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 Kendall West
If you live in Kendall West and you’re thinking about adding square footage, building an ADU, or converting a garage, you’re likely looking at a project in the $45,000 to $130,000 range for an addition, or $90,000 to $220,000 for a detached ADU. Those numbers come with real Kendall West variables: limestone bedrock, a high water table, pre-Andrew homes that need wind-load retrofits, and septic or well setbacks on the larger lots near the Everglades fringe. Tom Barrett and his sons have been pulling permits in this corridor long enough to scope those variables before the first bid goes out. Call (877) 610-1318 to set up a free estimate with someone who actually lives the western edge of Miami-Dade.
Why Barrett & Sons Construction Is Kendall West’s Preferred Home Additions & ADU Company
We are not a national outfit that quotes on the phone and surprises you at the door. Tom Barrett’s name is on the truck, his sons run the crews, and his address and license number are published for anyone to look up before signing. That matters in Kendall West, where the difference between a smooth permitted addition and a drawn-out mess often comes down to whether the contractor knows Miami-Dade’s Notice of Acceptance system cold.
Kendall West homeowners call us because they’ve been burned before. They had a contractor tell them permits were optional, or they discovered mid-project that the windows they paid for carried a Florida approval but not the Miami-Dade NOA an inspector requires. We pull permits on every eligible job, issue every price change as a written change order before work proceeds, and stand behind the job with our 90-Day Done Right Promise. If it’s not right, Tom comes back. One call.
Our Home Additions & ADU Services in Kendall West
Every project we scope in Kendall West starts with the lot, not the blueprints. That’s the difference between a quote that holds up and one that falls apart at rough-in inspection. Here’s what we handle most often across the 33193 ZIP code:
ADU Design & Permitting
On Kendall West lots, design and permitting are inseparable from site conditions. A detached ADU that looks simple on paper can hit septic setbacks, well clearances, or required swales that move the building footprint nine feet one way or the other. We run the pre-permit site survey before we finalize drawings, so your permit package matches what actually gets built. That’s how you avoid a redesign fee and a stalled schedule.
Garage Conversion ADU
Many of the homes in Kendall West were built between 1985 and 2000, and a lot of them have detached two-car garages that are prime ADU candidates. But converting a garage on a pre-1992 CBS structure triggers Miami-Dade’s wind-load retrofit requirements, even if the roof isn’t being touched. We scope the Simpson Strong-Tie connectors and tie-down upgrades into the bid up front. You won’t find out about them at inspection.
New Detached ADU
A new detached ADU on a Kendall West lot is a full build from slab to roof, and the slab is where we spend the most time upfront. The oolitic limestone bedrock here sits close to grade, and the water table doesn’t give you much room to work. We engineer the slab with proper drainage swales so summer thunderstorms don’t pond water against the CBS walls. In Kendall West, drainage isn’t an afterthought. It’s the first thing on the site plan.
Junior ADU & Interior Conversion
Not every ADU needs to be a separate building. We convert existing interior space, attached garages, or under-used bonus rooms into junior ADUs with their own entrance, kitchenette, and bath. On pre-Andrew homes, the same retrofit rules apply if the scope touches load-bearing walls or roof structure. We handle that paperwork so you don’t have to argue with the inspector on your own.
If you’re planning any of these in Kendall West, call (877) 610-1318. We’ll walk the lot with you and talk through what the county will actually require.
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 Kendall West
We don’t put mystery materials off a van into your home. On Kendall West projects we regularly install Belgard and Techo-Bloc pavers for driveways, walkways, and patio areas that tie into additions, and we keep common parts on hand so a change order doesn’t mean a two-week wait. When we spec Quikrete products for slab pours or repair work, you can look up exactly what’s going into the job. Named brands, written allowances, and a change order before anything moves.
Common Home Additions & ADU Problems We See in Kendall West Homes
- Skipped septic or well setback surveys. We see lots where the ADU bathroom rough-in gets drawn too close to the drainfield, and the whole plumbing plan has to rotate after the survey comes back. We run the survey before the drawings are final, not after the slab is poured.
- Slabs poured without engineered drainage swales. Flat limestone terrain plus Kendall West’s afternoon thunderstorms means water ponds fast. Without proper grading, that water sits against CBS walls and accelerates stucco failure and slab cracking.
- Hurricane clips with statewide approval but no Miami-Dade NOA. This failure mode is almost exclusive to out-of-county contractors. The rough-in inspection fails, the job halts, and the homeowner is left holding a stop-work order. We carry NOA-approved hardware before rough-in even starts.
- Pre-Andrew homes that need roof-to-wall tie-down upgrades mid-project. Any permitted structural addition on a pre-August 1992 CBS home triggers this retrofit under Miami-Dade code. If it’s not in the bid, it becomes a surprise change order. We put it in writing from the start.
Pricing for Home Additions & ADU in Kendall West, FL
Here’s what we’re seeing in the Kendall West market for the most common scopes. These are real ranges, not placeholder numbers to bait a phone call:
| Project Type | Typical Kendall West Range |
|---|---|
| Home Addition | $45,000-$130,000 |
| ADU Construction | $90,000-$220,000 |
| Garage Conversion | $30,000-$80,000 |
What moves the price in Kendall West more than anything is the lot. A half-acre lot with city sewer and no existing structures prices differently than a 1.25-acre lot with a septic drainfield and shallow bedrock. That’s why we don’t quote over the phone. We walk the property, pull the survey, check the setbacks, and then put a written line-item quote in your hands. Call (877) 610-1318 to schedule it. Estimates are free, and there’s no trip charge inside the county.
