ADU Construction
ADU Construction in Elk Grove & the Sacramento Area
Karp Construction designs and builds backyard ADUs and garage ADUs in Elk Grove and the Sacramento area, handling plans, permits, utilities and inspections for you. We coordinate the engineering and the city, and our crew builds it from foundation to final inspection.
CSLB #1101266 Licensed, bonded & insured 4.8★ on Google & Yelp
Backyard ADUs, detached or attached
Garage ADUs built above or beside an existing garage
Plans, engineering and city permits handled for you
Utility connections: water, sewer, electrical
Foundation, framing, roofing, siding and full interior finish
Final inspection and sign-off with the city
ADU framing
A real Karp Construction project photo.
The process
From first visit to final walkthrough.
An ADU touches plans, engineering, utilities and the city. Here is how it runs with Karp.
Real projects
ADU Construction project photos
What you can expect
One contractor, from estimate to final inspection.
We oversee your project and coordinate the work, the trades and the city requirements.
Licensed, bonded and insured · Verify CSLB #1101266 (opens in a new tab)
A written scope and estimate
We visit your home, discuss the work with you and follow up with a written estimate, usually the next day.
We oversee the work
We coordinate our crew and licensed specialty trades, from the first walkthrough to the final inspection. You are not left to organize separate contractors.
Plans, permits and inspections
When your project needs them, Karp handles drawings, engineering, city approvals and inspections as part of the job.
Where we work
ADU Construction near you
Questions
ADU Construction questions
Do I need a permit for an ADU?
Yes. Every ADU needs city approval, and Karp handles the whole thing: drawings, engineering, the permit application and each inspection along the way.
How long does an ADU take?
Plan on 2 to 3 months for permitting, then anywhere from a couple of months to about six months of construction, depending on the size of the unit and your city. We lay out the timeline in the written estimate before anything starts.
Can my garage become an ADU?
Often, yes. Many Sacramento-area garages can be converted into a legal ADU with the right plans and permits. We will look at your garage at the free consultation and tell you honestly whether it is a good candidate.
Do you handle the plans and engineering?
Yes. We coordinate the drawings, structural engineering and utility planning, then shepherd the permit through the city. You approve the design; we handle the paperwork.
What happens at the first consultation?
We come to your home, walk the property with you, listen to what you want the ADU for and explains the realistic options. It takes about 30 minutes, it is free, and a written estimate usually follows the next day.
Related services
Free in-home estimate
Tell us about your project.
Start with a free in-home visit and a written estimate for your project.