Home Additions & ADU in Palm Beach Gardens, FL | Barrett & Sons Construction - Barrett & Sons Construction

Home Additions & ADU in Palm Beach Gardens - One Fixed Price, Permits Handled

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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Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

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Fast, Reliable Home Additions & ADU Across Palm Beach Gardens

A home addition in Palm Beach Gardens typically runs $45,000-$130,000, while a detached ADU usually lands between $90,000 and $220,000 depending on site conditions and finishes. Those numbers reflect real project scopes we price every month across the 33410 and 33418 corridors. If your current home doesn’t fit the way you live anymore, adding square footage often beats searching for something larger in this market. Call (877) 610-1318 and we’ll walk the property with you, then put everything in writing before a single permit gets pulled.

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Why Barrett & Sons Construction Is Palm Beach Gardens’s Preferred Home Additions & ADU Company

Tom Barrett founded this company in 1998, and his sons run the crews that work inside PGA National, Mirasol, BallenIsles, and the newer sections out near Avenir. That matters in Palm Beach Gardens because every gated community here has its own architectural review board, and each one wants to see a contractor who knows the drill before the city even looks at your plans. We register vehicles, workers, and equipment with community security daily, and we’ve sat through enough ARB meetings to know how to present a scope that gets approved the first time.

Homeowners across Palm Beach Gardens call us for Home Additions & ADU work because we publish Tom’s name, address, and license number, and because a live person answers the phone 24 hours a day. Our background-checked crew members carry the Barrett & Sons name on their uniforms. Every price change arrives as a written change order before work proceeds, and every job is backed by our 90-Day Done Right Promise. One call brings Tom back if something isn’t right.

Our Home Additions & ADU Services in Palm Beach Gardens

ADU Design & Permitting

Palm Beach Gardens requires two approvals on most ADU projects: the community ARB signs off first, then the city issues the permit. We handle both tracks. Our design work anticipates the Florida Building Code wind-load and impact-resistance requirements that Palm Beach County has enforced since the 2004-2005 hurricane seasons, so plans don’t kick back for revisions after you’ve already spent weeks waiting on an ARB hearing.

ADU Design & Permitting

Garage Conversion ADU

Many older concrete block homes in eastern 33410 have oversized garages that convert cleanly into a one-bedroom unit. A garage conversion ADU in Palm Beach Gardens typically runs $30,000-$80,000 depending on whether you’re adding a kitchenette, a bath, or just finishing the shell. We pull permits, bring plumbing and electrical up to code, and install impact windows so the finished unit meets the same standard as the main house.

Garage Conversion ADU

New Detached ADU

A ground-up detached ADU out near Avenir or on a larger lot in western 33418 often needs careful drainage planning because of the high water table in the flat western sections. We coordinate site prep and utilities before the slab goes in, and we price the project with allowances in writing so you know exactly what your finishes cost. Detached ADUs in Palm Beach Gardens run $90,000-$220,000 for most builds.

New Detached ADU

Junior ADU & Interior Conversion

If you have a bonus room, enclosed patio, or underused den, a junior ADU is the most budget-friendly path to a rentable or guest-ready space. These interior conversions in Palm Beach Gardens often fall between $45,000 and $130,000 depending on plumbing runs and whether you need a separate entrance. We handle everything from framing the kitchenette to the final inspection sign-off.

Junior ADU & Interior Conversion
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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Trusted Brands We Service in Palm Beach Gardens

We install materials you can look up, not mystery brands off a van. On Palm Beach Gardens additions and ADUs, you’ll see names like Schluter in wet areas, Grohe fixtures in baths, and GAF roofing systems on new structures. Local suppliers stock these lines throughout Palm Beach County, which means fewer days waiting on material and fewer surprises on your timeline. We’ll name every brand in your written scope before work starts.

Common Home Additions & ADU Problems We See in Palm Beach Gardens Homes

  • HOA architectural review stalls. Communities like PGA National and Frenchman’s Creek move at their own pace, and an out-of-county contractor who files plans late can lose you three weeks before the city even sees the paperwork. We file ARB packages first, then pursue the city permit.
  • Impact glass complications on older 1960s-70s homes. Eastern 33410 has plenty of MacArthur-era concrete block homes where a room addition means matching hurricane-impact glazing to existing openings. Mixing old non-impact windows with new impact ones can compromise your wind mitigation credit.
  • High water table in western 33418. Flat land near Avenir holds water after heavy rain, and slab work needs proper drainage planning before a footing goes in. Skipping that step leads to shifting slabs and cracked tile inside a two-year-old ADU.
  • Under-scoped electrical panels. Adding a full ADU often requires a service upgrade, and older Palm Beach Gardens homes with 100-amp panels can’t carry a second kitchen and AC unit. We check panel capacity during the estimate, not after demo starts.

Pricing for Home Additions & ADU in Palm Beach Gardens, FL

A room addition in Palm Beach Gardens runs $45,000-$130,000 for most scopes, while a full detached ADU lands between $90,000 and $220,000. Garage conversions sit in the $30,000-$80,000 range. What moves the number? Site access on a tight gated lot, the age of your existing electrical panel, ARB-mandated exterior finishes, and whether you’re building on a slab or pier foundation. Every scope we write includes allowances in writing and written change orders before anything changes. Call (877) 610-1318 for a free estimate and a line-item price you can actually compare.

We Also Serve Cities Near Palm Beach Gardens

Our crews work throughout northern Palm Beach County. If you’re in Lake Park, North Palm Beach, Riviera Beach, or The Acreage, you’re inside our regular service area for Home Additions & ADU in Palm Beach Gardens and surrounding communities. Same written-scope process, same 90-Day Done Right Promise. Call (877) 610-1318 and we’ll schedule a walkthrough wherever your property sits.

Serving Palm Beach Gardens, FL - Our Local Coverage Area

We’re based in the Palm Beach Gardens 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 - Home Additions & ADU in Palm Beach Gardens

Why Los Angeles Chooses Barrett & Sons Construction

We set the standard for construction in Los Angeles.

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.

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

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

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

How It Works in Los Angeles

Getting your construction handled is simple and fast.

1

Call or Request a Free Estimate

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2

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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 construction 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 Los Angeles Customers Say

Trusted by homeowners across Los Angeles and surrounding areas.

★★★★★

"Tom Barrett was on our job most days himself, not just at the quote and then never again. When something needed deciding there was an actual person to decide it with."

Rosalie Pemberton · Verified customer
★★★★★

"Came back a year later to sort a door that had dropped as the frame settled. No charge and no argument about whether it was covered."

Thaddeus Oyelowo · Verified customer
★★★★★

"Addition over the garage matched the original roofline and brickwork so closely that visitors do not realise it was added. He tracked down the closest brick he could find rather than settling."

Gideon Stroud · Verified customer

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