Custom-Built. NOT PREFAB!
Permitting & Design Included
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Whether you're planning a custom home build, a room addition, or expanding your existing layout we bring your vision to life with precision and care.
Specializing in custom home construction, home additions, and room expansions, we handle every phase from planning and permits to final walkthrough with a focus on craftsmanship, comfort, and long-term value.
Start your new construction or home addition project in [City Name] today with a team that delivers quality without compromise.
Fill out the form above for your free consultation and see how Design By M&M can transform your living space.
Custom Homes
Room Additions
Home Additions
New Construction
WHAT WE BUILD
Design By M&M builds seamless bump-out additions that expand your living space without changing the footprint of your home. Whether it’s a kitchen extension, a larger bathroom, or added square footage in a living area, our home addition contractors in [City Name] deliver tailored expansions that blend perfectly with your existing layout and design.
We design and build front home additions that enhance curb appeal and increase livable space. From new entryways and porches to extended living rooms and home offices, every addition is custom-built to match the architecture of your home and meet your specific needs.
Looking to build up instead of out? Our second-story additions give you more space without sacrificing your yard. Whether you’re adding extra bedrooms, a master suite, or a bonus room, our team handles all the structural planning and construction with precision and care.
From full garage builds to conversions and expansions, we design garage additions that work for your property and your lifestyle. Whether it’s for storage, parking, or livable space above or beside the garage, our garage addition services are built for long-term function and value.
WHY CHOOSE US?
We specialize in custom home building and room additions—handling everything from planning and design to construction—while prioritizing craftsmanship, efficiency, and long-term value. Whether you’re expanding your current home or starting from the ground up, we build around your lifestyle and vision, not cookie-cutter plans. With decades of experience and a growing portfolio of successful builds, we deliver tailored solutions that fit your lot, your needs, and your future.
ADDITIONAL FEATURES
Our homes and additions come fully equipped with essential features like open-concept layouts, custom kitchens, spa-style bathrooms, energy-efficient systems, ample storage, and smart home technology — all built for comfort, function, and long-term value.
Design & Planning
Structural Framing
Custom Layouts
Room Expansions
Garage Conversions
Master Suites
Open Floorplans
Second Stories
Permit Handling
Interior Finishes
Exterior Finishes
Electrical
Decks
Porches
Foundation Work
Turnkey Delivery
Flooring
Plumbing
PROCESS
Explore our collection of completed custom homes, home additions, room expansions, and new construction projects across [City Name] and the Bay Area.
From structural builds to personalized details, every project reflects our commitment to quality craftsmanship, timeless design, and homeowner satisfaction.
F A Q
A custom home build starts from the ground up—tailored to your vision, lot, and layout preferences—while a home addition expands your existing structure with new rooms or living space.
Yes. Most home additions and new constructions require city permits, inspections, and zoning approvals. We handle all permitting and code compliance as part of our process.
Very. Whether you're building an addition or a custom home, we work closely with you to design the layout, select finishes, and ensure the final product matches your goals and lifestyle.
Absolutely. Our room addition contractors specialize in seamless integration—matching materials, rooflines, and architecture to make your addition look like it was always part of the home.
We build bump out additions, front home additions, second story additions, and garage additions. Every addition is custom-designed to fit your needs and property.
Yes. As full-service custom home builders, we handle everything from architectural planning and home building design to foundation, framing, and final walkthrough.
Contact us for a free consultation. We’ll walk you through everything step-by-step.
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