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 Boca Del Mar
If you live in Boca Del Mar, adding square footage to your home usually runs $45,000 to $130,000 for a room addition, and $90,000 to $220,000 for a new detached ADU. Those numbers move based on what Palm Beach County makes you bring up to code, and we’ll get into that below. Barrett & Sons Construction has worked on enough 1970s and 1980s CBS block homes in this community to know exactly where the surprise costs hide before you sign anything. Call (877) 610-1318 and Tom or one of his sons will walk your property with you, scope in hand, and give you a written line-item estimate with no trip charge inside the county.
Why Barrett & Sons Construction Is Boca Del Mar’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998 and his sons run the crews today. That’s not marketing copy; when you hire us for a Home Additions & ADU project in Boca Del Mar, the name on the truck is the name on the permit and the name that shows up on site. We publish our license number, our address, and Tom’s name. Look any of it up before you sign.
Boca Del Mar is unincorporated Palm Beach County, which means your permits route through the county building department, not Boca Raton’s. Contractors who assume city inspectors will review the plans get a failed inspection on the first visit. We’ve pulled enough county permits here to know the scheduling portal, the fee schedule, and the inspection checklist cold. That familiarity is why our Boca Del Mar jobs stay on schedule instead of sitting in permit limbo.
Every project we complete here comes with our 90-Day Done Right Promise, written on the contract. If something isn’t right, one call brings Tom back. And every price change on your Boca Del Mar project arrives as a written change order before a single nail moves. No surprises at final payment.
Our Home Additions & ADU Services in Boca Del Mar
ADU Design & Permitting
An ADU in Boca Del Mar starts with Palm Beach County’s rules for setbacks, height limits, and impact-rated openings, not with a sketch. We handle the full design and permitting path: architectural drawings, structural engineering for hurricane tie-downs, county submittal, and inspection coordination. Most homeowners in this area are surprised to learn their 1980s roof-to-wall connections must be retrofitted to current HVHZ standards even when the new structure is small. We plan for that on day one so it doesn’t ambush you mid-project.
Garage Conversion ADU
Boca Del Mar has hundreds of attached two-car garages built in the CBS era, and a garage conversion typically runs $30,000 to $80,000 here. The block walls are usually in good shape, but the slab and the hurricane strapping are where the scope grows. We run a full structural review before quoting so your conversion meets current wind-load requirements, not just the standards from when the house went up.
New Detached ADU
A new detached ADU in Boca Del Mar runs $90,000 to $220,000 depending on square footage, finishes, and how much site work your lot needs. Shallow groundwater, often just 2 to 4 feet below grade in this part of South Palm Beach County, makes excavation for footings and utility runs trickier than it looks on paper. We plan for dewatering and proper drainage from the first site visit. If a contractor gives you a detached-ADU quote without mentioning groundwater, they haven’t built here.
Junior ADU & Interior Conversion
Interior conversions, like turning an oversized laundry room or a den into a junior ADU, often make the most sense in Boca Del Mar’s villa and single-family layouts. These projects run on the lower end of the addition range and sometimes avoid full foundation work entirely. County code still applies to kitchens and bathrooms we add, so expect permits, inspections, and impact-rated windows on any opening we touch. If your home still has single-pane aluminum windows from the 1980s, the county will likely require replacement as part of the scope.
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.
Trusted Brands We Service in Boca Del Mar
We build with materials you can research before you commit. On Boca Del Mar hardscape and paver work tied to additions and ADU site prep, we regularly use Techo-Bloc and Belgard pavers because they hold up well in our humidity and wet-season drainage patterns. For exterior work, we rely on Quikrete products for concrete and stucco repair. We don’t stock mystery brands off a van, and we’ll show you the spec sheets before anything gets installed.
Common Home Additions & ADU Problems We See in Boca Del Mar Homes
- Pre-Andrew roof-to-wall connectors. Most homes in Boca Del Mar went up before Hurricane Andrew changed the code in the 1990s. Adding a room means the county inspects the existing tie-beam connections, and if they’re not up to current standards, you’ll be retrofitting the existing structure before we can close up walls.
