Home Additions & ADU in Koreatown - One Fixed Price, Permits Handled

Fast, Reliable Home Additions & ADU Across Koreatown

Adding square footage in Koreatown usually costs between $45,000 and $130,000 depending on whether you’re converting a garage, building a detached ADU, or going up with a second story. For full Koreatown Roofing as part of a second-story addition, we handle that in-house too. The bigger challenge isn’t the price though. It’s finding a contractor who understands that most lots in 90005 are narrow, the buildings are old, and the neighbors are close enough to hear every nail gun. We’ve worked these blocks long enough to know which buildings need seismic consideration before a single wall moves. If you’re weighing an addition or an ADU, call (877) 610-1318 and we’ll walk the property with you before you spend a dime.

Call (877) 610-1318

Koreatown isn’t like the single-family hills above Los Feliz or the wide lots out in the Valley. Here, you’re often adding onto a 1930s stucco apartment building or a mid-century courtyard property with tenants living upstairs while the ground floor sits on open carports. That changes how you frame, how you sequence, and how you keep the job from becoming a nightmare for everyone involved. We plan around occupied units. We pull permits before demo. And we put every scope change on paper before it touches your budget.

Why Barrett & Sons Construction Is Koreatown’s Preferred Home Additions & ADU Company

Tom Barrett started this company in 1998, and his sons run crews on Koreatown jobs today. That’s not marketing language. When you call (877) 610-1318, you talk to a person who knows the difference between a tuck-under parking retrofit on Harvard Boulevard and a standard room addition off Western Avenue. We’re not a franchise dispatching strangers from an out-of-state call center. The owner’s name, address, and license number are published and verifiable. Look us up before you sign anything. That’s the point.

We’ve done enough work between Wilshire and Olympic to know what the Department of Building and Safety will flag on a soft-story building, and we plan for it before the inspector does. Our Home Additions & ADU team has built garage conversions, junior ADUs, and second-story additions throughout 90005. When the city compliance deadline is pressing and your tenants can’t be displaced, you need a contractor who sequences the work around the people still living there. We do that. Ask anyone on your block, or check the reviews. We back every job with a 90-Day Done Right Promise written on the contract, not buried in fine print.

Our Home Additions & ADU Services in Koreatown

ADU Design & Permitting

An ADU in Koreatown starts with the lot. Many parcels here are zoned R3 or R4, which affects setbacks, parking requirements, and maximum floor area. We handle the drawings, the structural calcs, the permits, and the inspections. If your building dates to the 1940s and has never been retrofit, the ADU scope may need to include mudsill bolting or shear wall work to satisfy the city. That’s the kind of thing a general remodeler from outside the neighborhood misses until it’s a change order. We scope it up front.

Garage Conversion ADU

Koreatown has no shortage of open ground-floor carports and under-building garages, and converting that space into a rentable unit is one of the most practical ways to add value. These projects run $30,000 to $80,000 depending on whether the existing structure can be reinforced or needs a full rebuild. The catch here is that many of those carports are exactly what the city’s soft-story ordinance was written to address. We know how to convert the space and satisfy the retrofit requirement in the same permit package, which saves you time and a second round of inspections.

New Detached ADU

A detached ADU on a Koreatown lot usually means a backyard unit or a structure built over a new foundation at the rear of the property. Budget $90,000 to $220,000 for new construction, depending on size, finishes, and whether utilities need to be trenched from the street. On the denser residential blocks off of 8th Street or Vermont Avenue, access for equipment and materials is a real constraint. We plan the staging so the job doesn’t shut down the alley or block your neighbor’s garage. Permit-ready plans and a realistic construction schedule come before we ever break ground.

Junior ADU & Interior Conversion

A junior ADU is often the smartest play for a Koreatown building owner with an underused storage room, utility closet, or a large bedroom that can be legally split. These conversions typically fall between $45,000 and $130,000 as part of a broader addition scope, and they trigger fewer zoning headaches than a detached unit. The tradeoff is that a JADU shares systems with the main building, so we evaluate your panel capacity, water pressure, and sewer line before we agree on a price. If you’re also considering updates to the main unit, our Bathroom Remodeling in Koreatown crew can fold that work into the same permit and the same schedule.

Trusted Brands We Service in Koreatown

When we frame an addition or finish an ADU in Koreatown, the materials carry names you can actually look up. Cambria counters in the kitchenette. Andersen Windows & Doors - Koreatown on the street-facing wall. Belgard pavers on the walkway from the alley gate. We don’t install mystery brands off the back of a van, and we don’t ask you to trust a private label you’ve never heard of. If a product fails, you know who made it, and so do we. That matters when a warranty claim lands two years after the final inspection.

Common Home Additions & ADU Problems We See in Koreatown Homes

• Soft-story retrofits colliding with addition scopes. A carport-level addition on a 1960s walk-up almost always triggers structural review under the city’s mandatory retrofit ordinance. We scope the steel moment frames or plywood shear panels in the first walkthrough, not after demolition reveals the problem.
• Party-wall construction and zero-lot-line setbacks. Many Koreatown buildings share walls with the neighbor, which means an addition’s footing, drainage, and fire rating have to be coordinated across property lines. We flag this before plans are drawn.
• Stucco thermal cracking from the inland heat. Koreatown sits about seven miles from the coast, and the marine layer rarely reaches this far east. Older stucco facades crack, and when you tie new framing into old cladding, the joint fails if the prep isn’t right. We treat that joint like a system, not a patch.
• Occupied buildings with tenants who can’t move. Most ADU and addition jobs here happen on properties that are fully rented. Phasing the work around tenants, their parking, their utilities, and their quiet hours isn’t optional. It’s the job. We’ve done enough of these to have a system for it.

Pricing for Home Additions & ADU in Koreatown, CA

We Also Serve Cities Near Koreatown

Our crews work throughout the neighborhoods around Koreatown, including Los Angeles, Echo Park, Silver Lake, and Hollywood. If you’re a block or two outside 90005 and wondering whether we’ll take the job, just call. We’re usually closer than you think, and we’d rather drive a few extra minutes than have you hire someone who’s never worked in an old LA building. If a kitchen update is part of your addition plan, our Kitchen Remodeling in Koreatown team handles that under the same roof and the same permit.

FAQs - Home Additions & ADU in Koreatown