Home Additions & ADU in Westview - One Fixed Price, Permits Handled

Fast, Reliable Home Additions & ADU Across Westview

Adding square footage in Westview means working with Miami-Dade County’s High Velocity Hurricane Zone code, not a generic Florida permit. A home addition or ADU here runs $45,000-$130,000 for most room additions, while a detached ADU typically lands between $90,000-$220,000. We know the difference between a Notice of Acceptance product approval and one that will fail inspection on day one, because we pull permits through the county building department every week. Call (877) 610-1318 for a free estimate, and Tom Barrett will walk your lot with you before anything gets signed.

Call (877) 610-1318

Why Barrett & Sons Construction Is Westview’s Preferred Home Additions & ADU Company

Barrett & Sons Construction has been owner-operated since 1998, and Tom Barrett or one of his sons is on-site most days in Westview. That matters here because Westview sits in unincorporated Miami-Dade, so every permit goes through the county’s building department, and every material needs a valid Miami-Dade NOA number. A crew rolling in from Broward with a cheaper bid will find that out the hard way, and you will be the one paying for the tear-out.

Our Westview customers have learned to check the license number before signing anything. Tom publishes his name, his address, and his license number, and he will tell you to look it up. Every scope, every allowance, every price change comes as a written change order before work happens. The allowance that isn’t on paper is a surprise waiting for a date, and that is not how we do business in Westview.

We also carry the 90-Day Done Right Promise on every Home Additions & ADU job. If something isn’t done right, one call brings Tom back. That promise is written on the contract, not buried in fine print, and it applies to garage conversions, second story additions, and sunrooms alike across the 33167 ZIP.

Our Home Additions & ADU Services in Westview

ADU Design & Permitting

Most Westview lots were platted in the late 1950s through early 1970s, which means setbacks and lot coverage rules are tighter than newer subdivisions. We design ADUs that fit the existing CBS home’s lines without triggering zoning variances that stall a project for months. Every ADU design we produce in Westview routes through Miami-Dade’s product approval database before we submit, so the inspector sees materials with valid NOA numbers from the first plan review.

Garage Conversion ADU

Garage conversions in Westview run $30,000-$80,000 and are often the most cost-effective way to add a rental unit or a quiet space for aging parents. The catch here is the high water table, which sits within 18-24 inches of grade through much of the area. That means we usually need to address slab elevation, moisture barriers, and proper drainage before framing interior walls, or you get damp floors and mildew within a season. We have done enough garage conversions in the neighborhoods off NW 27th Avenue to know where the water wants to go.

New Detached ADU

A new detached ADU in Westview starts around $90,000 and can exceed $220,000 depending on size, finishes, and whether you need a new electrical service drop from FPL. Detached units require their own footing design because of the high water table, and every structural fastener has to carry Miami-Dade NOA approval. We have built detached ADUs on lots near the Miami-Dade College North Campus area, and we sequence the work around summer storm patterns so concrete pours don’t get ruined by afternoon thunderstorms.

Junior ADU & Interior Conversion

A junior ADU carved out of existing square footage is the fastest way to add a rental-ready space in Westview without touching the lot lines. These conversions typically attach a kitchenette and private entrance to a portion of the main house, and they cost less than a full addition because the shell already exists. We work with the original mid-century floor plans common in this ZIP, which often have a den or utility room that converts cleanly.

Trusted Brands We Service in Westview

When we install fixtures and finishes in Westview, we use brands you can look up, not mystery materials off a van. That includes Schluter waterproofing systems in wet areas, Sterling and Grohe fixtures where plumbing is involved, and GAF roofing products when a second story addition or sunroom ties into the existing roof line. We stock common replacement parts locally for Westview customers, so a trim piece or drain assembly doesn’t leave your project stalled for a week while something ships from out of state. Our Home Additions & ADU team keeps these materials on hand because we know Westview’s humid, storm-heavy climate punishes cheap components fast.

Common Home Additions & ADU Problems We See in Westview Homes

• Pre-Andrew tie-downs on original roof decks. Most Westview homes were built before the 2002 Florida Building Code overhaul, so any second story addition or roofline tie-in requires retrofitting the existing roof-to-wall connections to current HVHZ standards. Skipping this is how you get a new addition and a lifted roof in the same storm.
• High water table wrecking slab decisions. With groundwater often within 18-24 inches of grade, we see additions with improper footing depth and no moisture barrier. The first heavy wet season shows the mistake through cracking floors and musty drywall, and it costs more to fix than to have done right the first time.
• Non-NOA materials from out-of-area bidders. A contractor from Broward or Palm Beach may bring materials approved in those counties but lacking a Miami-Dade NOA. The inspector will fail the job, and the teardown is on the homeowner. We verify every product number before it reaches your Westview property.
• Unpermitted interior conversions discovered at resale. We regularly see dens and utility rooms that were converted to sleeping areas without permits. When you go to sell a home in Westview, the county records catch up, and you are stuck curing someone else’s shortcut. We pull permits and sign inspections on every eligible job.

Pricing for Home Additions & ADU in Westview, FL

We Also Serve Cities Near Westview

While this page is for Westview homeowners, our crews regularly work in Pinewood, Opa-locka, Gladeview, and West Little River. If your property sits near the NW 27th Avenue corridor or just over the line from one of those communities, we can help with Kitchen Remodeling in Westview as part of a larger addition, or Bathroom Remodeling in Westview when you add a new bath to the footprint. Same owner-operated crew, same written change orders, same done-right promise.

FAQs - Home Additions & ADU in Westview