Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Home Additions & ADU Across Boynton Beach
A home addition or ADU in Boynton Beach typically runs $45,000-$130,000 for a room addition, $30,000-$80,000 for a garage conversion, and $90,000-$220,000 for a new detached ADU. Those numbers reflect what the local market actually charges once High-Velocity Hurricane Zone wind-load compliance, condo board approvals, and Palm Beach County permits are in the quote. If you’re reading this from Century Village, Leisureville, Valencia, or the neighborhoods off Woolbright Road, you’re in the right place. We’re Barrett & Sons Construction, owner-operated since 1998. Call (877) 610-1318 to schedule a free estimate.
Why Barrett & Sons Construction Is Boynton Beach’s Preferred Home Additions & ADU Company
Boynton Beach is not a generic South Florida market. The eastern ZIP codes are packed with 55+ concrete-block condo campuses where every ADU or addition has to survive a condo association review before the city even looks at it. The western ZIP codes are newer GL Homes communities where HOA architectural boards move slower than the contractor you hired. We’ve worked both sides of that divide long enough to know which documents each board wants, in what order, and how to keep the schedule moving when a milestone hold threatens to stall everything.
Tom Barrett runs the crews with his sons. We pull permits on every eligible job, we put every price change in writing before work begins, and we back every completed job with the 90-Day Done Right Promise. One call brings Tom back if anything’s not right. That promise is written on the contract, not buried in fine print.
Our Home Additions & ADU Services in Boynton Beach
ADU Design & Permitting
Before a single block gets laid, the design has to clear two separate gates in Boynton Beach: the association and the city. Century Village and Leisureville boards have their own structural review requirements, and Palm Beach County’s building department enforces wind-uplift standards that a 1970s design won’t pass. We handle the full set of drawings, the permit package, and the coordination with your association’s engineer. You get a scope in writing before the permit application is submitted.
Garage Conversion ADU
Garage conversions are the most common ADU request we see in Boynton Beach’s older condo communities. The 1970s block walls and tie-beams often hide corroded rebar and spalling concrete at the exact point where a new roof needs to tie in. We restore that concrete with epoxy-coated rebar, get the wind-load verification signed, and only then close the walls. A contractor who skips that step is building an insurance claim, not an ADU.
New Detached ADU
A new detached ADU in the western ZIP codes, including 33472, 33473, and 33474, sits on ground with a high water table fed by the South Florida Water Management District canals. Footer excavation can flood mid-pour if the site hasn’t been assessed for dewatering. We plan for that before the first shovel hits dirt, and the dewatering cost goes in the original written estimate, not a surprise change order.
Junior ADU & Interior Conversion
A junior ADU inside an existing single-family home or condo unit usually moves faster than a detached build because less structural work is required. But the same wind-load standards apply to any new glazing, and the association still wants drawings. We produce those drawings with the right impact ratings noted on every opening.
Across all of it, our Home Additions & ADU team coordinates the full sequence: design, association submission, permit, construction, inspection, sign-off. You won’t chase documents between three different offices.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
How Boynton Beach’s Storm and Wind-Load Code Shapes Every Project
Every permitted project in Boynton Beach has to satisfy Palm Beach County’s High-Velocity Hurricane Zone requirements. That’s not a suggestion. Non-impact glazing and single-ply roofing assemblies that pass muster inland don’t pass here. On a new detached ADU in 33472, the roof-to-wall connections have to carry current uplift ratings, and the windows have to carry impact ratings the inspector will actually check against the product approval. On a second-story addition, the original 1960s block walls below the new floor often need concrete restoration before they’ll support the new load.
Here’s what a compliant ADU quote includes that a cheap one leaves out: impact-rated windows with verifiable product approvals, upgraded roof-to-wall strapping, concrete restoration at tie-beams where original rebar has corroded, and a permit set that lists every one of those items. The cheap quote omits two or three of them and banks on the inspector not noticing. In Boynton Beach, the inspector notices. The permit inspector works for you, not for me. That’s why I like him.
Documented compliance also matters when you renew your homeowners insurance or file a claim. Wind-mitigation credits depend on having the upgrades on paper, tied to a specific address and inspection record. We had a garage conversion in Leisureville where our crew found corroded rebar and spalling concrete at the tie-beam. We coordinated with the association’s structural engineer, restored the concrete with epoxy-coated rebar, and got the city sign-off before closing the walls. The client’s insurance carrier later confirmed those documented upgrades kept their wind-mitigation credits intact. That’s the difference between an ADU that adds value and an ADU that creates liability.
Trusted Brands We Use in Boynton Beach
We build with materials you can look up, not mystery brands off a van. For hardscape, paver, and site prep on ADU projects in Boynton Beach, we routinely install Techo-Bloc and Belgard products, and we’re familiar with Cambridge Pavers. For structural concrete work tied to additions and ADU slabs, we use Quikrete mixes specified for South Florida’s water table conditions. It’s a short supply chain, which means faster access to the right material when your association has a deadline.
