Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Kendale Lakes
Adding square footage to a Kendale Lakes home hits different than in most of South Florida. The housing stock here, built mostly in the 1970s and early 1980s as concrete block tract homes, sits inside Miami-Dade’s High Velocity Hurricane Zone. That means a room addition or ADU in the 33183 ZIP code typically costs between $45,000 and $130,000 once engineering, HVHZ compliance, and permit fees are accounted for. If you’re weighing whether to build up or build out, call Tom and his sons at (877) 610-1318 for a straight answer and a free estimate, no pressure attached.
We’ve spent nearly three decades working in neighborhoods like Bent Tree, Snapper Creek, and along Kendale Lakes Boulevard. We know what the DERM review means for lake-adjacent lots, and we know which 1970s floor plans can actually support a second story without rebuilding the first. That knowledge saves you money before the first permit gets pulled.
Why Barrett & Sons Construction Is Kendale Lakes’s Preferred Home Additions & ADU Company
Barrett & Sons is owned by Tom Barrett, a local contractor who publishes his name, his license number, and his address. Look any of it up before you sign. The crew that shows up at your Kendale Lakes home will be Tom’s sons and their teams, not a rotating cast of subcontractors dispatched from somewhere else. If something isn’t right after the job is done, one call brings Tom back. That’s the 90-Day Done Right Promise, written on every contract.
Kendale Lakes homeowners tend to ask harder questions than most, and we respect that. Many of you have already been burned by a national estimator who quoted one number over the phone and handed you another at the door. We run every scope, every allowance, every price change as a written change order before work proceeds. The permit inspector works for you, not for us, and we like it that way. On an addition or ADU in Kendale Lakes, permits are not optional: HVHZ compliance triggers structural and impact-rated opening requirements that no legitimate contractor skips.
Our response time to Kendale Lakes is fast because scheduling runs from our South Florida office and our crews serve this area directly. A live person answers the phone 24 hours a day, seven days a week, at (877) 610-1318. No voicemail tree, no out-of-state call center.
Our Home Additions & ADU Services in Kendale Lakes
We’re the Home Additions & ADU team that handles the whole job, from first tape measure on the slab to final inspection sign-off. These are the services Kendale Lakes homeowners ask for most.
ADU Design & Permitting
An accessory dwelling unit in Kendale Lakes has to clear Miami-Dade’s building department, and if your lot touches one of the neighborhood’s man-made lakes or changes its drainage pattern, you’ll also clear DERM wetland buffer review. We draw plans that account for both from day one. Most ADUs we design in this area are permitted under the county’s current accessory structure rules, and we hand you a permit set you can verify.

Garage Conversion ADU
Converting a garage into living space in Kendale Lakes usually costs between $30,000 and $80,000. The 1970s CBS garages here often have slab floors without vapor barriers and ceiling assemblies never meant for insulation. We address the moisture problem before we frame a single wall, because an unpermitted garage conversion in this climate grows mold fast. Then we handle the impact-rated openings, the electrical, the plumbing, and the final inspection.

New Detached ADU
A freestanding ADU in a Kendale Lakes backyard runs $90,000 to $220,000 depending on square footage and site conditions. The high water table here, thanks to the community’s position at the western edge of the Everglades drainage basin, means excavation for footers often hits standing water within a few feet. We plan for dewatering from the start, so the site work doesn’t surprise you with a change order down the road.

Junior ADU & Interior Conversion
A junior ADU, or an interior conversion of an existing bedroom or den into a separate living space, is typically the most affordable path to rental income in Kendale Lakes. These projects often stay under the $45,000 floor of a full addition, but they still require the same HVHZ compliance on any new openings and the same DERM review if site drainage changes. We’ll tell you honestly whether your existing floor plan works or whether you’d be better off building new.

