







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Palms
Adding onto a Palms home means working with lots that were platted in the 1920s, rear alleys that don’t follow a consistent map, and bungalows whose walls hide wiring that predates the modern electrical code. We know this because we open those walls weekly. A home addition in Palms typically runs $180 – $340 per square foot depending on scope, and we give you a written price before any tool touches the house. Call (213) 449-7136 and we’ll walk the lot with you, no pressure, just a clear plan.
Why Seedling ADU Los Angeles Is Palms’s Preferred Home Addition Contractor Company

Homeowners in Palms call us because we treat an addition the way we’d want one treated on our own street: floors covered, dust contained, and a photo of the clean-up sent before the crew leaves. That’s the Cedarwell Care Promise, and it’s not optional on any job we run. Our crews wear shoe covers inside the house, lay drop cloths on every path from the door to the work area, and use pet-safe products wherever there’s a choice. Ben Ortega leads every project from the first walkthrough to the final permit sign-off.
Palms is dense. That matters. Your neighbors are close, your lot is narrow, and your garage probably opens onto an alley. We’ve worked within those constraints enough to know where the city will push back and where it won’t, which saves weeks of back-and-forth once plans are drawn. And because scheduling runs through our Los Angeles office while crews serve Palms locally, a real person answers the phone 24/7 during an active build. No voicemail trees, no waiting until Monday for an answer.
We’re an Home Addition Contractor team that writes allowances into the contract for what we expect to find behind old plaster: knob-and-tube, undersized joists, rotted sill plates. When those show up, the price is already there in writing. If something truly unexpected appears, you approve the change in writing before we proceed. No surprises, no “while we’re in there” conversations that end with a bigger invoice.
Sunroom Addition in Palms
A Sunroom Addition in Palms gives you a bright, climate-buffered room that connects the house to the backyard without the full cost of a conventional room addition, typically $120 – $260 per square foot in this market. Palms’ Mediterranean climate means you’ll actually use a sunroom ten months of the year; the design question is ventilation, not insulation. We open the rear wall, reframe the opening, and tie the new foundation to the existing one with proper flashing before any drywall goes up.
Working Around the Rear Alley
Many Palms lots back onto alleys that were cut for trash pickup and garage access in the 1920s. That’s useful for a sunroom because the rear setback often allows more building depth than the front, and a separate entrance through the alley means the addition doesn’t disturb the front yard or the neighbors on the street side. But the alley-width rules are not applied uniformly across Palms – we check the specific block before we draw anything.
What We Found on a Recent Bungalow
On a 1920s bungalow near the Expo Line, our crew opened the rear wall for a sunroom and found knob-and-tube wiring and rotted sill plates from decades of failed waterproofing. We had already written an electrical and framing allowance into the contract, so the crew re-fed new circuits, sistered the damaged framing, and flashed the new tie-in before drywall, keeping the permit sign-off on schedule. That’s what the written allowance is for.
Room Addition Contractor in Palms

