feasibility assessments
Space planning and design
Permit coordination and city approvals
Structural and construction planning
Full ADU construction and project management

The company works closely with homeowners to create efficient and comfortable living spaces while staying mindful of budget, functionality, and local regulations.

Navigating Bay Area ADU Regulations

Building an accessory dwelling unit in the Bay Area often involves navigating complex local zoning codes, setback requirements, and permitting standards. Coastal ADU Construction brings local experience to the process, helping homeowners understand what is possible on their property before construction begins.

Their familiarity with Bay Area ADU regulations allows them to guide projects through planning and permitting more efficiently while helping avoid common issues that can delay approvals.

Functional Spaces with Long-Term Value

Whether the goal is creating housing for family members, building a rental unit, establishing a private guest space, or adding a flexible work-from-home environment, Coastal ADU Construction focuses on delivering practical and well-designed living spaces that integrate naturally with the existing property.

From detached backyard cottages to garage conversions and attached in-law suites, the company works to align every project with the homeowner’s needs, available space, and budget considerations.

For Bay Area homeowners exploring the possibility of building an accessory dwelling unit, Coastal ADU Construction offers a locally focused design-build approach with experience across a wide range of ADU project types.

Business Hours

Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM
Saturday: CLOSED
Sunday: CLOSED

Service Area

San Francisco Bay Area CA

1050 Opportunity Drive, San Francisco, CA 95678

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