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 Westview
A home addition or ADU in Westview typically runs $45,000 to $130,000, and the single biggest variable is whether your existing CBS block home needs structural retrofitting to meet Miami-Dade’s High Velocity Hurricane Zone code before framing can even start. We’ve worked on enough 33167 homes to know exactly what the county inspector will flag on the first pass, which keeps your permit moving instead of sitting in review limbo.
If you’re weighing a garage conversion, a detached ADU, or adding a bedroom for an aging parent, the right first step is a straight conversation about what’s realistic on your lot. Call (877) 610-1318 and we’ll walk the property with you, no charge inside Westview.
Why Barrett & Sons Construction Is Westview’s Preferred Home Additions & ADU Company
Westview sits in an unusual spot for construction. It’s unincorporated Miami-Dade, which means permits and inspections run through the county building department, not a local city office. If you’ve ever tried getting a straight answer from that system, you already know the value of a contractor who’s filed hundreds of permits through it. Tom Barrett has, and his sons run the crews that show up on NW 27th Avenue and the side streets off it.
We answer our own phone, we publish our license number, and we put every price change on a written change order before a single nail moves. Homeowners in Westview have seen what happens when an out-of-state outfit quotes one number and hands them another. That doesn’t happen here. If the scope shifts, you see it on paper first and you sign it first. And every completed job carries the 90-Day Done Right Promise: if it’s not right, Tom comes back. One call.
Our Home Additions & ADU Services in Westview
ADU Design & Permitting
Before we draw anything, we check what your Westview lot can actually support. Setback rules, lot coverage limits, and the county’s product-approval database all shape the design, and skipping that step is how you end up with approved plans that can’t be built. We handle the full Miami-Dade permit package, including HVHZ wind-load calculations and NOA compliance on every material. An allowance that isn’t on paper is a surprise waiting for a date, so every allowance is on paper.
Garage Conversion ADU
Garage conversions in Westview are the most budget-friendly path to an ADU, typically running $30,000 to $80,000 depending on finishes and whether plumbing needs to be extended. Most garages in the 33167 ZIP were built with the original CBS home, which means the slab is thin, the electrical panel is undersized, and the roof deck was never designed to carry living-space insulation requirements. We address all three before drywall goes up, because the county inspector will check all three.
New Detached ADU
A detached ADU in Westview is a ground-up build, generally $90,000 to $220,000. The water table here sits 18 to 24 inches below grade in most of the neighborhood, which changes footing depth and drainage design compared to higher ground in Broward. We design for what Westview actually is: flat, low-lying, and subject to afternoon thunderstorms from June through November that can stop a concrete pour mid-day. Sequencing matters, and we plan around the weather instead of pretending it won’t rain.
Junior ADU & Interior Conversion
Not every Westview homeowner needs a full addition. A junior ADU, often a converted interior space with its own efficiency kitchen and entrance, fits inside the existing footprint and costs substantially less than new construction. We’ve converted enclosed porches, bonus rooms, and oversized laundry rooms into legal, permitted living quarters. The same county permit standards apply, and the same written change order process protects you.
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 Westview
We install materials you can look up, not mystery brands off a van. On ADU and addition projects in Westview, that means roofing systems from GAF, shower and bath fixtures from Sterling, and waterproofing systems from Schluter where wet areas are involved. The county’s NOA database is unforgiving: a product approved in Broward but lacking a Miami-Dade Notice of Acceptance will fail inspection, and tearing it out is on your dime unless your contractor checked first. We check first. That’s the difference between a crew that knows 33167 and one that’s passing through.
Common Home Additions & ADU Problems We See in Westview Homes
- Pre-2002 CBS construction without hurricane retrofits. Most Westview homes were built between the late 1950s and early 1970s, well before the post-Hurricane Andrew Florida Building Code overhaul. Roof tie-downs, wall-to-foundation connections, and opening protection often need retrofitting before any addition can pass county inspection in the HVHZ.