Common Home Additions & ADU Problems We See in Boynton Beach Homes
- Condo board rejection of the draw schedule. Century Village and Leisureville associations impose milestone holds on payments, and a contractor whose draw schedule doesn’t align with those holds will stall the ADU for months. We write scopes that match the association’s milestone structure from day one, in writing.
- Footer excavation flooding mid-pour. Western ZIP codes like 33473 and 33474 sit on a high water table. A second-story addition or detached ADU footer can flood during excavation if dewatering wasn’t scoped. We include that assessment in the original estimate.
- Garage conversions failing wind-load verification. 1970s roof-to-wall connections were never built for current High-Velocity Hurricane Zone uplift standards. If the original connections aren’t upgraded and documented, the conversion passes framing but fails wind verification. We upgrade and document every one.
- Original panels and flat roofs driving surprise change orders. Eastern Boynton Beach stock from the 1950s-1980s often has original electrical panels and aging flat roofs. An addition that touches those systems triggers upgrades the national-brand quote never mentioned. We review that before we quote, so you know the real number up front.
Pricing for Home Additions & ADU in Boynton Beach, FL
Here are the line-item ranges we see across Boynton Beach, including the condo communities east of I-95 and the master-planned communities west of the Turnpike:
| Project | Typical Boynton Beach Range |
|---|---|
| ADU Construction | $90,000-$220,000 |
| Garage Conversion | $30,000-$80,000 |
| Home Addition | $45,000-$130,000 |
| Room Additions | $45,000-$130,000 |
| Second Story Additions | $45,000-$130,000 |
What moves the number: association-imposed milestone holds, concrete restoration scope, wind-load upgrades on the original structure, and dewatering if your lot sits in the western water-table zone. Every one of those belongs in the original written estimate. No change order appears at the end without a written change order in your hand first. Call (877) 610-1318 for a free estimate with those line items spelled out.
We Also Serve Cities Near Boynton Beach
Our crews work throughout the Boynton Beach area. For clients in Boynton Beach proper, the same team handles the job from estimate to inspection. We also serve Lantana, Delray Beach, Kings Point, and Lake Worth with the same permitting discipline, written change orders, and 90-Day Done Right Promise. Scheduling and dispatch run from our Miami office; crews live and work here locally.
Serving Boynton Beach, FL - Our Local Coverage Area
We’re based in the Boynton Beach 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 Boynton Beach
Yes. A garage conversion in Leisureville, Century Village, or any of Boynton Beach’s 55+ condo communities requires association approval before the city will process the permit in any meaningful way. The association typically reviews structural drawings, the scope of concrete restoration, and the contractor’s draw schedule against their milestone requirements. We prepare the full package in the order each community expects, and we coordinate with the association’s structural engineer when a tie-beam or spalling repair requires their sign-off. Call (877) 610-1318 for an estimate that includes the association submission process, not just the construction.
A new detached ADU in 33472 must meet Palm Beach County’s High-Velocity Hurricane Zone standards for roof-to-wall connections, impact-rated openings, and foundation anchoring. That means the roof-to-wall straps, the window and door product approvals, and the footer design all have to meet current uplift ratings and impact resistance requirements at the permit stage, not just at final inspection. We list every one of those line items in the original estimate, in writing. Get an exact number by calling (877) 610-1318.
The variation usually comes down to what’s left out. A lower Boynton Beach ADU quote often omits concrete restoration at corroded tie-beams, wind-load upgrades on the original 1970s structure, dewatering for the high water table in western ZIP codes, and the association milestone coordination. A higher quote that includes those items in writing is usually the honest number. The allowance that isn’t on paper is a surprise waiting for a date. Call (877) 610-1318 and we’ll show you a written line-item estimate so you can compare apples to apples.
No. A second-story addition on a 1960s concrete-block condo requires an engineer to verify the existing slab and block walls can carry the new load, and in most cases the original rebar has corroded enough that concrete restoration is mandatory before framing starts. The building department will not sign a permit that assumes a 60-year-old slab is fine. If a contractor says otherwise, ask for that assumption in writing. Call (877) 610-1318 for a free estimate with the structural assessment included.
A compliant garage conversion quote for a Boynton Beach home includes impact-rated window and door product approvals, upgraded roof-to-wall strapping, concrete restoration at tie-beams where rebar has corroded, association milestone alignment, and a full permit set listing each of those items. A cheap quote omits two or three of them and hopes the inspector doesn’t look. In Boynton Beach, the inspector looks. Tom Barrett publishes his name, address, and license number, and every change order arrives in writing before the work happens. Call (877) 610-1318 for the real number, not a teaser.
Get a Straight Answer and a Written Estimate
If you’re planning a home addition or ADU in Boynton Beach, start with a contractor who will put the real scope on paper: the wind-load upgrades, the dewatering if your lot needs it, the association milestone schedule, and the concrete restoration scope. Every number in writing, every change order before the work, and the 90-Day Done Right Promise behind it. Call (877) 610-1318 to schedule your free estimate. We answer the phone. Tom answers the phone.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Boynton Beach and surrounding communities since 1998.