Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Before
After
Before
After
Before
AfterFast, Reliable Home Additions & ADU Across Miami Lakes
Adding square footage to a Miami Lakes home is not like adding it anywhere else in South Florida. A home addition or ADU here runs $53,100 to $153,400 for a typical project, and a detached ADU will usually land between $106,200 and $259,600. Those numbers reflect something most contractors won’t tell you on the phone: Miami Lakes sits inside one of the strictest building jurisdictions in the United States, and a planned community with a second layer of approvals on top of the county. If you’re on Miami Lakes Drive, in the Lake Patricia area, or anywhere in 33014, we can walk your property and give you a real number before you commit. Call (877) 610-1318 for a free, no-trip-charge estimate inside the county.
Our Home Additions & ADU team knows what the walls in these houses actually contain, because we’ve opened enough of them. That’s a knowledge set you only get by doing the work here year after year, not by dispatching a rotating crew.
Why Barrett & Sons Construction Is Miami Lakes’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998, and his sons run crews on most Miami Lakes jobs. That’s not a franchise sending strangers in a wrapped van, and it’s not a national outfit quoting one price on the phone and handing you another one at the door. Our name is on the truck, our address and license number are published, and you can look us up before you sign anything.
Miami Lakes homeowners have a specific set of headaches that most addition contractors never mention. The Graham Companies built this town as a master-planned community beginning in 1962, and they retained architectural review covenants over much of the original platted area. That means an exterior addition or ADU in Miami Lakes requires two sign-offs: the Miami-Dade County permit and a separate Graham or HOA covenant review. Skip the second one and you can get a stop-work order even after the county has stamped your permit. We’ve seen it happen to out-of-town contractors. We file both tracks before demolition starts, so the job doesn’t stall mid-framing.
When our crew opens a wall in a 1960s or 1970s CBS home near Bull Run Road or Miami Lakes Middle School, we find things. Aluminum wiring. Roof-to-wall connections with no hurricane clips. Window rough openings that don’t meet High Velocity Hurricane Zone standards. Out-of-town bids ignore these because the estimator never pulled the drywall. Our quotes include a line for what we expect to find, and a written allowance for what we can’t see until the wall is open. That’s the difference between a contract you can plan around and a surprise invoice at the end.
Calls to (877) 610-1318 are answered by a live person, day or night. Not a voicemail box. Not a call center in another state. You’ll talk to someone who knows where Miami Lakes is, because we work here every week.
Our Home Additions & ADU Services in Miami Lakes
ADU Design & Permitting in Miami Lakes
A detached ADU in Miami Lakes starts with two questions most people never ask: what does the Graham covenant allow on my lot, and what will Miami-Dade’s HVHZ code require for the roof, windows, and tie-downs? We handle both. Our design team draws to the covenant restrictions first, then to county code, because a beautiful plan that the HOA rejects is a drawing you paid for twice. The permitting track for an ADU in Miami Lakes typically runs longer than unincorporated Miami-Dade because of the dual review, and we factor that lead time into the schedule up front.
Garage Conversion ADU in Miami Lakes
Converting an attached garage into a rental unit or an in-law suite is the most common ADU path in Miami Lakes, because the footprint already exists and the roof is already up. $35,400 to $94,400 covers a typical conversion here, but the opening-up costs are real. A 1970s garage in the original Graham platted sections often has a slab poured without rebar, an electrical subpanel that feeds off aluminum branch circuits, and a garage door header that was never engineered for a full window wall. We price those correctly the first time, and every change arrives as a written change order before work proceeds.
New Detached ADU in Miami Lakes
Building a detached ADU in Miami Lakes from bare ground means dealing with the water table. Western Miami-Dade sits on a shallow limestone aquifer, and during wet season from June through October the water can rise to within two or three feet of grade. Footings need active dewatering before concrete is poured, and many parcels near the town’s chain of man-made lakes and drainage canals sit in FEMA flood zones that require elevated finished floor heights. We build those elevation requirements into the budget from day one, because a footing that floods before the pour is a five-figure mistake no homeowner should eat. Count on $106,200 to $259,600 for a well-built detached ADU in Miami Lakes.
Junior ADU & Interior Conversion
A junior ADU is often the smartest play for Miami Lakes homeowners with a larger single-family home and an underused wing or oversized bedroom. We convert interior space into a self-contained unit with its own entrance, kitchenette, and bath. The structural risk is lower than a detached build, but the electrical reality is the same: pre-1992 Miami Lakes homes carry aluminum branch wiring that will not pass inspection under a new permit. Expect a full circuit rewire on the affected area when the walls open. We include an allowance for that the first time, and anything we find is priced and approved in writing before we touch it.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Miami Lakes
When we install finishes in a Miami Lakes addition, we use materials you can look up, not mystery brands off a van. Schluter waterproofing systems in every shower and wet area, GAF roofing on any addition or ADU that ties into an existing roof line, and Sterling fixtures where solid, serviceable hardware matters more than marketing. We stock the common repair parts for these brands locally, so a mid-job material issue doesn’t stall your project for a week. If you replace a window in your new room addition, you’re buying a Miami-Dade County Product Approved unit, period. We spec those exact products because we know the inspector in Miami Lakes will check the approval label before signing off.
Common Home Additions & ADU Problems We See in Miami Lakes Homes
Every older house has secrets. In Miami Lakes, the secrets are predictable if you’ve been inside enough of them. Here’s what we regularly find when the walls come open:
- Aluminum branch wiring from the original build. Homes built before the mid-1970s in the Graham platted sections often still carry aluminum circuits. A permit on an addition or ADU triggers the requirement to bring those circuits up to current code, which means a rewire nobody quoted over the phone.
