A new modern detached ADU in a backyard
ADU Builders · Del Aire, CA

ADU Builders in Del Aire - Plans, Permits & Build, One Fixed Price

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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The living room inside a new ADU
A new two-story ADU over a garage
A compact kitchen inside a new ADU
A new modern ADU with wood cladding
The bedroom inside a new ADU
A new sunroom addition with three walls of windows
A kitchenette inside a converted garage
A second-story addition that matches the existing roofline
Every project starts with

A free site visit, a check of what your lot allows and a written, line-item price.

Get your free estimate

Fast, Reliable ADU Builders Across Del Aire

Most Del Aire homeowners call us after they’ve already talked to someone who made the process feel vague. That’s why we start differently: a written price before any work begins, a named permit path through LA County Building & Safety, and a schedule you can actually hold us to. We’ve built ADUs on Del Aire lots bounded by the 405, West 118th Place, and the long residential stretches off Isis Avenue. If you’re weighing a detached unit, a garage conversion, or a JADU, call (361) 315-4177 and we’ll walk the lot with you.

Call (361) 315-4177

Why Fielding ADU Builders Is Del Aire’s Preferred ADU Builders Company

The bathroom inside a new ADU

Fielding ADU Builders operates inside the Garrison Partners family, which has been building to The Garrison Standard since 2006. The company is led by Reed Calloway, who set the operating rules: show up in the window, price in writing, build by the book, leave it clean, stand behind it for a year.

In Del Aire, that last part matters more than most people expect. The unincorporated county territory means two different property lines can have two different setback rules, and a lot that looks buildable from the street may not be once the county records come back. We’ve handled enough of those surprises on Del Aire parcels to know when to flag them early, before they become a change order.

Every crew member on a Del Aire job is background-checked and arrives in uniform. You’ll know who is on your property and why they’re there. And when you call, a live person answers, whether it’s noon or midnight. No voicemail, no callback queue.

JADU in Del Aire

A JADU, or Junior Accessory Dwelling Unit, is a conversion of existing space inside the footprint of a single-family home in Del Aire, typically a bedroom with a separate entrance and a small kitchenette, capped at 500 square feet. The appeal here is speed and cost: because the work happens within existing walls, the permit path through LA County stays shorter than a detached build.

When a JADU Makes Sense on Your Lot

On Del Aire lots where the backyard is already tight or the side yards are squeezed by the 405 buffer, a JADU is often the only compliant way to add rentable space without triggering a variance or setback fight. It also avoids the utility trenching cost that a detached ADU carries, since the plumbing and electrical already run to the house.

What a Del Aire JADU Costs

A JADU in Del Aire typically runs $80,000 to $140,000 depending on whether you’re converting an existing bedroom or building out a garage bay wall, adding a kitchenette, or redoing the electrical panel. The price goes in writing before the first wall comes down.

ADU Plans in Del Aire

A small deck outside a new ADU

ADU Plans are the architectural and structural drawings that get submitted to LA County Building & Safety before any framing begins on a Del Aire lot. A good set of plans names the exact setback distances, the roof height, the foundation type, and the utility connection points, and it is drawn to match what the county actually reviews, not what a neighboring city’s checklist would ask for.

Why the Plan Set Runs the Permit

In Del Aire, the plan set is the first place a project wins or loses time. County plan check for unincorporated territory looks at zoning, fire access, and structural calcs differently than Hawthorne or Inglewood would. We’ve seen plan sets get kicked back for missing soil reports or for showing a roof height that exceeds the county’s standard for a single-story ADU on certain Del Aire parcels.

What a Del Aire Plan Set Costs

ADU Plans for a Del Aire project typically run $4,000 to $9,000 for a standard detached unit or JADU, including title-24 energy calcs and structural engineering. That figure is included in your written project price, and Reed Calloway reviews the plan set before it ever reaches the counter.

Trusted Brands We Service in Del Aire

We install and finish prefab and modular ADU platforms from Cover, Dvele, and Boxabl on Del Aire lots where the access is tight and the crane or panel delivery has to be sequenced around the 405 traffic. For conventional builds, we frame with James Hardie siding and coordinate Tuff Shed-style shells when the design calls for a storage or laundry wing. Because we keep relationships with these manufacturers current, Del Aire customers get a realistic lead time on the shell and a local crew that knows how to set it on a county-approved foundation.

Common ADU Builders Problems We See in Del Aire Homes

  • Wrong permitting jurisdiction. Homeowners call Hawthorne or Inglewood to start, then discover the address is unincorporated LA County. That mix-up costs weeks. We confirm jurisdiction before the first drawing is drafted.
  • Setback surprises on unincorporated parcels. A lot that mirrors its neighbor across the street may carry different county zoning. We pull the county records and measure the actual buildable footprint before pricing the job.
  • Utility trenching cost. Running sewer, water, and power to a detached ADU on a Del Aire lot near the 405 corridor can add $15,000 to $35,000 to the budget. We line-item that cost in the written price so it doesn’t appear later as a change order.
  • LADWP service upgrades. Many Del Aire homes still carry a 100-amp panel, and a new ADU with a mini-split and electric appliances will trip that. We sequence the panel upgrade ahead of drywall so the schedule stays intact.

Pricing for ADU Builders in Del Aire, CA

In Del Aire, a detached ADU with one bedroom and one bath typically runs $180,000 to $320,000 before permit fees, depending on finish level and site conditions. A garage conversion lands between $120,000 and $200,000. A JADU runs $80,000 to $140,000. The written price you approve on day one is the number on the final invoice, and the 365-Day Done Right Promise covers workmanship for a full year after completion. Call (361) 315-4177 to schedule a free estimate, and we’ll hand you a line-item price before any work starts.

We Also Serve Cities Near Del Aire

Our crews work across the South Bay and Gateway Cities. We serve Del Aire homeowners directly, and we also take on ADU projects in Los Angeles, Long Beach, Anaheim, and Riverside. If your lot sits close to a neighboring city line, call and we’ll confirm the jurisdiction before you spend a dollar on drawings.

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 Builders in Del Aire

Why Del Aire Chooses Fielding ADU Builders

We set the standard for adu builders in Del Aire.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Del Aire

Getting your adu builders handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your adu builders needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Del Aire - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local adu builders pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Del Aire Customers Say

Trusted by homeowners across Del Aire and surrounding areas.

★★★★★

"Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."

Sheila B. · Verified customer
★★★★★

"Honest feedback on what the lot could fit. Told me up front what would fit on the lot and what the setbacks would allow."

Rita C. · Verified customer
★★★★★

"Clear price breakdown. Change orders were all in writing."

Hal P. · Verified customer

More ADU services in Del Aire

Every build below starts the same way: a free site visit and a written price.

Getting started with Fielding

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a backyard ADU site with the homeowner

Free site visit

A project lead walks the lot with you, checks what it allows and hands you a written, line-item price. No obligation.

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Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

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(361) 315-4177

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