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 Golden Glades
Home additions and ADU construction in Golden Glades run $45,000-$130,000 for most room additions, while a new detached ADU typically lands between $90,000 and $220,000. Those are real numbers for this market, not ballpark guesses, and they reflect something most out-of-town contractors miss: everything here routes through Miami-Dade County’s HVHZ permitting system. Call (877) 610-1318 and we’ll give you a written line-item estimate before you sign anything.
We work in Golden Glades every week, from the streets off NW 7th Avenue back to the 33162 zip code’s quieter corners. Our crew showed up here on a Tuesday, met the family, walked the lot, and had permit drawings in their hands before the month ended. That’s how Barrett & Sons has operated since Tom Barrett founded the company in 1998.
Why Barrett & Sons Construction Is Golden Glades’s Preferred Home Additions & ADU Company
Tom Barrett’s name, address, and license number are published. Look us up before you sign anything; we’d rather you did. The company’s been owner-operated for over 29 years, and Tom’s sons run the crews that show up in Golden Glades. You’ll see the same faces from the first estimate to the final inspection, not a rotating cast of subcontractors dispatched from somewhere else.
Our Golden Glades customers get a direct line to a live person, 24/7. Not a voicemail box, not an out-of-state call center. When an HVHZ plan reviewer kicks back a submittal over a roof tie-down detail, you hear about it from us the same day, with the fix already in motion. The permit inspector works for you, not for us, and that’s exactly how we like it.
Every scope, every allowance, every price change arrives as a written change order before work happens. No surprise invoices at the end. The allowance that isn’t on paper is a surprise waiting for a date, and we don’t do surprises.
Our Home Additions & ADU Services in Golden Glades
New Detached ADU
A detached ADU in Golden Glades gives you a separate rental unit, an in-law suite, or a quiet office away from the main house, without the shared-wall compromises of a garage conversion. These jobs demand careful HVHZ tie-down sequencing and a footing plan that handles the wet-season water table. We scope every one with the county’s product-approval list in front of us, so the windows and roof straps we specify pass plan review the first time.
ADU Design & Permitting
Before a single nail moves in Golden Glades, your drawings go through Miami-Dade County’s Permitting and Inspection Center. That’s not a city hall process. We handle the Notice of Commencement, the HVHZ plan review, and every revision. One wrong form filed here adds weeks. We’ve done enough of them that we know which line items the reviewers flag first.
Garage Conversion ADU
Converting an attached or detached garage in Golden Glades runs $30,000-$80,000 and almost always surfaces missing hurricane straps and single-pane windows that can’t pass current code. We bring the existing structure up to HVHZ standard before we frame the interior, because the inspector will check the load path from roof to slab whether the garage was built in 1962 or 1992.
Junior ADU & Interior Conversion
A junior ADU tucks a small, self-contained unit inside the footprint you already have, often with a separate entrance and a kitchenette. In Golden Glades, these jobs still trigger county review if you’re adding plumbing or electrical, and the existing roof connections often need retrofitted straps. We plan for those findings up front, so the price doesn’t move mid-job.
We also handle Home Additions & ADU projects of every size across Golden Glades, from single room additions to full second-story builds. The scope changes, but the process stays the same: written pricing, county permits, HVHZ-compliant materials, and a 90-Day Done Right Promise on every completed job.
What happens when you call
- 1
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 Golden Glades
We install windows and doors our Golden Glades customers can look up and verify before we order them. On ADU and addition projects here, we regularly specify PGT impact-rated windows and doors because they carry Miami-Dade product approvals that survive HVHZ plan review without delays. For non-impact openings and interior applications, we use Simonton and Ply Gem lines with the same county acceptance. If you’re replacing jalousie windows on a 1960s CBS home in Golden Glades, we’ll show you the exact product approval numbers before you commit.
