Full Remodel of Historic San Francisco Duplex Flat

This lower-level duplex renovation in a century-old San Francisco home reconfigured the layout, added a new bathroom, relocated the kitchen, and upgraded outdated systems. The result: a fully modernized, code-compliant residence that blends thoughtful design with historic preservation.

Services Provided for Project

Residential Remodeling
Residential Architecture
Residential Construction
Company:
Location:
San Francisco
,
CA
Year Finished:2022
Living room of a newly remodeled home 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

Rethinking the Flow

Layout meets lifestyle.

We relocated the kitchen, built a new bathroom, and reconfigured walls to create a more open and usable living space—all tailored to the needs of modern living.

Floor plan of a home remodeled by Global Arch Construction

Bringing the Infrastructure Up to Code

What you don’t see matters most.

Failing galvanized pipes and outdated wiring were replaced with modern plumbing and grounded electrical. GFCI outlets, new lighting, and proper drainage brought safety and performance to every space.

New infrastructure of a newly renovated home by Global Arch Construction

Converting and Creating New Space

Every square foot with a purpose.

We transformed a storage closet into a laundry area with full hookups, venting, and framing reinforcement—maximizing function without expanding the home’s footprint.

A room of a newly renovated house by Global Arch Contruction

Preserving Character While Modernizing

Old soul, new systems.

Throughout construction, we worked under DBI permitting and code requirements, ensuring full seismic, plumbing, and electrical compliance—while protecting the building’s historic architectural charm.

Living room of a newly renovated home by Global Arch Construction

Similar Projects

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Full Remodel of Historic San Francisco Duplex Flat

This lower-level duplex renovation in a century-old San Francisco home reconfigured the layout, added a new bathroom, relocated the kitchen, and upgraded outdated systems. The result: a fully modernized, code-compliant residence that blends thoughtful design with historic preservation.

Services Provided for Project

Residential Remodeling
Residential Architecture
Residential Construction
Location:
San Francisco
,
CA
Year Finished:2022
Living room of a newly remodeled home 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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Peter

Napa

,

CA

"Everything was done professionally and on time… the workmanship surpassed everything we expected."

Historic home renovated by Global Arch Construction

Before & After

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

Residential

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

Rethinking the Flow

Layout meets lifestyle.

We relocated the kitchen, built a new bathroom, and reconfigured walls to create a more open and usable living space—all tailored to the needs of modern living.

Floor plan of a home remodeled by Global Arch Construction

Bringing the Infrastructure Up to Code

What you don’t see matters most.

Failing galvanized pipes and outdated wiring were replaced with modern plumbing and grounded electrical. GFCI outlets, new lighting, and proper drainage brought safety and performance to every space.

New infrastructure of a newly renovated home by Global Arch Construction

Converting and Creating New Space

Every square foot with a purpose.

We transformed a storage closet into a laundry area with full hookups, venting, and framing reinforcement—maximizing function without expanding the home’s footprint.

A room of a newly renovated house by Global Arch Contruction

Preserving Character While Modernizing

Old soul, new systems.

Throughout construction, we worked under DBI permitting and code requirements, ensuring full seismic, plumbing, and electrical compliance—while protecting the building’s historic architectural charm.

Living room of a newly renovated home 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