As a Room Addition Contractor working across Palms, we build bedroom additions, family room extensions, and expanded kitchens that fit the lot’s actual constraints, and a ground-floor addition here typically runs $200 – $350 per square foot. Palms lots run deep and narrow, which means the smart addition usually pushes into the backyard rather than the side yard, preserving the narrow side setback while adding usable square footage off the rear. We handle the permit drawings, the structural calcs, and the inspection scheduling so you don’t have to chase the Department of Building and Safety.
Additions on Small Lots
If your lot is 5,000 square feet or less, the addition has to work harder. We look at the detached garage first, because converting or extending it often gives you more usable space per dollar than a brand-new foundation. Where the garage isn’t viable, we design a rear extension that uses the full depth the lot allows while keeping the required rear setback intact.
The Permit Reality
Opening walls in a Palms home triggers code upgrades: smoke detectors, tamper-resistant outlets, arc-fault breakers, and often a new electrical panel if the old one is a Federal Pacific or Zinsco. We price these into the contract from the start. If the inspector requires something beyond the original scope, we show you the correction notice and get your written approval before doing the work. The price you signed is the price you pay unless you approve a change in writing.
Trusted Brands We Service in Palms
For Palms homeowners researching prefab and panelized options, we work directly with Abodu, Cover, Dvele, and Mighty Buildings. That means you can choose a factory-built addition or ADU whose pricing and timeline are fixed before it leaves the manufacturing floor, then let us handle the site work, foundation, and tie-in to your existing home. We keep local material sourcing in place for Palms jobs when it matters, including James Hardie siding and trim for additions that face the street or a shared driveway. If you’ve been researching these brands before calling anyone, we can walk you through the real difference in cost, lead time, and lot fit for each one.
Common Home Addition Contractor Problems We See in Palms Homes
- Knob-and-tube wiring behind the plaster. Palms bungalows from the 1920s and 1930s still carry it in walls and ceilings. It’s not safe once you’re opening walls and adding circuits, and it’s not something to patch around; we re-feed new circuits to the addition and bring the touched areas up to code.
- Rotted sill plates from years of poor flashing. Older Palms homes often have flat stucco transitions where water seeps behind the plate during winter rains. When we tie a new addition in, we cut out the rot, sister the framing, and flash the joint so water can’t follow the seam.
- Alley setback violations from unpermitted garage conversions. Palms alleys don’t follow one consistent width, and a conversion that looks fine on paper can encroach on a service alley the city flags during inspection. We verify the block’s actual recorded alley width before we recommend converting anything.
- Mold and moisture in small, tightly sealed additions. Palms’ mild climate means less insulation is needed, but tightly built additions trap humidity during the winter rainy season. We spec mechanical ventilation and leave a moisture path in the wall assembly so you don’t get mold behind the drywall in year three.
Pricing for Home Addition Contractor in Palms, CA
A home addition in Palms runs $180 – $350 per square foot depending on whether it’s a sunroom, a ground-floor room addition, or a second-story project. A typical 400-square-foot room addition lands between $72,000 and $140,000 including permits, drawings, and structural work. Sunrooms trend lower at $48,000 – $104,000 for a comparable footprint. What moves the number: the condition of the existing foundation, how much old wiring has to come out, and whether the lot’s alley access triggers extra setback review. We give you a written price before work starts, with allowances for the wiring and framing we expect to find, and any change is approved by you in writing before we proceed. Call (213) 449-7136 for a free estimate on your specific lot.
We Also Serve Cities Near Palms
Our crews work regularly in Palms and the surrounding Westside, including Los Angeles, North Hollywood, Studio City, and South Gate. If you’re a few blocks outside Palms proper, call us anyway; we’ll tell you honestly whether we’re the right fit for your project and your street.
Serving Palms, CA - Our Local Coverage Area
We’re based in the Palms 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 Home Addition Contractor in Palms
Expect to bring the touched areas up to current code: new arc-fault breakers, tamper-resistant outlets, hardwired smoke detectors, and often a panel replacement if the existing one is too small or an obsolete brand. We write these allowances into your contract before we start, so the price is already there when the walls come open. Call (213) 449-7136 and we’ll walk you through what your specific house is likely to need.
Often yes, but not always. Palms’ rear alleys were cut for trash and garage access, and many lots can support a separate ADU entrance off the alley, which saves your street frontage. The catch is that alley-width and setback rules are not applied uniformly across Palms, so we verify the block’s recorded alley dimensions before we include that entrance in the plans. Get it wrong and the city flags the addition for encroachment. We check first.
We plan for it. Before we open any wall, we write a framing and electrical allowance into your contract that covers the expected condition of a 1920s – 1940s Palms bungalow. When we find rotted sill plates or undersized joists, we sister the framing, flash the new tie-in, and move forward. If something genuinely unexpected appears beyond the allowance, you approve the change in writing before we touch it. Call (213) 449-7136 to see how an allowance-based contract works on your project.
Because Palms’ winter rains are heavy in short bursts, and a tightly sealed addition traps humidity inside. We spec mechanical ventilation and leave a moisture path in the wall assembly so the new space dries out after wet weather instead of holding condensation behind the drywall. The mild climate means less insulation; the rainy winter means you can’t skip the vapor management. Call (213) 449-7136 for a moisture plan tailored to your addition.
Yes, and this is one of Palms’ quiet advantages. Proximity to the Expo Line puts many lots within a Transit Oriented Communities area, which can mean reduced parking requirements and density bonuses for an ADU included with your addition. We review your specific parcel against the current TOC map before we draw anything, because the incentive applies block by block, not across the whole neighborhood. Call (213) 449-7136 and we’ll check your lot against the TOC map as part of the free estimate.
Written by Ben Ortega, Owner at Seedling ADU Los Angeles, serving Palms and the Westside.









