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 permitted home addition or ADU in Boynton Beach will run you $45,000 to $130,000 for a standard addition, $90,000 to $220,000 for a new detached ADU, and $30,000 to $80,000 for a garage conversion. The bigger variable in this city isn’t lumber or drywall. It’s whether your project has to clear a condo board’s milestone-inspection engineer, an HOA architectural review calendar, or Palm Beach County’s High-Velocity Hurricane Zone wind-uplift requirements on top of the building department. Call (877) 610-1318 and we’ll walk you through the Boynton Beach sequence before you sign anything.
We’re Barrett & Sons Construction, and our Home Additions & ADU crews work the neighborhoods from Leisureville to Canyon every week. Tom Barrett answers his own phone. His sons run the crews. Every permit gets pulled, every inspection gets signed, and every price change arrives in writing before a single hammer swings.
Why Barrett & Sons Construction Is Boynton Beach’s Preferred Home Additions & ADU Company
Boynton Beach is a two-track city when it comes to additions. East of I-95 you’re dealing with concrete-block condos from the 1960s and 1970s that are now under Florida’s post-Surfside structural remediation laws. West of the Turnpike you’re in GL Homes master-planned communities where the HOA architectural review board has a 45-day styling review that can quietly kill your permit deadline if you don’t sequence things right. We’ve built additions and ADUs in both, which means we quote the job with the full Boynton Beach path on paper, not just the framing and drywall.
What our Boynton Beach customers keep telling us is that the last contractor handed them a price and then discovered the permit requirements after the deposit cleared. That doesn’t happen on our jobs. The scope goes in writing, the allowances go in writing, and if the condo board’s engineer adds a concrete spall repair nobody saw coming, you get a written change order before the work proceeds. Founded in 1998, owner-operated from day one, and backed by a 90-Day Done Right Promise written on every contract. One call brings Tom back if it’s not right.
Our Home Additions & ADU Services in Boynton Beach
ADU Design & Permitting
The permit sequence in Boynton Beach is different depending on which side of town you’re on. In Century Village or Leisureville, a legitimate ADU permit means coordinating with the condo board’s milestone-inspection engineer, and that adds at least 30 days to your schedule because FS 553/SB 4-D structural reports now overrule the older 1960s and 1970s concrete-repair scopes that used to sail through. We handle that coordination in-house, so your draw schedule never outruns the inspection sign-off.
Garage Conversion ADU
A garage conversion at $30,000 to $80,000 is usually the fastest path to a rentable unit or an in-law suite in Boynton Beach. But if you’re in Valencia or Canyon, starting this without checking the HOA’s architectural review board calendar is a real failure mode we see all the time. The board meets on its own schedule, and missing the submission window can set you back 45 days before the city even looks at your drawings.
New Detached ADU
A new detached ADU in Boynton Beach runs $90,000 to $220,000, and the foundation work is not something to bid from a satellite office. The western ZIP codes, especially 33472 through 33474, sit on a high water table fed by South Florida Water Management District canals. Footer excavations there often require dewatering. A contractor who doesn’t plan for that will hit an expensive surprise mid-job. We plan for it from the first site visit.
Junior ADU & Interior Conversion
Converting an interior space, like a split bedroom into a junior ADU, is the lowest-cost route when you already have the square footage. In Boynton Beach’s older concrete-block homes from the 1950s through the 1980s, the work often means opening walls and finding original panels and corroded rebar. You want that found at quote time, not after demolition. We price the knowns and put the unknowns in writing before we start.
What happens when you call
- 1
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.
Trusted Brands We Service in Boynton Beach
When we build or expand a patio, driveway, or ADU site in Boynton Beach, we install materials you can look up. Belgard and Techo-Bloc for paver work and hardscape that has to hold up to Florida sun and afternoon downpours. Cambridge Pavers on driveway and walkway projects where the HOA has a particular color or texture requirement. We stock local inventory for Boynton Beach jobs, which means fewer delays waiting on material runs out of the county.
Common Home Additions & ADU Problems We See in Boynton Beach Homes
- Condo milestone-inspection surprises. A 1974 Leisureville unit off Jog Road came to us after the association’s engineer flagged corroded rebar in the existing lanai slab. The original scope was a simple conversion, but the slab repair had to be signed off before the addition could be tied in. We sequenced it so the owner closed with zero open permit items.
