Custom Home Additions in Santa Rosa

Add Space and Value with Professional Living Area Expansions

When your growing family needs more functional space, custom home additions offer the perfect solution to expand your Santa Rosa property without the hassle of moving to a new neighborhood you love less.



Professional contractors build custom home extensions, second stories, and living space expansions that integrate seamlessly with your existing structure. Full design-to-permit service ensures smooth project flow from initial concepts through final inspection, handling Sonoma County zoning requirements and hillside construction challenges with expertise.

Add space and value to your home — schedule your addition consultation at (707) 477-3984.

How Does Home Addition Construction Work in Santa Rosa?

Every addition project begins with evaluating your property's potential, reviewing local zoning requirements, and creating designs that complement your home's existing architecture while meeting your space needs perfectly. You'll work with professionals experienced with Sonoma County zoning and hillside construction requirements, ensuring your project meets all regulatory standards from foundation to roofline. The construction process includes precise structural integration that makes your addition feel like an original part of your home rather than an obvious afterthought.

Known for precise structural integration and clean exterior finishes, Hilario Construction manages every aspect from architectural design through permit approval and construction completion. Each addition maximizes your available space while respecting setback requirements and neighborhood character that makes Santa Rosa neighborhoods so desirable.

Call (707) 477-3984 today for house addition contractors in Santa Rosa.

What Makes Us Different?

Ideal for growing families or homeowners needing more functional space, every addition project combines technical expertise with creative design solutions.

How do we ensure quality? Precise structural integration ensures your addition looks and feels like original construction rather than an obvious add-on

What experience do we bring? Extensive knowledge of Sonoma County zoning regulations and hillside construction requirements for compliant projects

Why choose local? Understanding of Santa Rosa's diverse neighborhoods and architectural styles ensures additions complement existing home character

What's our approach? Full design-to-permit service eliminates coordination headaches while ensuring smooth project flow from concept to completion

How do we protect your investment? Clean exterior finishes and quality construction methods that enhance property value and neighborhood appeal

Expand your living space without leaving the neighborhood you love. Contact us today to schedule your home addition consultation in Santa Rosa at (707) 477-3984.