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Room Additions Designed to Expand Your Living Space

Is your home feeling a little tight? Whether you’re welcoming a new family member, working from home, or simply need more space, a custom room addition can transform your home and your lifestyle. First Choice Home Builders offers room addition construction in San Diego, CA, helping homeowners add space and improve their living experience without moving.

  • Free Consultations & Transparent Quotes

  • Licensed, Bonded & Insured

  • Premium Materials Built for San Diego Weather

  • On-Time & On-Budget Delivery

  • 5-Star Customer Reviews ⭐⭐⭐⭐⭐

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Why San Diego Homeowners Choose First Choice for Room Addition Building?

When it comes to room addition building in San Diego, homeowners trust First Choice Home Builders for a reason. Our commitment to quality, design integrity, and customer satisfaction sets us apart in the local construction industry.

  • Local San Diego Expertise: We understand San Diego’s building codes, zoning laws, and architectural styles, so your addition is both compliant and complementary.

  • Over 30 Years of Construction Experience: Our seasoned team has completed countless room additions in San Diego, from compact expansions to full second-story builds.

  • One Team, Start to Finish: From concepts and permits to demo, install, and punch-list, you’ll have a single point of contact and a reliable schedule.

  • Built to Last: Premium cabinets, countertops, tile, and ventilation—chosen for durability and easy upkeep in our climate.

  • Clear Numbers & Timelines: Transparent pricing, milestone updates, and proactive communication—no surprises.

  • See It Before We Build: Get a free 3D design to preview your layout and finishes with confidence.

Beautiful San Diego Room Addition Built & Remodeled with Care – Free Estimates Available

First Choice Home Builders. Call (619) 432-4096 Today!

With over 30 years of experience, we specialize in custom homes, kitchens, bathrooms, and full remodels that elevate the way you live. Our team combines skilled craftsmanship, premium materials, and clear project management to deliver results that exceed expectations- on time and on budget.

We believe every home should reflect your lifestyle. That’s why we design around your vision, ensuring every detail is built to last. From concept and design to permits and construction, First Choice Home Builders makes the process simple, stress-free, and tailored to you.





OUR REVIEWS

Hear it From Property Owners Just Like You.

First Choice Home Builders has been changing the deck building & remodeling experience with tailor-made customer service and expert, certified and dedicated team that will be there every step of the way

We trusted First Choice with our San Diego bathroom remodel, and the craftsmanship is outstanding.

Dmitriy Marsh

We live in Encinitas but had a rental property in Carlsbad remodeled too. First Choice handled both projects perfectly.

Stephanie Lomeli

We had a design-build project in San Diego, and First Choice guided us through every step. Would definitely recommend First Choice for any house project.

Olga B

Our San Diego home addition turned out better than we imagined. The new space blends seamlessly with the rest of the house.

Elie Nassif

First Choice Home Builders remodeled my San Diego kitchen, and it’s now the centerpiece of our home. The design is beautiful and functional. Im very pleased of the team as they paid close attention to every detail, and the finished product exceeded our expectations.

Brittany Paige

We hired First Choice for a kitchen remodeling in Escondido, and results are stunning! Every detail was handled with care.

Peter Karmazin

Questions? Answers!

Our expert home builders have the answers to all of your remodeling questions. Contact us now to speak to a live person

1. How long does room addition building take?

The timeline depends on the size and complexity of your deck, but most projects take 1-3 weeks from start to finish.

2. What materials do you use for construction?

We offer high-quality wood, composite, PVC, and other decking materials to fit your style and budget.

3. Do I need a permit to build a deck?

In most cases, yes. We handle all necessary permits to ensure your deck is built to code.

4. How much does a new bathroom cost?

Pricing varies based on size, materials, and design. Contact us for a free estimate.

5. Do you offer financing options?

Yes! We provide flexible financing plans to make your dream deck more affordable.

6. How do I get started?

Simply contact us for a free consultation, and our team will guide you through the entire process.

Don't see your question listed above? Call us now, we are available 24/7

Call us now for immediate response & assistance (619) 432-4096

Room addition building can be stressful, we've got your back

We design and build custom room additions that seamlessly expand your living space and match your lifestyle in San Diego, CA, completed by First Choice Home Builders.

01. Master Suite Additions

Upgrade your comfort with a luxurious master bedroom featuring a private bath, walk-in closet, elegant interior finishes, custom lighting, and upgraded flooring throughout.

02. Guest Room Additions

Welcome family and friends with a comfortable guest room that offers privacy, practical layout, custom furnishings, modern styling, tasteful décor, and plenty of space.

03. Home Office Expansions

Create a focused work environment with a custom office built for productivity, organization, tech integration, soundproofing, and ergonomic support.

04. Family Room or Den

Add a cozy retreat for entertainment, family time, and everyday relaxation with a spacious layout, media center, built-in shelving, plush seating, and natural lighting.

05. Kitchen Bump-Outs

Expand your kitchen space to improve flow, increase storage, and add dining areas with seamless integration, upgraded cabinetry, countertop space, lighting, appliances, open shelving, and ventilation.

06. Bathroom Additions

Increase household comfort with a stylish new bathroom that improves function, accessibility, and convenience with modern fixtures, tile flooring, bright lighting, and ventilation.

07. Garage Conversions

Turn your garage into a fully finished space ideal for a home studio, recreation room, or private suite with insulation, drywall, flooring, HVAC, window upgrades, lighting, and secure entry.

08. Second-Story Additions

Build upward to add bedrooms, bathrooms, or bonus rooms while preserving outdoor space and layout with structural reinforcement, efficient layout, insulation, and skylight features.

09. Sunrooms and Enclosed Patios

Enjoy light year-round with a sunroom or patio enclosed for relaxation, entertaining, and space featuring sliding glass doors, screens, ventilation, and tile floors.

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