Home Addition Contractor in West Hollywood - Design, Permits and Build Under One Contract

Fast, Reliable Home Addition Contractor Across West Hollywood

A home addition in West Hollywood typically runs $180,000 to $450,000 depending on scope, square footage, and what’s hiding inside your walls. We’re Lodgewick ADU Builders, the ADU company of the Kingswell family, and we handle room additions, second story additions, bathroom additions, and bump-outs across West Hollywood with a written price before any work starts. Our crews know the bungalow courts off Norton Avenue, the dingbat apartments along Fountain, and the hillside-adjacent blocks near Sunset the way only a local team can. Call (254) 602-5618 for a free estimate, and Russ Delmar will walk you through what your lot can actually support.

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Why Lodgewick ADU Builders Is West Hollywood’s Preferred Home Addition Contractor Company

West Hollywood is a 1.9-square-mile city where every lot has history, and most of it was built before modern codes existed. Our Home Addition Contractor team has opened enough walls here to know what’s coming: knob-and-tube wiring in the 1920s Spanish Colonials, termite-chewed sill plates in the bungalow courts, and shower pans that failed a decade before anyone noticed. That’s why every West Hollywood project starts with an inspection and a contract that includes written allowances for the surprises we know are likely, not a vague promise that “we’ll figure it out later.”

We operate under The Kingswell Guarantee, which means four things in writing: a defined arrival window, a clean job site, a written guarantee on every project, and a price that doesn’t change at the door. If the work isn’t right within 365 days, we come back and make it right. That’s the 365-Day Done Right Promise, and it’s delivered on paper before a single nail is driven. Russ Delmar has been running jobs under this standard since 2010, and West Hollywood homeowners call us specifically because they’ve been burned by contractors who talked a good game and then vanished.

Our crews are background-checked and uniformed, so when someone shows up at your West Hollywood property, you know exactly who they are. A live person answers our phones 24 hours a day, seven days a week. No voicemail loops when you have a question about your build, your permit, or your guarantee.

Bathroom Addition Contractor in West Hollywood

A Bathroom Addition Contractor in West Hollywood adds a full or half bath to a home that was never designed for it, and that usually means working with 1920s through 1960s framing, outdated drain lines, and floor joists cut by decades of prior remodels. In West Hollywood, a bathroom addition on a single-family bungalow lot typically runs $80,000 to $180,000 when the space is adjacent to existing plumbing, and $150,000 to $280,000 when it requires new drain runs, foundation work, or a bump-out. The first thing we check is the shower pan and subfloor condition in any adjacent bath, because a failed pan in a 1930s Spanish Colonial off Norton Avenue usually means water has been working on the framing for years.

Plumbing and Waterproofing Reality

Old West Hollywood homes rarely have intact waterproofing anywhere near a wet wall. When we open a rear wall for a bath addition, we’re almost always looking at corroded galvanized supply lines and cast-iron drains past their service life. We write those replacements into the contract allowance before we start, so the cost is known, not discovered.

Where the Bath Goes

On small WeHo lots, a bathroom addition usually attaches to an existing bedroom wing or occupies what was once a hallway closet or porch. We’ll tell you honestly if the space works for a three-quarter bath versus a full bath with a tub, because on a 5,000-square-foot lot, every square foot of floor space matters.

Bedroom Addition Contractor in West Hollywood

A Bedroom Addition Contractor in West Hollywood builds supplemental sleeping space onto a home where the original floor plan ran out of room, and in this city that almost always means a rear or side-yard addition on a lot that’s already tight. A ground-level bedroom addition in West Hollywood typically runs $120,000 to $300,000 depending on whether it’s a straight bump-out or a cantilevered addition over a carport, and a second-story bedroom addition runs $250,000 to $450,000 because it requires structural engineering, staircase work, and roof tie-in. What most homeowners don’t expect is the electrical discovery: when our crew opened a rear wall on a 1930s bungalow court off Norton Avenue to start a bedroom addition, they found knob-and-tube wiring feeding a 60-amp panel. We’d already written the electrical allowance into the contract, so the new subpanel and rewiring were priced and signed off before we touched another stud.

Open-Wall Allowances, Written Down

We write structural, electrical, and waterproofing allowances into every West Hollywood bedroom addition contract. When we find termite damage at the sill plate, undersized framing from a 1940s build, or branch wiring that hasn’t been legal since the Nixon administration, the cost was already planned for. You approve the work in writing before we proceed. That’s The Kingswell Way: say the price before the work, show up in the window given, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails.

Egress and Title 24

West Hollywood enforces California’s Title 24 energy standards, and a bedroom addition triggers specific egress requirements: the room needs a certain minimum window opening area, a smoke alarm circuit, and in many cases a hardwired carbon monoxide detector tie-in. We pull permits for every bedroom addition and the final inspection is part of our job, not yours.

Trusted Brands We Service in West Hollywood

We work directly with established ADU brands and materials suppliers including Dvele, Cover, and Boxabl, plus James Hardie siding systems for exterior cladding on West Hollywood additions. When a homeowner comes to us with a specific prefab panel system already in mind, we can match it to their lot, budget, and timeline. We keep a running familiarity with each manufacturer’s panel tolerances and foundation requirements, so a Cover or Boxabl module doesn’t turn into a framing headache on a hillside-adjacent West Hollywood lot. We’re a West Hollywood team, not a generic corp office, and we stock common replacement parts locally where it saves you time.

Common Home Addition Contractor Problems We See in West Hollywood Homes

• Rent Stabilization Ordinance exposure on tenant-occupied parcels. West Hollywood’s RSO predates the city’s 1984 incorporation and applies relocation assistance and right-to-return rules to construction that displaces covered tenants. We audit this before design starts, because it can change the entire project budget.
• Open-wall surprises in 1920s to 1940s bungalow stock. Knob-and-tube wiring, aluminum branch circuits, undersized framing, and rotted sill plates are common in the Spanish Colonial and Craftsman courts around Norton and Genesee. Our allowances cover these before they become change orders.
• Soft-story retrofit overlap on dingbat carport conversions. If your West Hollywood building is a 1950s or 1960s dingbat with a carport on pilotis, the city’s mandatory seismic retrofit ordinance may activate alongside your addition permit. That means structural upgrades priced and engineered at the same time, not discovered mid-job.
• Failed waterproofing at old shower pans and wet walls. Most pre-1960 West Hollywood baths have shower pans that failed years ago and have been quietly damaging framing. Any addition that ties into or opens an adjacent bath wall will expose it. We expect this, which is why the waterproofing allowance is standard in our contracts.

Pricing for Home Addition Contractor in West Hollywood, CA

We Also Serve Cities Near West Hollywood

Our crews regularly work in Beverly Hills, Studio City, North Hollywood, and Sherman Oaks, where the housing stock and permit expectations differ from West Hollywood’s density. No matter which city your lot is in, the same Home Addition Contractor in West Hollywood standards apply: written price first, defined arrival window, clean job site, and a written guarantee on every project.

FAQs About Home Addition Contractor in West Hollywood