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 Kendale Lakes
When your addition or ADU needs hardscape, walkways, or a patio to connect the new structure to the rest of the property, we install materials you can look up. For Kendale Lakes jobs, Tom’s crews work regularly with Techo-Bloc and Cambridge Pavers for paver patios and walkways, and Quikrete products for setting posts and small concrete work. We carry the materials our local customers actually need, so you’re not waiting on a specialty order from out of state. The brands are on the contract just like the price, and so is the 90-Day Done Right Promise.
Common Home Additions & ADU Problems We See in Kendale Lakes Homes
- HVHZ compliance triggers on existing openings. Adding onto a 1970s CBS home almost always means bringing the original windows and doors up to impact-rated standard. Kendale Lakes homeowners don’t realize this until the permit reviewer flags it. We plan for it in the initial estimate, so you’re not surprised mid-job.
- High water table where you want to dig. The porous oolitic limestone under Kendale Lakes means excavation for footers, plumbing trenches, or utility lines reaches standing water within a few feet. Dewatering isn’t optional here, and out-of-area contractors often price jobs without it. We line-item it up front.
- Lake proximity and DERM review. If your lot borders one of the community’s signature man-made lakes, altering grading or adding impervious surface can trigger county DERM review. The lakes are stormwater infrastructure, not just scenery. We know which lake-adjacent lots need that extra review and which don’t.
- 1970s slab conditions under the new space. Many Kendale Lakes garages and utility rooms sit on slabs with no vapor barrier. Framing over that without addressing moisture locks in a mold problem. We test and prep the slab before any framing begins.
Pricing for Home Additions & ADU in Kendale Lakes, FL
A home addition in Kendale Lakes typically runs $45,000 to $130,000. A full detached ADU lands between $90,000 and $220,000. A garage conversion ADU falls in the $30,000 to $80,000 range. The spread comes down to square footage, whether the job is single-story or two-story, and how much existing structure needs bringing up to current HVHZ code. Every estimate is written, every allowance is spelled out, and every change order is on paper before work starts. If you want to compare our number against a national quote, we encourage it. Call (877) 610-1318 and we’ll come out to Kendale Lakes, walk the property, and give you a line-item price you can actually hold us to.
We Also Serve Cities Near Kendale Lakes
Our crews work throughout the surrounding neighborhoods, so if you’re in Kendall West, The Crossings, Three Lakes, or Country Walk, the same Kendale Lakes team can handle your addition or ADU. We also serve the broader Home Additions & ADU area throughout this part of Miami-Dade, and if your project overlaps with a kitchen or bath, our Kitchen Remodeling in Kendale Lakes and Bathroom Remodeling in Kendale Lakes crews step in seamlessly.
Serving Kendale Lakes, FL - Our Local Coverage Area
We’re based in the Kendale Lakes 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 Kendale Lakes
A home addition in Kendale Lakes typically costs $45,000 to $130,000, while a detached ADU runs $90,000 to $220,000 and a garage conversion ADU runs $30,000 to $80,000. The range depends on square footage, story height, and how much of the existing structure must be brought up to Miami-Dade HVHZ code. Call (877) 610-1318 for a written, line-item estimate at no charge.
No, not without your signature. Every scope, allowance, and price change at Barrett & Sons is issued as a written change order before any work proceeds. If site conditions uncover something unexpected, like a non-compliant roof-to-wall connection or a high water table complication, we bring you the number on paper first. Nothing moves without your approval. Call (877) 610-1318 to talk through your project.
Yes, on every eligible job. Kendale Lakes sits inside Miami-Dade’s High Velocity Hurricane Zone, and any permitted addition or ADU triggers structural, impact-rated opening, and drainage compliance requirements. The inspector works for you, not for us. We pull the permits, schedule the inspections, and get sign-off before we call the job done.
A garage conversion typically takes 10 to 16 weeks from permitting to final inspection. A ground-up detached ADU or second-story addition usually runs 6 to 10 months, largely due to HVHZ plan review and any DERM wetland buffer review on lake-adjacent lots. We’ll give you a milestone schedule in writing before we start, and we update it if anything shifts. Call (877) 610-1318 and Tom will walk you through what to expect for your specific property.
Yes, every job carries our written 90-Day Done Right Promise. If something isn’t done right, one call brings Tom back to make it right. That’s on the contract, not buried in the fine print. Honest work, written down, backed by a name you can find at the hardware store on Saturday.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Kendale Lakes and surrounding Miami-Dade neighborhoods.







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