A new modern detached ADU in a backyard
ADU Builders · El Segundo, CA

ADU Builders in El Segundo - 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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A compact kitchen inside a new ADU
A new modern ADU with wood cladding
The bedroom inside a new ADU
The bathroom inside a new ADU
A small deck outside a new ADU
A second-story addition that matches the existing roofline
A new bathroom inside a converted garage
A former garage converted into a guest house
Every project starts with

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

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Fast, Reliable ADU Builders Across El Segundo

Building an accessory dwelling unit in El Segundo means working within a 5.5-square-mile city that enforces a hard 35-foot height limit and runs one of the most thorough plan-check departments in the South Bay. That’s not a hurdle. It’s the reason you want a builder who has already pulled permits here and knows what clears on the first pass. Fielding ADU Builders handles detached backyard units, garage conversions, and room additions across El Segundo, from Smoky Hollow to the tree streets east of Sepulveda. Call (361) 315-4177 for a free, written estimate before any work begins.

Call (361) 315-4177

Why Fielding ADU Builders Is El Segundo’s Preferred ADU Builders Company

The living room inside a new ADU

We are an ADU Builders company that operates on The Garrison Standard: a written price before any work starts, permitted construction done by the book, and a one-year written guarantee on every project. Reed Calloway leads the team, and the same standard has anchored our parent organization, Garrison Partners, since 2006. For El Segundo homeowners, that means the number you approve on day one is the number on the final invoice. No change orders slipped in at rough framing. No permit board left blank.

Our crews arrive in uniform, background-checked before they step onto your property. We know what the El Segundo Building Safety Division asks for on ADU submittals, and we price utility work – panel upgrades, sewer laterals, gas line extensions – into the scope before you sign. Homeowners on ADU Builders in El Segundo projects get direct answers about height limits, setback variances, and plan-check timelines, because we have already worked through all three here.

Backyard ADU in El Segundo

A backyard ADU in El Segundo is a detached one-story unit – typically 400 to 800 square feet – built in the rear yard of a single-family lot. Most El Segundo lots run 4,500 to 6,000 square feet, which leaves enough room for a studio or one-bedroom unit without sacrificing the whole yard. A standard one-story backyard ADU here runs $275,000 to $410,000 before permit and utility fees. Two-story units are technically allowed under the 35-foot height limit but routinely trigger neighbor-notice and privacy review, which adds months to the permit calendar.

One-Story Design and the Height Limit

Because El Segundo caps structures at 35 feet and lots sit close together, a two-story ADU can block a neighbor’s sightline and stall at plan check. Most homeowners choose a single-story layout to keep the project in the standard over-the-counter path.

Utility Hookup and Lot Access

Older El Segundo homes – many built between 1940 and 1970 – often need a service panel upgrade or sewer lateral replacement before an ADU can be connected. We scope those costs in writing at the estimate, so they do not appear as a surprise change order later.

ADU Construction in El Segundo

A new two-story ADU over a garage

ADU construction in El Segundo follows a specific sequence: as-built measurement, architectural and structural drawings, plan-check submittal, utility coordination, foundation and framing, mechanical and finish work, then final inspection. Our team handles every phase in-house, and the project lead you meet at the first walkthrough stays on the job through the final sign-off. A detached 600-square-foot unit typically takes 6 to 9 months from first walkthrough to final inspection in El Segundo, with plan-check review consuming 4 to 10 weeks of that timeline depending on the city’s current volume.

Permit Path and Inspections

El Segundo’s plan-check process reviews ADU submittals for setback compliance, height, parking replacement, and utility sizing. We pull all permits, schedule every inspection, and keep the permit board current. Reed Calloway signs off on the scope before submittal so the drawings match what is actually built.

Fixed Price, Written Scope

We hand you a line-item price in writing before any work starts. The Garrison Code governs how we operate on every El Segundo job: show up in the window, price in writing, build by the book, leave it clean, stand behind it for a full year. If something fails inside 365 days, we come back and correct it at no charge.

Trusted Brands We Service in El Segundo

El Segundo homeowners researching ADU options usually come across the same names we already work with. We install and finish prefab and modular ADUs from Abodu, Cover, and Dvele, and we also build conventional stick-framed units with James Hardie siding. If you want a factory-built unit shipped to your lot, we handle the site prep, foundation, utility connections, and finish work. If you want a custom build, we frame it to match your house. The right method depends on your budget, lot shape, and how fast you need occupancy. We carry no brand loyalty – we carry what fits the job.

Common ADU Builders Problems We See in El Segundo Homes

  • Two-story ADU quoted without checking the 35-foot height limit. A second story can push the roofline over the limit or trigger neighbor-notice review. We red-flag this in the estimate, before you spend money on drawings that will stall.
  • Plan-check delays that blow up the calendar. El Segundo’s plan-check is thorough. A submittal with missing details gets bounced and re-queued. We submit complete sets the first time and track the review weekly.
  • Utility upgrades left out of the price. Panel, sewer lateral, and gas line work is common on El Segundo’s older housing stock. Unscoped contractors add it as a change order. We put it in the written price.
  • Setback variance surprises on small lots. A detached ADU closer to the property line than the standard rule allows needs a variance – the city’s written permission to build closer. We check this before quoting so the price reflects the real plan.

Pricing for ADU Builders in El Segundo, CA

A detached one-story ADU in El Segundo runs $275,000 to $410,000 before permit and utility fees. A garage conversion lands between $120,000 and $200,000 depending on foundation condition and whether the existing slab needs structural work. A prefab ADU from Abodu or Cover typically runs $250,000 to $350,000 installed, including site work. What moves the number: lot access, utility upgrades, the plan-check path, and whether the design stays under the 35-foot height limit without a variance. Every Fielding quote is written and itemized. Call (361) 315-4177 to schedule a free estimate and get your number in writing.

We Also Serve Cities Near El Segundo

Fielding ADU Builders works across the South Bay and surrounding communities. We serve El Segundo plus Manhattan Beach, Hawthorne, Inglewood, and Hermosa Beach. If you live one block over the city line, the same crew, the same written price, and the same one-year guarantee apply.

Serving El Segundo, CA - Our Local Coverage Area

We’re based in the El Segundo 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 El Segundo

Why El Segundo Chooses Fielding ADU Builders

We set the standard for adu builders in El Segundo.

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 El Segundo

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 El Segundo - 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 El Segundo Customers Say

Trusted by homeowners across El Segundo and surrounding areas.

★★★★★

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

Hal P. · Verified customer
★★★★★

"Solid job. Cabinet delivery was a week behind but they worked around it."

Ben G. · Verified customer
★★★★★

"Insulation, drywall, and finishes were all well done. Feels like part of the house."

Pete O. · Verified customer

More ADU services in El Segundo

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

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(361) 315-4177

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