Room Additions That Expand Your Space — and Possibilities

Need more room to live, work, or grow? We design and build custom additions that blend seamlessly with your home and lifestyle.

Room addition of a house

Add Space Without the Stress

We help you expand your home the right way — with additions that feel natural, meet code, and fit your needs for years to come.

Tailored Layouts

Whether you're adding a bedroom, office, sunroom, or playroom, we design around your lifestyle and floor plan.

Blended Design & Finishes

We match your existing home’s structure, roofline, siding, and interior finishes for a seamless look.

Increase Home Value

Quality additions boost your home’s resale value by adding square footage and function.

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Code-Compliant Construction

We handle all plans, permits, and inspections — ensuring your addition meets local regulations.

Flexible Use for the Future

We design additions that grow with you — easily adaptable for future use as needs change.

Efficient, Clean Process

Our team keeps the site clean and your project moving forward on schedule, with clear communication throughout.

Latest Projects

Explore how we’ve helped Sacramento families add functional, beautiful spaces to their homes — without the need to move.

What Homeowners Say About Our Room Additions

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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

Our Process Makes Adding a Room Simple

From concept to completion, we take care of everything — so your addition fits your home and your life.

Step 1

Consultation & Feasibility

We evaluate your property, discuss your goals, and recommend layout options based on your space and local zoning.

Step 2

Design & Permitting

Our team develops detailed plans, manages permitting, and finalizes all materials and finishes.

Step 3

Build & Finish

We construct your addition with high-quality materials and craftsmanship — delivering a fully finished space ready to use.

Room Addition FAQs

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How long does it take to build a room addition?

Most additions take 2–4 months from permitting to final inspection. Timelines vary based on size, design, and weather.

Do I need a permit for a room addition?

Yes. All room additions require permitting. We handle all drawings, submissions, and inspections for a smooth process.

What types of rooms can you add to my home?

We build bedroom additions, family rooms, offices, sunrooms, laundry rooms, and more — tailored to your needs and home style.

Quality Materials. Trusted Partners.

From framing to windows and finishes, we use durable, high-performance materials from brands we know and trust.

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

Licensed, Insured, and Experienced in Residential Additions

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More About Room Additions

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Sometimes, the home you love just needs a little more space. A well-planned room addition can give your family the extra square footage you need — without the cost or hassle of moving.


At Global Arch Construction, we design and build additions that integrate naturally with your existing layout and aesthetic. Whether you're adding a ground-floor bedroom, a home office, or extending your living area, we bring thoughtful design and solid craftsmanship to every step.


Our team handles everything in-house — from architectural drawings and permits to framing, electrical, and finishing work. We work efficiently and cleanly, always respecting your home and keeping you informed throughout the process.


The result? A space that feels like it was always part of your home — built to meet your needs today and flexible enough to adapt to whatever comes next.

Ready to Add More Living Space?

Let’s build a room addition that gives your family more space to live, work, and relax — without leaving the home you love.

Get a Free Estimate