Home Addition in Saratoga
Custom Home builds home additions in Saratoga at $500-$750 per square foot. Whether you need a second-story addition, ground-floor expansion, or bump-out, our two-phase process delivers 3D visualization and itemized pricing before construction starts.
How much does a home addition cost in Saratoga?
Home additions in Saratoga typically cost $500-$750 per square foot in 2026. A 500 sqft addition ranges from $250K to $375K. Custom Home's design phase locks in your exact cost before construction starts.
Why Expand Your Saratoga Home
Saratoga’s strong property values and desirable neighborhoods make home additions a smart investment. Rather than uprooting to a new location, expanding your current home lets you stay in the community you chose. Silicon Valley’s tech-driven economy supports strong demand for modern, energy-efficient residences.
Custom Home designs and builds home additions with the same two-phase process we use for custom homes. You see the complete addition in 3D and receive itemized pricing before construction begins.
Types of Home Additions We Build in Saratoga
Second-Story Additions
Double your living space by building up rather than out. Second-story additions are ideal when lot coverage limits prevent ground-floor expansion. Custom Home’s structural engineers evaluate your existing foundation to determine what reinforcement is needed.
Ground-Floor Room Additions
Extend your home’s footprint with new bedrooms, family rooms, or home offices. Ground-floor additions integrate with your existing layout and maintain single-level living, which is especially valued in Saratoga.
Bump-Outs and Extensions
Smaller expansions that make a significant difference: extend your kitchen, enlarge a bathroom, or add a sunroom. Bump-outs typically cost less and complete faster than full additions.
Structural Considerations for Saratoga Additions
Saratoga is located in a seismically active region, which means home additions must meet current seismic codes. Custom Home’s engineering team handles foundation evaluation, load-bearing wall modifications, and seismic design for every addition project. Whether you are adding a second story or expanding your footprint, structural engineering is included in our Phase 1 design process.
Saratoga Home Addition Permits
Saratoga’s Community Development Department processes building permits with a focus on design review and compatibility with neighborhood character. Plan check typically takes 4-6 weeks for standard residential projects. Hillside projects may require additional geotechnical review.
Custom Home manages the entire addition permitting process, including structural engineering review, plan submittal, and inspection coordination. Our experience with Saratoga’s requirements helps keep the approval process on track.
Pricing for Home Addition in Saratoga
Home addition costs in Saratoga typically run $500-$750 per square foot, similar to new construction pricing. Second-story additions may cost more due to structural reinforcement requirements. Custom Home's Phase 1 design process locks in exact pricing before construction begins.
Saratoga Permit Requirements
Saratoga's Community Development Department processes building permits with a focus on design review and compatibility with neighborhood character. Plan check typically takes 4-6 weeks for standard residential projects. Hillside projects may require additional geotechnical review. Custom Home manages the full addition permitting process, including structural engineering review.
Home Addition in Saratoga: FAQ
How much does a home addition cost in Saratoga?
Home additions in Saratoga typically cost $500-$750 per square foot. A 400 sqft room addition generally ranges from $200K to $300K. Second-story additions may cost more due to structural reinforcement. Custom Home locks in exact pricing during Phase 1.
How long does a home addition take in Saratoga?
Home additions in Saratoga typically take 6-12 months from design to completion. Second-story additions require 8-14 months due to additional structural work. Custom Home's design phase ensures construction runs efficiently and on schedule.
What is the difference between a bump-out and a full addition?
A bump-out extends an existing room by a few feet, while a full addition creates entirely new enclosed space. Bump-outs are smaller in scope and cost, while full additions offer more design flexibility. Custom Home helps you determine the right approach during Phase 1.