ADU Builder in Vallejo, CA
Licensed contractor serving Vallejo and surrounding areas in Solano County. Custom ADUs, garage conversions, and home additions built right.
ADU Construction in Vallejo
Vallejo's waterfront location and Bay Area proximity drive rental demand well above the regional average. ADU construction costs here remain lower than neighboring counties, boosting investor returns.
Why Build an ADU in Vallejo?
Increase Property Value
An ADU in Vallejo can add 20–30% to your property value while providing immediate utility as a rental or guest house.
Rental Income
Vallejo rental demand continues to grow. A well-built ADU can generate $1,500–$2,500/month in passive income.
Multi-Generational Living
Keep family close with a private, self-contained unit on your property. Perfect for aging parents or adult children.
Services in Vallejo
ADU Construction
Custom-built accessory dwelling units from 450 to 1,500 SF.
Learn MoreGarage Conversion
Transform your garage into a fully permitted living space.
Learn MoreHome Remodeling
Kitchen, bathroom, and whole-home renovations.
Learn MoreCommercial Construction
Retail buildouts, office renovations, and tenant improvements.
Learn MoreProjects Near Vallejo
We're expanding into Vallejo. Here are recent projects from nearby areas.
Second-Story Attached ADU in Sacramento
ADU Addition in Elk Grove
ADU Addition + Room Remodel in Yuba City
ADU Construction Costs in Vallejo
Custom ADU
From $240/SF
Design-to-build, 450–1,500 SF
Garage Conversion
From $90,000
Fastest path to a rental unit
Financing Available
From $1,500/mo
Multiple lending partners
Get Your Free Estimate in Vallejo
Tell us about your project and we'll provide a detailed estimate within 24 hours.
Common Questions About ADUs in Vallejo
How much does an ADU cost in Vallejo?
ADU construction costs in Vallejo typically run from $240 to $290 per square foot — smaller 1-bedroom builds land near $290/SF, while larger 1,200+ SF builds benefit from economies of scale at around $240/SF. A 500 SF unit starts around $145,000, while a 1,200 SF two-bedroom unit runs about $290,000 at standard finish. Garage conversions start from $90,000. Contact us for a free, detailed estimate for your specific property.
Do I need a permit to build an ADU in Vallejo?
Yes, ADU construction in Vallejo requires building permits from Solano County. California state law (AB 68, SB 13) has streamlined the process, and most jurisdictions must approve compliant ADU applications within 60 days. Result Construction handles all permitting and plan approvals as part of our full-service build process.
How long does ADU construction take in Vallejo?
A typical ADU build in Vallejo takes 4 to 6 months from permit approval to move-in. The permitting phase usually takes 4 to 8 weeks depending on Solano County processing times. Garage conversions are faster, often completing in 2 to 3 months. We provide a detailed timeline during your free consultation.