Premium Room Additions in San Marcos
Expand your living space with custom room additions expertly designed and built by Classic Home Contractors, San Marcos’ trusted home expansion specialists.

Transform Your Home with Professional Room Additions in San Marcos
San Marcos’ growing families and evolving lifestyle needs demand thoughtfully designed home expansions that combine seamless integration with your existing structure while enhancing functionality and value. Professional room additions can increase your San Marcos home’s square footage by 20-50% while potentially boosting property value by up to 70% of the project cost – all without the expense and disruption of relocating.
Classic Home Contractors combines architectural vision with construction excellence to create room additions that blend flawlessly with your existing home. We understand the specific considerations for expansion projects in San Marcos, including permit requirements, HOA approvals, structural engineering, and designs that respect both your home’s character and neighborhood aesthetic.
Our Comprehensive Room Addition Services for San Marcos
- Master Suite Additions – Luxurious bedroom expansions with custom bathrooms and closets
- Family Room Expansions – Open, airy gathering spaces for entertaining and relaxation
- Second Story Additions – Vertical expansions that maximize living space without reducing yard area
- Kitchen Expansions – Enlarged culinary spaces with improved workflow and modern amenities
- Home Office Additions – Dedicated professional workspaces with customized features
- In-Law Suites – Multi-functional living spaces with private entrances and amenities
- Sunroom Additions – Light-filled transitional spaces connecting indoor and outdoor living
- Bathroom Additions – New facilities that improve family functionality and morning routines
- Bump-Out Expansions – Modest extensions that maximize space with minimal footprint
Why Choose Our Room Addition Expertise for San Marcos
San Marcos homes deserve expansion specialists who understand the unique architectural styles and building requirements of North County neighborhoods. Our team excels in creating room additions that effectively increase living space while preserving and enhancing your home’s distinctive character.
From modest bump-outs to comprehensive second-story expansions, we provide tailored room addition solutions that address San Marcos homeowners’ space needs while delivering exceptional functionality and seamless integration with your existing structure.
Our room addition design and construction services are available throughout San Marcos including San Elijo Hills, Discovery Hills, Richland, Twin Oaks Valley, San Marcos Creek District, and all surrounding communities. As your local San Marcos renovation specialists, we understand the distinctive architectural requirements, permit processes, and design expectations of each neighborhood.

Start Your Room Addition Project in San Marcos Today!
Ready to transform your home with a professional room addition? San Marcos homeowners trust Classic Home Contractors for design expertise, quality construction, and exceptional craftsmanship.
Call Now or Fill Out Our Form to Get a Free San Marcos Room Addition Consultation and Estimate!
Common Room Addition Questions for San Marcos Homeowners
How long does a typical room addition take in San Marcos? Most projects range from 8-16 weeks depending on size, complexity, and permitting timelines. Our team provides detailed scheduling during the planning phase.
Will my room addition match my existing home? Absolutely. We specialize in seamless integration, carefully matching architectural elements, rooflines, materials, and finishes for a cohesive appearance.
Can I stay in my home during construction? Yes. We implement comprehensive dust control, safety measures, and scheduled work hours to minimize disruption to your daily routine.
Do I need permits for a San Marcos room addition? Yes. Our team handles all permitting requirements with the City of San Marcos, ensuring your project meets all building codes and regulations.
REAL STORIES FROM SATISFIED CUSTOMERS



Family-owned and proudly serving San Marcos
About Us
With our expertise, backed by decades of experience in home remodel and project management, you’re never alone on this journey.
We understand the details of the field and the importance of effective communication, and the importance of respecting your budget and timeline.
Together, we’ll turn your dream home into reality with less stress and more joy.
Our goal is to ensure your journey is not only successful but also an exciting and fulfilling experience every step of the way.


We believe every home has a story and a vision waiting to be realized. Our motto, “Dreams Come True” represents our commitment to turning your ideas into reality.
We are here to help you create the home you’ve always dreamed of.
Contact Us
Reach out today to discuss your ideas and how we can assist you in creating the home of your dreams.