A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Koreatown, CA
Adding an ADU or room addition in Koreatown means working with dense lots, older housing stock from the 1920s through the 1960s, and a city permit process that moves on its own schedule. Most Koreatown lots are compact, which makes setback rules (the required gap between your new structure and the property line) the single biggest factor in what you can build. Sutton ADU Builders handles the design, permitting, and construction as one team, and we lock your written price before any work begins. Call (472) 248-8213 to talk through what fits on your lot.
Why Koreatown Homes Are Different
Koreatown’s housing stock runs older and tighter than most of Los Angeles. Many homes were built before modern foundation standards, which means a room addition often starts with structural evaluation rather than framing. The soil here also matters: Koreatown sits on a mix of clay-heavy and alluvial soils that shift with wet winters and dry summers, so foundation work needs more attention than it might in a newer development on engineered fill. If your lot is on one of the neighborhood’s many narrow parcels along streets like Wilshire Place or Oxford Avenue, you’re likely working within a 35- to 40-foot width, which changes how an attached addition can connect to the existing house.
Permitting in Koreatown runs through the City of Los Angeles, and ADU permits have been streamlined in recent years, but there are still plan-check waits and HPOZ (Historic Preservation Overlay Zone) restrictions in a few pockets near the Wilshire corridor. Detached ADUs under 1,200 square feet usually qualify for a streamlined review, but anything that changes the street-facing elevation may trigger additional review. We handle that paperwork, and if a permit gets kicked back, you’ll know exactly why and what it costs to fix.
Our Main Koreatown Services
The three jobs Koreatown homeowners call us about most are full home additions, ADUs, and room additions. Each has its own dedicated page, linked below.
Home Addition Contractor in Koreatown
A home addition in Koreatown often means going up rather than out, since many lots here max out their side setbacks quickly. We frame second-story additions, bump-out kitchens, and extended living spaces, and we work with the existing roofline so the new section doesn’t look bolted on. Foundation work on Koreatown’s clay soil frequently requires deeper footings than a standard plan would call for, which is exactly the kind of thing we flag before you sign anything. Home Addition Contractor in Koreatown
ADU Builders in Koreatown
Koreatown’s small lots make detached ADUs a smart use of otherwise-unused backyard space, but the same compact geometry that makes them attractive is what makes them tricky. A typical Koreatown rear yard leaves room for a 400- to 800-square-foot ADU, and that size range opens up prefab options from Abodu and Cover that can cut months off a traditionally framed build. Garage conversions are also common here, since many homes still have the original single-car garage that’s too tight for a modern car. ADU Builders in Koreatown
Room Addition Contractor in Koreatown
A single room addition in Koreatown usually means adding a bedroom, a home office, or a second bathroom off the back of the house. These projects run into the same setback and foundation realities as larger additions, but the permitting path is often simpler when the addition doesn’t alter the front elevation. On a typical Koreatown lot, a 200- to 400-square-foot room addition can usually be designed to stay within the rear-yard setback without needing a variance. Room Addition Contractor in Koreatown
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Koreatown
We service and install ADU systems from Abodu, Cover, Dvele, and Mighty Buildings, plus Tuff Shed conversions and James Hardie exterior cladding. Parts for common prefab models are stocked at our Los Angeles dispatch facility, so warranty follow-ups in Koreatown don’t wait on cross-country shipping. Our brands page has the full breakdown.
Pricing for ADU Company in Koreatown, CA
| Service | Typical range in Koreatown |
|---|---|
| Detached ADU, 400 – 600 sq ft | $180,000 – $260,000 |
| Detached ADU, 600 – 900 sq ft | $240,000 – $320,000 |
| Garage conversion ADU | $120,000 – $180,000 |
| Prefab ADU (Abodu, Cover, Dvele, Mighty Buildings) | $200,000 – $380,000 installed |
| Foundation repair / retrofit before addition | $8,000 – $30,000 |
| Structural engineering and plans | $6,000 – $14,000 |
| Home addition (ground-up room build) | $280 – $420 per sq ft |
| Room addition, 200 – 400 sq ft | $70,000 – $160,000 |
| Second-story addition | $300 – $500 per sq ft |
What pushes costs up in Koreatown: clay-soil foundation upgrades, HPOZ design review in protected pockets near Wilshire, and the tight access on many narrow lots that limits where a crane or concrete truck can sit. What doesn’t push costs up is surprise billing. Sutton delivers a written price before any work starts, and that number doesn’t move unless you change the scope.
Neighborhoods We Serve in Koreatown
We cover all of Koreatown, including the pockets that feel like their own small villages once you’re off Wilshire and Olympic. Typically we can have a crew on-site for an assessment within a week of your call.
- Wilshire Center
- Harvard Heights
- Little Bangladesh
- Oxford Square
- Western Avenue corridor
Service Area – Cities Near Koreatown
Sutton ADU Builders works throughout central Los Angeles, and we take on ADU and addition projects in Los Angeles, CA at large, plus surrounding communities including Long Beach, CA, Anaheim, CA, and Riverside, CA. If you’re just outside Koreatown and aren’t sure whether we cover your street, call us and we’ll tell you straight.
Serving Koreatown, CA - Our Local Coverage Area
We’re based in the Koreatown area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Koreatown
Most Koreatown ADU projects take 6 to 14 weeks to get through City of Los Angeles plan check before construction starts, depending on whether you’re doing a prefab install or a custom build. We handle the permit submission for you and give you a realistic timeline at the first site visit. Call (472) 248-8213 for a site assessment.
Only if your property falls within a Historic Preservation Overlay Zone, which covers a small number of Koreatown blocks near the Wilshire corridor. Most Koreatown lots are outside HPOZ boundaries, and standard ADU permit streamlining applies. We check your address against the current overlay map before quoting.
Yes. We serve all Koreatown ZIP codes and surrounding neighborhoods, with crews dispatched from our Los Angeles office. A live person answers every call, day or night, at (472) 248-8213, and a photo-badged, background-checked technician will be the person who shows up at your door.
Call (472) 248-8213 to schedule your free estimate, or reach out through our home page. Miles Hartwell and the Sutton team will walk you through what’s buildable on your Koreatown lot, what it costs, and who exactly will be on your property before the first tool comes out.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Koreatown Customers Say
"They handled the drawings and the permit paperwork for us. All I had to do was pick the finishes."
- Rosa M."Every crew member was vetted and carried a badge, which matters when they are around your family for months. Tidy site every day."
- Daniel F."Itemized estimate with allowances laid out. Final cost was within a hair of the quote."
- Naomi R.