- Roof-to-wall connections without hurricane clips. Pre-HVHZ construction anchors trusses with basic toe-nails or light straps. Any structural addition tied into an existing roof line requires retrofitting Simpson H2.5A ties or equivalent before the county inspector will sign off.
- Window and door rough openings undersized for impact glass. The block walls are solid, but the original window bucks are not. When you add a room or convert a garage, the inspector requires whole-opening upgrades on adjacent openings that fail HVHZ standards, which changes the materials budget quickly.
- Graham covenant mid-project stops. An out-of-town contractor who files the county permit but skips the Graham or HOA review will hit a stop-work order after framing begins. The homeowner pays for the delay, not the contractor who missed it. We file both tracks before we move a wall.
Pricing for Home Additions & ADU in Miami Lakes, FL
Here’s the honest price picture for Miami Lakes, Florida. A standard room addition runs $53,100 to $153,400 depending on square footage, finish level, and what’s hiding in the walls. A garage conversion to ADU typically lands between $35,400 and $94,400, and a new detached ADU starts around $106,200 and can reach $259,600 for a fully finished unit with separate utilities. The Miami Lakes-specific costs are real and we don’t bury them: HVHZ impact window and door upgrades, aluminum wiring remediation, hurricane tie-down retrofits, Graham covenant fees, and dewatering for footings near the lakes and canals. We give you all of those as line items, written into your contract as allowances. If the allowance moves, you get a written change order before the scope changes. Call (877) 610-1318 for a free estimate, and we’ll give you the number in writing, not a promise over the phone.
| Project Type | Typical Range in Miami Lakes |
|---|---|
| Home Addition | $53,100 - $153,400 |
| ADU Construction | $106,200 - $259,600 |
| Garage Conversion | $35,400 - $94,400 |
We Also Serve Cities Near Miami Lakes
Our crews work the whole northwestern Miami-Dade corridor. In addition to our work across Miami Lakes, we serve homeowners in Hialeah, Hialeah Gardens, Country Club, and Palm Springs North. If you’re a few miles away and deciding on an addition or ADU, same rules apply: free estimate, written pricing, permits pulled. Call (877) 610-1318.
Serving Miami Lakes, FL - Our Local Coverage Area
We’re based in the Miami 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 Miami Lakes
Because Miami Lakes is in Miami-Dade County’s High Velocity Hurricane Zone, and the original windows and doors on most pre-1992 homes were installed long before current impact-resistance standards existed. When you pull a permit for a room addition or ADU that ties into the existing structure, the county inspector checks adjacent openings against current HVHZ code. If the frames, glass, or anchoring don’t meet the standard, the permit sign-off requires an upgrade to Miami-Dade County Product Approved impact windows or approved shutters on those openings. It’s not a contractor upselling you; it’s the inspector enforcing the code. Budget for it from the start and there are no surprises at final inspection. Call (877) 610-1318 and we’ll tell you exactly what your house will likely need.
Yes. Miami Lakes’s original planned-community covenants, administered through the Graham Companies or the relevant HOA for your section, require a separate architectural review for any exterior addition, detached ADU, or façade-altering structural change. The county building permit and the Graham covenant review are two separate tracks, and neither substitutes for the other. A county permit issued without covenant approval can still result in a stop-work order once the HOA learns framing has begun. We file both applications in parallel and don’t order materials until both clear. That sequencing costs a little more in paperwork time and saves you a stopped job and a very unpleasant HOA hearing.
Western Miami-Dade sits on a limestone aquifer, and during the June-through-October wet season the water table in Miami Lakes can rise to within two or three feet of grade. That means any excavation for a detached ADU footing, slab, or utility trench will likely hit groundwater. A proper foundation in these conditions requires active dewatering pumps and sometimes a modified footing design, especially on parcels near the town’s chain of man-made lakes and canals. FEMA flood zone requirements may also force an elevated finished floor height. Out-of-town bids that don’t include dewatering are not cheaper, they’re just incomplete. Our Miami Lakes ADU estimates carry that line item from the first draft.
We stop and write it up. On a 1970s CBS home off Miami Lakes Drive, our crew opened the wall for a junior ADU conversion and found original aluminum wiring and a roof-to-wall connection with no hurricane clips. We stopped work, wrote a change order for a full circuit rewire and Simpson H2.5A tie installation, and repriced the job before any new framing went up. The inspection sign-off came two weeks later than the original schedule, but every code upgrade was documented and signed. That’s how Tom Barrett runs every Miami Lakes job: scope in writing, allowances in writing, change orders in writing, and nobody touches a wall until you’ve approved the number.
Because Miami-Dade’s HVHZ code and Miami Lakes’s Graham covenant review create more inspection milestones than a standard Broward County conversion, and those milestones are exactly where you should release payment. A draw schedule tied to county and covenant sign-offs means you never pay a contractor in full for work the inspector hasn’t verified, and any stop-work risk falls on the builder for finishing the work, not on you for advancing money on unapproved framing or undocumented electrical. In Miami Lakes, with two approval tracks, the inspection-tied draw is the single best protection a homeowner can have. We include that structured draw schedule in every ADU and addition contract, written on the same page as the 90-Day Done Right Promise.
If you’re planning a room addition, a garage conversion, or a new ADU in Miami Lakes, call (877) 610-1318 for a free estimate. We’ll walk your property, check the walls, check the covenant status on your lot, and give you a written price with no change orders except the ones you approve in writing first.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Miami Lakes and the surrounding Miami-Dade communities since 1998.