cost-guide
Home Addition Cost in San Leandro | Hamilton Exteriors
Home addition cost in San Leandro ranges from $175 to $400 per square foot. Architect-led design-build with itemized pricing. CSLB #1078806.
additions
cost-guide
Second Story Addition Cost Hayward 2026 | Hamilton Exteriors
Second story addition costs in Hayward range from $200 to $400 per square foot in 2026. Get a detailed breakdown of pricing, permits, and timelines.
cost-guide
Second Story Addition Cost in Fremont CA | Hamilton Exteriors
Fremont second story addition costs range from $200 to $400 per square foot in 2026. Architect-led pricing, permit guidance, and seismic requirements.
cost-guide
Second Story Addition Cost in Castro Valley | Hamilton Exteriors
Second story addition costs in Castro Valley range from $200 to $400 per square foot. Get a detailed breakdown of pricing, permits, and seismic requirements
cost-guide
Second Story Addition Cost in Berkeley CA | Hamilton Exteriors
Second story addition costs in Berkeley CA range from $200 to $500 per square foot. Architect-led design-build with itemized pricing. CSLB #1078806.
cost-guide
Second Story Addition Cost in Oakland 2026 | Hamilton Exteriors
Oakland second story addition costs range from $200 to $400 per sq ft in 2026. Architect-led pricing, permit16 weeks. CSLB #1078806. Free on-site estimate.