17+ years in Los AngelesLicense #1047372Reviews on Yelp & Houzz
An ADU in your backyard. For family, or for rent.
KRN designs it, permits it and builds it on one fixed price. One number to call from the first visit to the keys.
Prefer to talk? Call 818-894-2000. We text back within one business day.
How it works. One team from the first visit to the keys.
- Free site visit. We measure the yard, check what the city allows and walk you through your options in person.
- Plans and permits. Drawings, engineering and plan check, handled for you.
- One crew builds it. Daily updates, inspections handled, keys in hand.




Planning to rent it? Run your numbers.
What new-build ADUs near you rent for. The visit swaps these for rent comps on your street.
- 400–500 sq ftStudio or compact one-bedroom
- 600–800 sq ftFull one-bedroom, or a small two-bedroom
- 900–1,200 sq ftTwo bedrooms, two baths, full kitchen
Estimates only. The site visit replaces them with rent comps for your street.
Estimated rent
$2,450 / mo
$27,048 a year after 8% for vacancy and upkeep
Get a real number for my lot →Homeowners on working with KRN.
What homeowners ask before building an ADU
“How do people pay for it?”
Most owners keep their existing mortgage and use a HELOC or home-equity loan behind it. Some pay out of pocket. We'll connect you with our third-party lending partners if you want options.
“Do my property taxes go up on the whole house?”
No. Only the new unit is assessed, at its added value. Your home's existing assessed value stays where it is.
“Are we going to lose the whole backyard?”
Not if we can help it. State rules allow 4-foot side and rear setbacks, so the ADU usually tucks into a corner. You see the site plan, and what yard stays, before anything is signed.
“What if the city won't allow it on my lot?”
That's what the free visit is for. We check zoning, setbacks and utilities before you spend anything. If an ADU doesn't work on your lot, we tell you on the spot.
Get a written price for your lot.
We walk the property, confirm what the city allows and give you a number. If an ADU doesn't work on your lot, we'll say so.
- Free
- No obligation
- License #1047372
Or call 818-894-2000.