Whole-Home Remodel with Two-Story ADU

Global Arch Construction is transforming a single-story home with an attached two-story ADU—adding two bedrooms, two baths, refreshed curb appeal, and code-compliant comfort. Our unified team (architecture, engineering, permits, and construction) keeps decisions aligned and the schedule moving.

Services Provided for Project

Full Home Remodeling
Residential Architecture
Residential Building Design
Company:
Location:
Mill Valley
,
CA
Year Finished:2025
Modern Home in Mill Valley, CA designed and built by Global Arch Construction

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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Ready to Build Something Great?

Let’s bring your vision to life — get your free estimate today and take the first step toward your finished project.

Get a Free Estimate

Have Questions? We’re Here to Help.

Whether you're exploring ideas or need clarity on the process, our team is ready to provide answers and guidance.

Contact Us

Trusted Products. Proven Performance.

We partner with leading brands known for durability, efficiency, and compliance—so every project benefits from materials and systems that stand the test of time.

Westcoat logo
TCK logo
Schüco logo
Schluter Systems logo
Sauder logo
Pasgo logo
Pacific Home Decor logo
North Glass logo

How We Brought This Project to Life

One Team, Zero Handoffs

Design + build under one roof.

Our architects, engineers, and builders collaborate daily, aligning layout, structure, and constructability in real time. Permit-ready plans reduce corrections and keep momentum.

Blueprints of a modern home designed by Global Arch Construction

Pre-construction that Prevents Delays

Decisions first, materials secured early.

We mapped long-lead items (windows/doors, roofing, electrical, plumbing, cabinets) and placed early POs. Value-engineering options and clear specs minimized change orders and protected the budget.

3D rendering of a modern home designed by Global Arch Construction

Engineered for Flood Zone AE

Raised, resilient, and compliant.

Finished floors were set 1 ft above BFE, with foundation detailing for durability. Title 24, CALGreen, electrical and plumbing upgrades bring the entire project to current code.

Construction process of a modern home by Global Arch Construction

Building What Matters

Space for living, working, and hosting.

The main home is remodeled for better flow; the attached two-story ADU adds a full kitchen, bath, bedroom, and living areas. New garage, covered carport, decks, stucco, windows, and roofing complete the transformation.

Back view of a modern home designed and built by Global Arch Construction

Similar Projects

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Whole-Home Remodel with Two-Story ADU

Global Arch Construction is transforming a single-story home with an attached two-story ADU—adding two bedrooms, two baths, refreshed curb appeal, and code-compliant comfort. Our unified team (architecture, engineering, permits, and construction) keeps decisions aligned and the schedule moving.

Services Provided for Project

Full Home Remodeling
Residential Architecture
Residential Building Design
Location:
Mill Valley
,
CA
Year Finished:2025
Modern Home in Mill Valley, CA designed and built by Global Arch Construction

See the Transformation

Explore photos of the finished space, construction details, and everything in between. Every image tells the story of thoughtful craftsmanship.

No items found.

What Our Client Say

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Grover Barbaran

Corte Madera

,

CA

“As a real estate agent, timing is everything and Global Arch Construction delivered exactly that...”

Open Kitchen Concept by Global Arch Construction

Before & After

See the difference expert remodeling makes—from outdated to outstanding.

Before and after image of a modern home designed and built by Global Arch Construction
Residential

From single-story and limited to expanded, flexible, and future-ready.

Ready to Build Something Great?

Let’s bring your vision to life — get your free estimate today and take the first step toward your finished project.

Get a Free Estimate

Have Questions? We’re Here to Help.

Whether you're exploring ideas or need clarity on the process, our team is ready to provide answers and guidance.

Contact Us

How We Brought This Project to Life

One Team, Zero Handoffs

Design + build under one roof.

Our architects, engineers, and builders collaborate daily, aligning layout, structure, and constructability in real time. Permit-ready plans reduce corrections and keep momentum.

Blueprints of a modern home designed by Global Arch Construction

Pre-construction that Prevents Delays

Decisions first, materials secured early.

We mapped long-lead items (windows/doors, roofing, electrical, plumbing, cabinets) and placed early POs. Value-engineering options and clear specs minimized change orders and protected the budget.

3D rendering of a modern home designed by Global Arch Construction

Engineered for Flood Zone AE

Raised, resilient, and compliant.

Finished floors were set 1 ft above BFE, with foundation detailing for durability. Title 24, CALGreen, electrical and plumbing upgrades bring the entire project to current code.

Construction process of a modern home by Global Arch Construction

Building What Matters

Space for living, working, and hosting.

The main home is remodeled for better flow; the attached two-story ADU adds a full kitchen, bath, bedroom, and living areas. New garage, covered carport, decks, stucco, windows, and roofing complete the transformation.

Back view of a modern home designed and built by Global Arch Construction

Similar Projects

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Ready to Start Your Own Transformation?

Whether you're updating a single room or renovating your entire home or office, we're here to bring your vision to life.

Get a Free Estimate