Home Additions in Lincoln, California

Home Additions & Room Additions in Lincoln, CA

When your family needs more space, Franco and Sons Construction LLC builds home additions in Lincoln and throughout Placer County that look like they were always part of your original home. We handle every aspect of the addition process — from architectural planning and permit coordination to foundation work, framing, electrical, plumbing, and finish carpentry. Whether you need an extra bedroom, a family room expansion, a sunroom, an in-law suite, or an ADU (Accessory Dwelling Unit), our team delivers seamless additions that blend with your existing structure and increase your home's value.

• Room additions and home extensions that match your existing architecture
• Second-story additions for maximum space without expanding your footprint
• Garage conversions into living space, home offices, or guest suites
• ADU (Accessory Dwelling Unit) design and construction
• Sunroom and patio enclosures for year-round enjoyment
• Structural modifications and load-bearing wall removal
• Full permit acquisition, planning, and code compliance
• Foundation work including footings, slabs, and crawl spaces

Home Addition Costs & Planning in Placer County

Home addition costs in the Lincoln and Placer County area vary widely based on the type and size of addition, structural complexity, and finish level. A simple room addition might start around $30,000, while a full second-story addition or ADU can range from $75,000 to $150,000+. Franco and Sons Construction LLC provides detailed written estimates for every project — with a clear breakdown of materials, labor, permits, and timeline. We never use high-pressure tactics, and our estimates include everything so there are no surprise costs. Many homeowners find that building an addition is significantly more cost-effective than selling and buying a larger home, especially in today's market.