Home Addition & ADU Expansion
Global Arch Construction completed a major remodel and home addition at this Mill Valley residence, transforming the original single-story into a modernized home with a new two-story attached ADU. The scope included structural upgrades, new living space, a covered carport, and full electrical and plumbing improvements.
See the Transformation
Explore photos of the finished space, construction details, and everything in between. Every image tells the story of thoughtful craftsmanship.
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Video Overview
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A Few Words From Happy Customers
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How We Brought This Project to Life
Site Visit & Customer Needs
We began with an on-site consultation to understand the homeowner’s goals: expand the house, add an ADU for flexible living, and ensure the remodel was built safely for long-term use.
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Planning the Work
Our team created a construction plan that accounted for the flood-zone location near the Bay. Finished floors were designed to be raised 1 ft. above B.F.E. to protect the home. The plan included demolition of the existing roof and chimneys, relocating the main entry, and adding a 200 sq. ft. covered carport.
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Approval & Permitting
With the customer’s approval, we secured city permits and moved forward with structural and code upgrades: electrical service improvements, plumbing rough-ins, and compliance with state/local requirements.
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Construction & Material Selection
Before construction began, the homeowner selected the stucco color, window style, roofing, patio finishes, and railing systems. Our crew then built the two-story ADU, installed all new exterior finishes, and completed the electrical/plumbing tie-ins. The result: a strong, modern home ready for daily living in a flood-prone area.
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