We Also Serve Cities Near Kendall West
Our crews serve Kendall West and the surrounding communities including Kendale Lakes, Country Walk, The Hammocks, and The Crossings. If you’re a homeowner anywhere along the western edge of Miami-Dade and you’re planning a Home Additions & ADU project, we’ll walk the lot and scope it the same way we would for our own neighbors.
Serving Kendall West, FL - Our Local Coverage Area
We’re based in the Kendall West 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 Kendall West
A Miami-Dade Notice of Acceptance is a county-specific product approval that goes beyond Florida’s statewide building code approval. Miami-Dade has the strictest product-approval system in the country, and inspectors in the western corridor routinely reject materials like hurricane clips, window anchors, and tie-down hardware that carry a Florida approval but lack a specific Miami-Dade NOA number. A contractor unfamiliar with this gets failed inspections and stop-work orders. We carry NOA-approved hardware before rough-in starts, because we know what the inspector will ask for. If you want us to check a product your designer specified, call (877) 610-1318 before you buy it.
A live person answers our phone 24 hours a day, 7 days a week, and we typically schedule a Kendall West site visit within a few days of your call. There is no trip charge inside the county. We don’t promise same-day estimates for an ADU or addition because a rushed quote on a lot with septic setbacks and NOA requirements isn’t a real quote. We’d rather be accurate than fast.
We cover the full Kendall West area within ZIP code 33193, including homes along SW 157th Avenue, the neighborhoods north and south of Kendall Drive, and the acreage lots where Kendall West meets the Everglades buffer. If you’re not sure whether your lot is in our service area, call (877) 610-1318 and we’ll tell you straight.
A garage conversion in Kendall West typically runs $30,000 to $80,000, which is comparable to Kendale Lakes and The Hammocks. What shifts the Kendall West number is the age of the structure. A garage attached to a pre-August 1992 CBS home requires wind-load retrofit work that a 2005 build doesn’t. That retrofit can add several thousand dollars in connectors, strapping, and engineering, and it’s not optional under Miami-Dade code.
Every construction and remodeling job we complete in Kendall West is backed by our 90-Day Done Right Promise, written into the contract. If something isn’t done right, Tom Barrett comes back and makes it right with one call. That promise applies to every scope, from a junior ADU conversion to a full detached build. Call (877) 610-1318 for a free estimate and we’ll put the promise in writing before any work begins.
Building on Kendall West Acreage: What Changes the Price
Kendall West sits at the literal western edge of Miami-Dade’s built environment, where the last streets give way to the Everglades buffer. That location changes everything about how we scope a Home Additions & ADU project. This isn’t city-slick permitting where you file a form and wait for the permit counter. The lots out here are larger, the setbacks are real, and the county, not the city, controls the paperwork.
Septic and well setbacks are the biggest unknowns on Kendall West acreage. A detached ADU needs clearance from the drainfield, the wellhead, and often the neighbor’s system too. On a lot that’s long and narrow, those clearances can push the building footprint several feet in a direction you didn’t plan for. That’s why we run the pre-permit survey before we quote. We don’t want to hand you a price, start digging, and then tell you the bathroom rough-in has to move nine feet and the budget has to grow with it.
Material haul and equipment access also price differently on the western edge. A concrete pump that’s a non-issue in a dense subdivision becomes a logistics question when the lot is a quarter-mile from the nearest paved turnaround. We build that cost into the bid honestly, with a written allowance, so you’re not paying change-order freight charges at the end of the job.
And then there’s the retrofit rule that catches nearly everyone on their first addition in Kendall West: any permitted structural addition on a pre-August 1992 CBS home triggers Miami-Dade’s post-Hurricane Andrew wind-load retrofit. That includes mandatory roof-to-wall tie-down upgrades, even if the addition itself doesn’t touch the roof. The code sees the existing structure as part of the new permitted scope. We scope those connectors into the bid from the first estimate. Tom’s philosophy has never changed on this: the permit inspector works for you, not for me. That’s why I like him.
One Field Example, So You Know How We Work
On a 1.25-acre lot near SW 157th Avenue, we converted a 1991 CBS ranch’s detached two-car garage into a permitted junior ADU. We had the Miami-Dade NOA-approved Simpson Strong-Tie connectors on site before rough-in, because the county inspector wouldn’t sign off on the load-bearing beam change without the specific NOA numbers. The septic setback forced us to rotate the new bathroom rough-in nine feet, so we issued a change order with updated site-prep and subfloor allowances before running the drain line. The client saw every number in writing before work moved. No surprises at the end.
Call Barrett & Sons for Your Kendall West Home Addition or ADU
If you’re ready to talk about an addition, a garage conversion, or a detached ADU in Kendall West, call (877) 610-1318. A live person answers, day or night. We’ll schedule a free on-site estimate, walk your lot, check the setbacks, and put a written line-item quote in your hands. Every job includes permits pulled and inspections signed, every price change arrives as a written change order before work proceeds, and every completed job is backed by the 90-Day Done Right Promise.
Tom Barrett founded Barrett & Sons Construction in 1998. Nearly three decades later, he’s still the one answering the phone and standing behind the work. Ask anyone on your street, or look up the license number yourself. We’ll earn the right to build for you.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Kendall West and the surrounding Miami-Dade communities since 1998.