- HOA architectural review delays. In the GL Homes communities west of the Turnpike, a 45-day styling review is standard before a second-story addition or detached ADU gets city-level approval. Submitting after the board’s monthly cutoff means waiting for the next cycle.
- Wind-load compliance gaps. Every permitted project in Boynton Beach has to meet Palm Beach County’s High-Velocity Hurricane Zone standards. Non-impact glazing and flimsy roofing assemblies don’t cut it here. A cheap quote that doesn’t include Miami-Dade rated underlayment and proper tie-downs is a quote that won’t pass inspection.
- High water table during foundation work. Across the western ZIP codes, footer excavation without a dewatering plan turns into a pump-and-re-pour situation fast. We bring the dewatering plan to the quote, not after the hole fills in.
Pricing for Home Additions & ADU in Boynton Beach, FL
Here are the benchmarks we use for Boynton Beach jobs, based on current market conditions:
| Project Type | Boynton Beach Price Range |
|---|---|
| ADU Construction | $90,000 - $220,000 |
| Garage Conversion | $30,000 - $80,000 |
| Home Addition | $45,000 - $130,000 |
Your exact number depends on things we can measure at the first visit: whether you’re in a condo that needs board approval, whether the HOA has a specific roofline or façade requirement, whether the high water table affects your footer plan, and whether the existing structure has spalling or wind-load issues that need addressing before new work gets tied in. The important part: that number goes in writing, and if it changes, you see a written change order before the work happens. Call (877) 610-1318 for a free estimate on your Boynton Beach project.
We Also Serve Cities Near Boynton Beach
Our crews also cover Lantana, Delray Beach, Kings Point, and Lake Worth. If you’re just outside Boynton Beach proper, call us and we’ll tell you straight whether we can get to your project without the kind of delay that comes from a contractor who doesn’t know the local inspection offices. The estimate is free either way.
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. Even if the lot is yours, a detached ADU in Leisureville requires condo board approval, and under FS 553/SB 4-D the board’s milestone-inspection engineer now has a say over the structural scope before the city even reviews your permit. Budget at least 30 days for that coordination before your construction start date. Call (877) 610-1318 and we’ll map the full sequence for your specific unit.
Any second-story addition in Boynton Beach must meet Palm Beach County’s High-Velocity Hurricane Zone standards, which mean Miami-Dade impact-rated glazing, proper roof tie-downs, and uplift-resistant assemblies. A quote that doesn’t spell those out will fail inspection. We include them in our scopes as a matter of course.
A permitted garage conversion ADU in Boynton Beach changes your dwelling coverage because you’ve added finished square footage and possibly a second kitchen. If the work is permitted and inspected, you’re in a far better position with your insurer than if it was done without documentation. If you skip the permit, you could be looking at a denied claim on unpermitted work. We pull permits on every eligible job, and the inspection record is yours to show your carrier.
East of I-95, especially in the 55+ condo complexes, site prep often means working around existing concrete slabs, corroded rebar, and tight access for equipment. West of the Turnpike, the high water table means dewatering during footer excavation. Both add cost a contractor from out of the area won’t see coming. A quote 30% under the realistic number is usually a change-order wall waiting to happen. Call us for an estimate that accounts for your actual site conditions.
In Canyon or Valencia, you should plan on 45 to 60 days for HOA architectural review board approval before city permitting even begins. The board has its own monthly cycle, and missing the cutoff resets your clock. We time our submissions to the board’s calendar so your permit doesn’t stall while the HOA debates rooflines.
Call Barrett & Sons for Your Boynton Beach Addition or ADU
If you’re in Boynton Beach and kicking around the idea of an addition, a garage conversion, or a detached ADU, call (877) 610-1318. Tom or one of his sons will answer. We’ll schedule a free estimate, walk the site with you, and put the scope in writing with the Boynton Beach permit and HOA sequence spelled out from day one. No twenty-minute phone menu, no out-of-state call center, and no price that changes when the work starts. Just the real number, in writing, from a company that has been doing this since 1998.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Boynton Beach and surrounding communities since 1998.