A second story addition is one of the most effective ways to expand your home vertically, especially in California where lot space is limited. Whether you’re looking to add new bedrooms, a home office, a second-floor sunroom, or an entire new living suite, building up allows you to double your square footage without losing yard space.
Adding a second story to your home can significantly increase your property’s value while giving you the flexibility to design a space tailored to your needs. Our team specializes in second story home additions, providing custom layouts, structural planning, and full project management from start to finish.
Common reasons homeowners in California choose a second story house addition include:
1.Gaining additional space for growing families.
2.Creating private suites for multigenerational living.
3.Increasing home value with a major structural upgrade.
4.Preserving outdoor space while expanding living areas.
Adding a second story in California typically costs between $200 and $500 per square foot, depending on the project’s size, structural changes, and finish level. A standard second story addition may start around $80,000, while more complex builds—like second story additions over a garage—can cost significantly more.
We provide detailed estimates tailored to your home, location, and goals. Whether you’re planning a 2nd story home addition in Los Angeles, San Diego, or the Bay Area, our team ensures clear pricing and expert guidance every step of the way.
Planning a second-story addition begins with smart design. At Ataman Studio, we create custom 2nd story addition floor plans that optimize layout, natural light, and flow—whether expanding above your main living area or over the garage.
Our flexible designs accommodate master suites, home offices, rental units, and multigenerational living, while ensuring structural safety, zoning compliance, and seamless integration with your home.
Looking for ideas? We guide you through concepts like open-concept floors, separate entrances, sunrooms, or two-bedroom rental units—tailored to your goals and property.
A second-story addition unlocks new possibilities for privacy, extra space, and stylish upgrades, including:
Discover how a creative, functional second story can transform your home.
Timelines vary, but most projects take between 4 to 9 months depending on complexity and permitting.
We evaluate your foundation and structural conditions during the initial consultation to determine feasibility.
In many cases, yes. We work to minimize disruption and maintain safety throughout the project.
Typically, building permits, structural engineering approval, and zoning clearance are needed. We handle the entire permitting process for you.
Absolutely. We work with you to create a second story that fits your lifestyle, whether it’s additional bedrooms, a home office, or an open living area.
