







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Del Aire, CA
Adding an ADU in Del Aire, CA means working with small, post-war lots where every square foot of setback matters and where neighbors are close enough to hear a nail gun. Benson ADU Builders handles the whole process from first sketch to final inspection, with a written price before any work begins. Our Del Aire clients typically explore everything from compact backyard units to attached conversions, and we guide each project through the specific requirements of Los Angeles County’s unincorporated pockets. Call (903) 568-7222 to talk through your Del Aire property.
Why Del Aire Homes Are Different

Del Aire sits in an unincorporated area of Los Angeles County, tucked between the 405, the 105, and the city limits of Hawthorne and El Segundo. That geography matters for construction. The lots here run small, often 5,000 to 6,000 square feet, which means ADU placement decisions get very tight very fast. A detached unit in a Del Aire backyard has to respect side and rear setbacks while still leaving the main house its own breathing room. Many homes in the area were built between the late 1940s and early 1960s, and their original footprints rarely leave a clean, flat building envelope. We regularly see single-story stucco houses with shallow backyards and mature trees that complicate excavation and foundation work.
Because Del Aire is unincorporated, permits run through Los Angeles County rather than a local city planning desk. That means plan checks and approvals follow county timelines, which can differ from what homeowners in neighboring Hawthorne or El Segundo experience. The upside: county ADU rules are generally consistent and predictable, and our team is familiar with how those reviews actually play out. Aircraft noise from nearby LAX means Del Aire homeowners often ask about extra sound insulation in walls and windows, especially for an ADU intended as a rental or a dedicated workspace.
Utility access is another Del Aire-specific factor. Many older homes here have electrical panels that predate modern ADU loads, so a panel upgrade or a separate service drop for the new unit is common. Sewer and water laterals run shallow in the area, and tying an ADU into an existing line sometimes means trenching under a shared driveway or working around a garage that has sat in the same spot since Eisenhower was president.
Our Main Del Aire Services
Most Del Aire homeowners reach out to us about one of three projects: building a new detached ADU, expanding the main house with a home addition, or converting existing space into a room addition. Here is how each one works in this neighborhood.
ADU Builders in Del Aire
Del Aire backyards are compact, so ADU design here leans toward one-bedroom and studio layouts that fit within tight setbacks without sacrificing a usable yard. We build both site-framed and prefab-panel ADUs, which is important in Del Aire because a prefab panel system can cut on-site construction time and reduce the number of trucks squeezing down narrow residential streets. The county’s ADU standards apply, and we handle feasibility, plans, permits, and the build itself. See how a Del Aire ADU works from start to finish on our ADU Builders in Del Aire page.

Home Addition Contractor in Del Aire
A home addition in Del Aire usually means expanding outward or upward on a lot that does not have much room to give. We see a lot of second-story additions here, which make sense given how little buildable yard remains on most parcels. Those projects involve structural engineering, temporary weatherproofing during framing, and careful sequencing so the family can stay in the house during construction. We also do ground-floor bump-outs for kitchens and primary suites. The full scope and cost picture is on our Home Addition Contractor in Del Aire page.

Room Addition Contractor in Del Aire
Room additions in Del Aire often convert an underused patio, den, or garage-adjacent space into a functional bedroom, office, or family room. Because so many Del Aire homes were built with modest square footage, even a 200-square-foot addition changes how a family lives in the house. These projects move faster than full additions and usually require fewer trade inspections, but they still need county permits and a plan that accounts for the home’s existing foundation and roofline. Details are on our Room Addition Contractor in Del Aire page.

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 Del Aire
We build with and service ADU systems from Abodu, Dvele, and Mighty Buildings, which gives Del Aire homeowners researched, brand-name options instead of a single take-it-or-leave-it product. Common components are stocked for quicker turnaround, and we can source panels and cladding to match the project schedule. Learn more on our brands page.
Pricing for ADU Company in Del Aire, CA
| Service | Typical range in Del Aire |
|---|---|
| Detached one-bedroom ADU (site-built) | $180,000 – $300,000 |
| Detached studio ADU | $140,000 – $220,000 |
| Prefab panel one-bedroom ADU (Abodu-style) | $190,000 – $310,000 |
| Prefab panel studio ADU | $150,000 – $230,000 |
| Garage conversion ADU | $120,000 – $190,000 |
| Attached ADU (JADU or add-on unit) | $130,000 – $240,000 |
| Second-story home addition | $250,000 – $450,000 |
| Ground-floor home addition / bump-out | $160,000 – $280,000 |
| Room addition (single room, 200 – 400 sq ft) | $90,000 – $170,000 |
| ADU foundation and utility tie-in only | $30,000 – $55,000 |
Prices in Del Aire run higher than the county average when the project involves upgrading an older electrical panel, trenching for new sewer laterals, or working around trees and tight access. Every estimate we give includes a written price before work starts, so the number you approve is the number you pay.
Neighborhoods We Serve in Del Aire

Del Aire is compact, but the character shifts from block to block. We work throughout the area, including these neighborhoods:
- Del Aire proper (north of 119th Street)
- The Isis Avenue corridor
- Aviation Boulevard adjacent blocks
- The residential pocket east of Inglewood Avenue
- South Del Aire near El Segundo Boulevard
Response times for estimates in Del Aire are typically within a few business days, and scheduling is coordinated from our Los Angeles office so crews can reach Del Aire quickly.
Service Area – Cities Near Del Aire
Beyond Del Aire, we serve homeowners across the wider South Bay and Los Angeles metro. If your project is in a neighboring city, our team covers Los Angeles, CA, Long Beach, CA, Anaheim, CA, and Riverside, CA. Scheduling and dispatch are coordinated from the Los Angeles office, with crews serving Del Aire locally.
Serving Del Aire, CA - Our Local Coverage Area
We’re based in the Del Aire 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 Del Aire

Yes. Del Aire is unincorporated Los Angeles County, so ADU and addition permits go through Los Angeles County, not a local city hall. The county follows state ADU laws, which generally require a permit for any unit with a kitchen or full bathroom. We handle the plan set and permit submittal for you. Call (903) 568-7222 to find out what your specific Del Aire property allows.
Most Del Aire ADUs take six to twelve months from design to final inspection, depending on scope and county plan-check timing. Prefab panel systems from brands like Abodu or Dvele can shorten on-site construction, but permit review still follows county schedules. We give you a project timeline in writing before work starts.
Some Del Aire homes sit in small HOAs with their own design rules, though California law limits how much an HOA can restrict ADUs. We review any HOA requirements during the feasibility stage so nothing surprises you later. Call (903) 568-7222 for a free estimate and we will check your property’s specifics.
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 Del Aire Customers Say
"Booked a consult online and met the project manager two days later. Weekly progress updates arrived by text with photos. ADU finished on schedule."
- Hannah W."Clean, quiet crew. They respected the neighbors, kept noise to working hours, and swept the driveway every evening."
- Hope C."Communication was the best part. I always knew what was happening that week without having to ask."
- Dolly N.



