Design, permits & construction — we handle everything for your accessory dwelling unit.
Tell us about your project and we’ll respond within 24 hours.
What Homeowners Say
“Reasonable price. We bid out our ADU with four companies and Maison was the clear winner. Their design was gorgeous — sleek, modern.”
Erica Walters
San Jose, CA
“I hired Omer to do a complete remodel of a condo in Palo Alto. He is simply excellent. A++. I have very high standards.”
Samuel Puan
Palo Alto, CA
“We hired Maison Remodeling Group for a full remodel and the experience was solid from start to finish. Communication was great.”
Yotam Vezu
Bay Area, CA
Our Recent Projects
How It Works
Assess your property & goals
Custom plans & 3D renderings
All city approvals handled for you
Expert building with updates
Final inspection & key handover
Common Questions
In San Jose, ADU projects typically range from about $200,000 to $500,000 depending on size, site conditions, and finish level. Detached units with full kitchens and premium finishes are usually at the higher end. Grading, sewer connection, and PG&E coordination can materially affect final cost in Bay Area neighborhoods.
Most ADU projects in San Jose take around 9 to 14 months from planning through final inspection. Design and permit review can take several months before construction starts, especially for custom layouts. Maison Remodeling Group maps timelines around city review stages and long-lead materials to reduce avoidable delays.
Yes. ADUs in San Jose require building and trade permits for electrical, plumbing, and mechanical systems. Projects must also satisfy local zoning, setback, and utility requirements before approval. Proper permitting is essential for legal occupancy and future financing or resale — we handle the entire process for you.
Get a no-obligation estimate from San Jose’s trusted ADU builders. We handle design, permits, and construction — start to finish.
