Don’t let a lack of space force you out of the neighborhood you love. If you are searching for the best room addition services near me in Midtown, trust the experience, integrity, and craftsmanship of King David Home Builders.
Enhance your home with San Mateo’s trusted experts in room additions. Experience comfort, quality, and craftsmanship with King David Home Builders.
You love your neighborhood. You love the memories you have built in your house. But as your family grows, your career shifts to remote work, or your lifestyle simply changes, those familiar walls can start to feel a little too close together.
When you need more space, packing up and leaving the Midtown community you’ve grown attached to shouldn’t be your only option. Instead of moving, let your home evolve with you.
At King David Home Builders, we believe a house should adapt to the people living inside it. We specialize in designing and constructing premium room additions that not only increase your square footage but deeply enhance the way you experience your daily life.
Add more space, comfort, and value to your home with our professional room additions and home expansion services in Redwood City.




We offer a comprehensive suite of expansion services to solve your specific space limitations:
1. Luxury Master Suite Additions
Reclaim your privacy and create a personal sanctuary. We design and build expansive ground-floor or second-story master suites complete with walk-in closets, spa-inspired en-suite bathrooms, and customized lighting.
2. Family Rooms & Open-Concept Expansions
Is your kitchen and living area too cramped for entertaining? We can bump out your rear or side exterior walls to create breathtaking, open-concept family rooms that seamlessly connect to your outdoor living spaces.
3. Home Offices & Creative Studios
The modern professional requires a dedicated, quiet workspace. We build sound-optimized home offices, artist studios, and study rooms that allow you to separate your work life from your home life without leaving the property.
4. Second-Story Additions
If you don’t have the lot space to build outward, we have the structural expertise to build upward. A second-story addition is the ultimate way to double your living space without sacrificing a single inch of your backyard.
We know that living through a construction project can be stressful. That is why our project managers maintain clear, daily communication with you, ensuring you never have to guess what is happening on your property.
The Vision Consultation: We sit down with you to understand your pain points, your aesthetic desires, and your budget.
3D Design & Engineering: Our architects draft precise blueprints, allowing you to visualize the space before a single hammer is swung.
Permitting & Preparation: We secure all necessary Midtown building permits and prepare your site to minimize disruption to your daily life.
Construction & Master Finishing: Our crews work efficiently and cleanly to bring the blueprint to life, right down to the final coat of paint.
The Final Walkthrough: We don’t consider the job done until you step into your new room and feel completely at home.
The cost of a room addition in Midtown varies significantly based on the square footage, the complexity of the design, and the materials used. Generally, standard ground-floor expansions (like a family room) are more cost-effective per square foot than second-story additions or new bathrooms and kitchens, which require extensive plumbing and electrical work. At King David Home Builders, we provide transparent, itemized estimates after our initial site consultation to ensure there are no hidden fees.
Yes, absolutely. Any structural change, footprint expansion, or significant electrical/plumbing work requires approved permits from local Midtown building authorities. Attempting unpermitted work can lead to heavy fines and make it nearly impossible to sell your home later. King David Home Builders manages the entire permitting process from end-to-end, ensuring your project is 100% compliant with all local zoning codes.
Yes. Expanding your home’s livable square footage is one of the most reliable ways to increase property value. Specifically, adding a master suite, a new bathroom, or modernizing an open-concept living space yields the highest Return on Investment (ROI) in the Midtown real estate market. Furthermore, a seamlessly integrated addition by King David Home Builders drastically improves your home’s curb appeal.
A standard room addition typically takes between 3 to 6 months to complete, depending on the scope of the project. The timeline is generally broken down into three phases:
Design & Permitting: 4 to 8 weeks
Foundation & Framing: 4 to 6 weeks
Interior Finishing & Final Walkthrough: 4 to 8 weeks Weather conditions and material availability can impact this schedule, but our project managers provide continuous daily updates to keep you informed.
Schedule Your Free Home Addition Consultation Today!
More space. More comfort. More value. Let our professional home addition contractors turn your dream into reality.