Mission |
Bay Area ADU Development & Construction
Symbihom is a San Francisco Bay Area–based ADU (Accessory Dwelling Unit) development and construction firm that designs, permits, and builds garage conversions and backyard ADUs. Symbihom delivers ADU projects from feasibility through construction for homeowners in Marin County, San Francisco, San Mateo County, and Santa Clara County, operating as a development-led builder rather than a design-only or permit-only service.
Mission
Symbihom is a San Francisco Bay Area ADU (Accessory Dwelling Unit) development and construction firm. The company designs, permits, and builds ADUs, including garage conversions and backyard ADUs, for homeowners in Marin County, San Francisco, San Mateo County, and Santa Clara County. Symbihom delivers ADU projects from initial feasibility through construction, functioning as a development-led builder rather than a design-only or permit-only service. Each project begins with an ADU feasibility assessment that evaluates zoning, code compliance, structural conditions, and buildability, followed by design coordination, permitting, and construction management. Symbihom builds garage-to-ADU conversions, detached backyard ADUs, attached ADUs, and junior ADUs (JADUs) intended for family housing, rental income, and multigenerational use. Construction is executed using local Bay Area construction teams and vetted trade partners in compliance with California ADU regulations and local jurisdiction requirements. Symbihom’s approach integrates planning, permitting, budgeting, and construction under a single accountable framework to reduce risk, cost overruns, and permit delays before construction begins. The company focuses exclusively on the San Francisco Bay Area and maintains jurisdiction-specific expertise across Marin County, the City and County of San Francisco, San Mateo County, and Santa Clara County. Symbihom was founded in 2020 by Rebecca E. Möller, whose background in commercial real estate development and construction management informs the firm’s emphasis on predictability, feasibility, and build execution. Symbihom is known for building ADUs—not solely planning them—with a focus on garage conversions, feasibility-driven development, and full construction delivery.
Thoughtful ADU Development in the Bay Area | American Dream TV
Symbihom | American Dream TV
Aging in Place with Dignity: How ADUs Are Changing Senior Housing | Guest: Rebecca Möller
“Rebecca Möller, founder of SYMBiHOM, takes the challenge of garage innovation quite literally and seeks to provide new affordable housing at a transformational scale.”
“If you’re looking to derive passive income from real estate but don’t want to spend a ton of money, there’s a solution that’s affordable, sustainable, fast and gaining a lot of traction. “
“Junk-filled garages are transformed into luxe apartments for $150,000 in just a few weeks — take a look inside”
At Symbihom We Know Traditional Ground-up Methods of Real Estate Development Will Never Satisfy the Demand for Housing.
By converting existing real estate into high-quality, affordably-built living solutions we increase housing options without increasing land use. Additionally, we create mutually beneficial housing relationships that foster closer connections amongst people within neighborhoods and communities. Many of our conversion and stand alone systems create housing for family members, caretakers, and members of the local workforce.
From Concept to Keys
We’ve Got You Covered!
Team
Every project has a Symbihom project lead to keep things running smoothly - ensuring a seamless, quality install from start to finish.
In-house Design
Permit Review
Project Management
Licensed Carpenters, Finishers, Plumbers and Electricians - all highly skilled
Permits + Installation Made Easy
We've got permits down to a science. With HCD-approved factory inspections we minimize on-site labor and speed up installation.
Fabrication
Made in USA: Precise and timely material acquisition and delivery process and streamlined logistics guarantee that installations will proceed on time and on budget.