- Seasonally high water table affecting footing and drainage design. Westview’s flat, low-lying geography means groundwater can sit 18 to 24 inches below grade. Footing depth and below-grade drainage for a new ADU or room addition must account for this, or you’ll be dealing with slab moisture problems within a few years.
- Unpermitted prior work discovered during addition planning. It’s common in 33167 to find an enclosed porch or converted garage that was done without county permits decades ago. When a new addition ties into that space, the county will require bringing the old work up to current code first. We flag this early so it’s part of the plan, not a surprise during framing.
- NOA non-compliance on proposed materials. Contractors unfamiliar with Miami-Dade’s product-approval database will spec materials that fail inspection because they lack a valid NOA number. Using a brand approved in Broward or Palm Beach but not in Miami-Dade means full tear-out and replacement. We verify NOA on every material before it’s ordered.
Pricing for Home Additions & ADU in Westview, FL
What moves the number: whether your existing CBS structure needs hurricane retrofits, how deep footings need to go given the water table, and whether we’re running new sewer or tying into existing lines. Every quote includes a written scope, written allowances, and a written change order process. Call (877) 610-1318 for an exact quote, free inside Westview.
We Also Serve Cities Near Westview
We work throughout northern Miami-Dade, so if you’re in Pinewood, Opa-locka, Gladeview, or West Little River, the same crew that serves Westview handles the work. Wherever you are, the process is the same: written scope, county permits pulled, and the 90-Day Done Right Promise on every completed job.
Serving Westview, FL - Our Local Coverage Area
We’re based in the Westview area and know this community well, offering our Roofing in Westview to local homeowners. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Home Additions & ADU in Westview
How much does a home addition or ADU cost in Westview?
A room addition in Westview runs $45,000 to $130,000, a garage conversion $30,000 to $80,000, and a new detached ADU $90,000 to $220,000. The biggest swing factors are hurricane retrofits on pre-2002 CBS structures, footing depth related to the high water table, and plumbing extension distance. Call (877) 610-1318 for a written line-item quote, free in Westview.
Do you handle Miami-Dade County permits for Westview projects?
Yes, on every eligible job. Westview is unincorporated Miami-Dade, which means the county building department, not a municipal office, reviews and inspects the work. We file the complete permit package, including HVHZ wind-load calculations and NOA verification, and we don’t start until the permit is issued. The permit inspector works for you, not for me, which is exactly why I like him.
Will the price change once work starts in Westview?
Only if the scope changes, and only in writing. Every allowance, every price adjustment, every unforeseen condition gets documented as a written change order that you sign before work proceeds. No surprise invoices at the end. Westview’s older CBS homes sometimes reveal hidden conditions during demo, like unpermitted prior work, and we handle those the same way: paper first, work second.
How long does a typical ADU or addition take in Westview?
A garage conversion typically runs 3 to 5 months, a new detached ADU 6 to 10 months, and a room addition 4 to 7 months once the permit is issued. Westview’s June through November hurricane season can add days when exterior work has to pause for storm watches, and afternoon thunderstorms regularly interrupt concrete pours. We build that reality into the schedule instead of promising a date the weather won’t allow.
Is your warranty honored in Westview?
Yes. Every job we complete in Westview carries the written 90-Day Done Right Promise. If something isn’t done right, Tom Barrett comes back and makes it right, one call. You’ll also have manufacturer warranties on every brand we install, from GAF roofing to Schluter waterproofing, and we provide all of it in writing at the end of the job. Call (877) 610-1318 to schedule your free estimate.
Contact Barrett & Sons Construction
If you’re planning a home addition or ADU in Westview, start with a conversation. We’ll walk your property, talk through what’s realistic for your lot and your budget, and give you a written estimate with no trip charge inside the county. Call (877) 610-1318 to schedule your free estimate today.
Additionally, if your addition plans include updating the existing home, we also handle Kitchen Remodeling in Westview and Bathroom Remodeling in Westview. Our Home Additions & ADU team can fold both into the same permit package, saving you time and county review cycles.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Westview and northern Miami-Dade County.