Common Home Additions & ADU Problems We See in Golden Glades Homes
- Missing hurricane straps on pre-1994 block homes. Most Golden Glades houses were built before the Florida Building Code tightened after Andrew. When we open a wall or attic, we routinely find roof-to-wall connections that wouldn’t pass a county inspection today.
- High water table flooding footings and trenches. Near-sea-level lots on porous limestone mean the wet-season water can sit just below grade. Without a dewatering plan, a footing dig turns into a swimming pool and a change order.
- Wrong product approvals on windows and doors. Materials that sail through in Broward County get rejected here by HVHZ reviewers. We’ve seen contractors quote low, then ask for more when the approved windows cost twice what they priced.
- Unincorporated confusion on permits. Golden Glades has no city building office. Everything routes through Miami-Dade County, and the Notice of Commencement filing is where first-timers lose two weeks.
Pricing for Home Additions & ADU in Golden Glades, FL
Here’s what you should expect to pay in Golden Glades for the most common projects we take on. These reflect HVHZ materials, county permitting, and the water-table prep this area demands.
| Project Type | Typical Golden Glades Price Range |
|---|---|
| New Detached ADU | $90,000-$220,000 |
| Room Addition | $45,000-$130,000 |
| ADU Site Prep & Utilities | $3,500-$11,000 |
Site prep deserves its own line. In Golden Glades, a detached ADU often needs dewatering during excavation, imported fill, and longer utility runs back to the house. That’s $3,500-$11,000 before we frame a wall, and any contractor who buries that cost in a vague “site allowance” is setting you up for a surprise. We write it as a separate line item, in writing, before you sign.
We Also Serve Cities Near Golden Glades
Our crews work throughout Golden Glades and the surrounding communities, including Ives Estates, Lake Forest, Norland, and North Miami. If you’re a few minutes outside the 33162 zip code, call us anyway. The estimate is free, and we’ll tell you straight whether we’re the right fit for your job.
Serving Golden Glades, FL - Our Local Coverage Area
We’re based in the Golden Glades 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 Golden Glades
All permits for Golden Glades route through Miami-Dade County’s Permitting and Inspection Center, not a city building office. That means your project must satisfy HVHZ plan review, and we file the Notice of Commencement correctly from day one. Call (877) 610-1318 and we’ll walk you through exactly which county forms your specific project needs.
HVHZ compliance adds 8-15% to materials and engineering on a typical Golden Glades ADU, mostly from impact-rated openings, engineered roof tie-downs, and the county’s product-approval requirements. The good news: planning for it up front keeps the price honest. We write every HVHZ line item into your estimate before work starts.
Yes, and it should show up as a separate site-prep line item, not a vague allowance. Depending on your lot’s elevation and the season, expect dewatering, possible fill, and a thicker slab or elevated stem wall. On lots near the Golden Glades interchange, we’ve seen water table issues add $4,000-$9,000 to foundation work. We test before we quote, so the number is real.
No. The county will not sign off on a garage conversion in Golden Glades unless the existing structure meets current HVHZ standards for roof-to-wall connections, openings, and structural load path. That often means adding hurricane straps, replacing old jalousie windows, and sometimes reframing the roof deck. We budget for those findings in the initial scope, not as a change order later.
They price Broward County materials and a city permit process that doesn’t exist here. When the HVHZ reviewer rejects their window specs or the water table floods their trench, the change orders start. We saw it happen on NW 7th Avenue near the interchange when a crew framed a 600-square-foot ADU behind a 1960s CBS home and had to wait out a June storm before rough-in. We’d already installed Simpson Strong-Tie straps and impact-rated windows, and the county inspector signed off on the load path before we closed the walls. That’s the difference: we scope Golden Glades jobs for Golden Glades conditions. Get a written, line-item quote from us at (877) 610-1318 and compare it to theirs. You’ll see where the savings go.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Golden Glades and surrounding Miami-Dade County communities. Tom founded the company in 1998, and his sons run the crews that build here today.