Room Additions & Extensions
Expand Your Space Without Leaving the Home You Love
Sometimes the home you love just needs a little more room to grow. At Arla Builders Inc., we specialize in expertly designed and seamlessly integrated room additions and extensions that expand your living space without compromising the character, comfort, or structure of your existing home.
Whether your family is growing, you’re working from home, or you simply need more space to live, relax, or entertain, we bring custom solutions that blend beautifully with what’s already there — while adding modern function, style, and long-term value.
Build Room Addition
Adding Rooms
Rooms Extensions
More Room, More Comfort, More Possibilities
Live Bigger Without the Hassle of Moving
The Bay Area is one of the most sought-after — and space-constrained — real estate markets in the country. Moving to a larger home may not be practical, especially when you love your neighborhood, your schools, or your commute. That’s where we come in.
Arla Builders Inc. helps homeowners stay where they are by adding thoughtfully designed space that looks and feels like it was always part of the original home. Whether it’s a single-room bump-out, a multi-room expansion, or a second-story addition, we build with precision, planning, and a deep understanding of Bay Area homes and zoning.
Why Choose Arla Builders Inc.
for Your Home Addition?
Deep Local Expertise
We’ve worked on homes across San Francisco, Oakland, San Mateo, Walnut Creek, and surrounding cities. We understand city and county permitting requirements, local zoning rules, and how to work with California’s strict building codes — so your project stays on track and fully compliant.
Seamless Integration with Your Existing Home
Our additions are built to match — in structure, flow, and finish. We take great care to mirror the materials, scale, and architectural details of your existing home so the new space looks like it’s always been there.
Customized for Your Needs
Every family is different. That’s why every addition we build is uniquely designed to meet your specific goals, whether that’s more bedrooms, a home office, an expanded kitchen, or a full guest suite.
Full-Service Design + Build
From concept to construction, Arla Builders Inc. handles every phase of the project. You won’t need to juggle separate designers, engineers, and contractors — we bring the entire team to your project and keep you informed every step of the way.
Design That Flows — Inside and Out
Great additions don’t just add square footage — they improve how your home works and flows. We design every project with both functionality and visual continuity in mind. That means aligning the roofline, matching the siding or stucco, continuing flooring types, and blending architectural details like trim, windows, and doorways.
The result? A natural extension of your home, not a mismatched bolt-on.
Types of Additions We Commonly Build
While no two projects are exactly the same, we have experience designing and building:
Ground-level extensions
Second-story additions
Bedroom and bathroom additions
Home offices and dens
Family rooms and bonus rooms
Garage conversions and ADUs (Accessory Dwelling Units)
Master suite expansions
Kitchen and dining area extensions
Whether you need to expand outward, upward, or repurpose underused areas of your home, we have the tools, experience, and team to make it happen smoothly.
Benefits of a Room Addition or Home Extension
Adding on to your home offers more than just extra space — it’s a strategic upgrade that can enhance every aspect of your daily life:
Stay in the neighborhood you love without the cost or hassle of moving
Increase your property’s value and resale appeal
Make space for family members, guests, or in-home care
Create a dedicated home office or studio
Expand your kitchen or dining room for better entertaining
Build a master suite retreat with modern comforts
Add a rental-ready space or ADU to generate income
With the Bay Area’s housing market as competitive as it is, investing in your existing property is often the smartest way to get the space you need — while increasing your home’s value over time.