- Impact-rated window and door mandates. Boca Del Mar sits in a high-velocity hurricane zone. Any addition or ADU that touches an exterior opening triggers requirements for impact-resistant windows and doors. That’s a real cost line, and it shows up on every legitimate quote.
- Shallow groundwater during excavation. The water table in Boca Del Mar sits close to the surface. Footing digs and utility trenches can take on water fast. We plan dewatering and drainage into the scope instead of discovering it after the hole is dug.
- County versus city permit confusion. Boca Del Mar is not Boca Raton. Permits go through Palm Beach County, with a different portal, different inspectors, and different fees. A contractor who doesn’t know this will cost you weeks in rescheduling alone.
Pricing for Home Additions & ADU in Boca Del Mar, FL
Here’s what we see across Boca Del Mar right now. A room addition runs $45,000 to $130,000. A garage conversion runs $30,000 to $80,000. A new detached ADU runs $90,000 to $220,000. The wide spans reflect what county-mandated upgrades do to scope: two houses on the same street can quote $40,000 apart because one has newer impact windows and the other still has single-pane aluminum from 1982. We write every allowance on paper, every scope change as a signed change order, and every estimate as a free, no-obligation line item. Call (877) 610-1318 to schedule yours.
We also handle Kitchen Remodeling in Boca Del Mar and Bathroom Remodeling in Boca Del Mar, so if your addition includes either, one crew and one permit package covers the whole job.
We Also Serve Cities Near Boca Del Mar
Beyond Boca Del Mar, our crews work regularly in Boca Raton, Sandalfoot Cove, Deerfield Beach, and Lighthouse Point. Each of those areas has its own permitting quirks and housing stock, and we’ve built in all of them. If you’re on the edge of 33433 or just across the line in a neighboring community, call (877) 610-1318 and we’ll tell you straight whether the project makes sense.
Serving Boca Del Mar, FL - Our Local Coverage Area
We’re based in the Boca Del Mar 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 Boca Del Mar
Once your permit is approved by Palm Beach County, we typically mobilize within two to three weeks. The permitting itself usually takes four to eight weeks depending on the county’s current queue and whether your existing structure needs hurricane-retrofit review. Call (877) 610-1318 and we’ll give you a realistic timeline for your specific scope after walking the property.
Yes. We work throughout the 33433 zip code, including the villa communities, the single-family sections built in the 1970s and 1980s, and the low-rise condo buildings where interior conversions come up. If you’re in Boca Del Mar proper, you’re in our service area.
Usually yes, and that’s the part national companies quote low and bill high. Palm Beach County requires roof-to-wall connector retrofits and impact-rated openings on permitted additions that cross certain cost thresholds in Boca Del Mar. We include those costs in our initial written estimate so the first number and the final number match. Call (877) 610-1318 for an exact quote, free.
Labor and material costs are similar across South Palm Beach County, but Boca Del Mar’s unincorporated status means county permit fees and the mandatory hurricane-compliance upgrades drive the final number higher than some neighboring cities with older code baselines. A room addition here typically runs $45,000 to $130,000. Every quote we give is line-itemed so you can see exactly what the county is requiring versus what the actual build costs.
It covers workmanship. If something we built isn’t right within 90 days of completion, Tom comes back and makes it right, one call. It’s written on every contract we issue in Boca Del Mar, not buried in fine print. Call (877) 610-1318 and we’ll put it in front of you before you sign anything.
Get a Straight Answer on Your Boca Del Mar Addition
You’ve probably already had a contractor quote you one number and then hand you another. That doesn’t happen with us. Every scope, every allowance, and every price change on your Boca Del Mar addition or ADU arrives in writing before work begins. The permit inspector works for you, not for us, and we like it that way. Tom Barrett answers his own phone, publishes his license number, and lives twenty minutes from this community. Call (877) 610-1318 today for a free, written, no-surprises estimate.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Boca Del Mar and South Palm Beach County since 1998.