Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Oakland Park
Adding square footage to an Oakland Park home means planning around flood zones, a water table that sits just 2 to 4 feet below grade, and Broward County’s substantial improvement rules. Most additions and ADUs here land between $45,000 and $130,000 for a room addition, with detached ADUs running $90,000 to $220,000. We scope every Oakland Park job against FEMA maps, county permit requirements, and your existing slab before we quote. Call (877) 610-1318 and we’ll walk the property with you.
Why Barrett & Sons Construction Is Oakland Park’s Preferred Home Additions & ADU Company
Tom Barrett founded this company in 1998, and his sons run the crews. When we quote a detached ADU off NE 16th Avenue or a second story addition near Andrews Avenue, the person who signed the contract is the same person on-site most days. Oakland Park homeowners have dealt with national outfits that quote one number on the phone and show up with another. We put every allowance and every change order in writing before work starts. The permit inspector works for you, not for me, that’s why I like him.
We answer our own phone, 24 hours a day. No call center, no voicemail box. When an Oakland Park homeowner calls about a garage conversion on a 1950s CBS ranch, they talk to someone who knows what a monolithic slab and jalousie windows mean for the scope. Our Home Additions & ADU team has walked dozens of these homes, and we quote them honestly the first time. An allowance that isn’t on paper is a surprise waiting for a date.
Our Home Additions & ADU Services in Oakland Park
New Detached ADU
A detached ADU in Oakland Park is a different animal than one in Fort Lauderdale’s ridge areas. The entire city sits in FEMA-mapped flood zones, so the slab elevation, flood-vent openings, and mechanical placement get set by the floodplain office, not by preference. We frame with load-bearing CMU to match the existing CBS house, and we budget for dewatering when the excavation hits groundwater at 2 feet. A detached ADU with a bath and kitchenette typically runs $90,000 to $220,000 in Oakland Park depending on finish level and site constraints.

Garage Conversion ADU
Converting an attached garage in Oakland Park usually means working inside the existing footprint of a 1950s to 1970s concrete block home. That’s often the smartest path because it avoids new slab work and the water table entirely. Garage conversions here run $30,000 to $80,000. The catch: if the scope crosses Broward County’s substantial improvement threshold, about 50% of the assessed structure value, the city will require wind mitigation and possibly flood upgrades before issuing a certificate of occupancy. We run that check before you sign anything.

Junior ADU & Interior Conversion
A junior ADU built inside the existing walls of an Oakland Park ranch, think enclosed patio or underused family room, works well for aging parents or rental income. The work stays within the original slab, which sidesteps the water table. But interior conversions on older CBS homes still hit the same code questions: electrical panels, window openings, and egress. We handle the permitting alongside the framing so you don’t get a red tag halfway through. Junior ADUs and interior conversions fall within the broader Home Additions & ADU in Oakland Park pricing, most often $45,000 to $130,000.

ADU Design & Permitting
Before a single block gets laid, we sit down with your survey, your flood zone designation, and the county’s current substantial improvement rules. Oakland Park projects frequently ping-pong between city and Broward County review because the city administers some permits while the county holds floodplain authority. We pull every permit, schedule every inspection, and keep the paper trail clean. If the county asks for flood vents or roof-to-wall strapping retrofits, you’ll see it as a written change order before it becomes a surprise invoice.

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.
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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 Oakland Park
For impact-rated openings on an Oakland Park addition, we carry PGT and Simonton windows. On exterior doors and sliders, we use CGI. These are named brands you can look up, not mystery materials off a van. If a hurricane blows through while your addition is open-frame, and it will at some point, those impact ratings matter. We stock common sizes for quick turnaround on Oakland Park projects, and our crews know how those products interface with CMU walls and monolithic slabs.
Common Home Additions & ADU Problems We See in Oakland Park Homes
- The substantial improvement trap. A homeowner adds a second story to a 1960s CBS home without checking the county’s 50% threshold. The project gets red-tagged mid-framing, and suddenly the existing house needs roof-to-wall strapping and impact openings. That doubles the cost after the contract is signed.
- Water table surprises. A contractor quotes an ADU without accounting for the 2 to 4 foot water table. Excavation fills with groundwater, the slab pour gets delayed, and the owner eats the extra dewatering cost because it wasn’t scoped. We include dewatering in every Oakland Park ADU quote where the soil boring says we’ll hit water.
- Drainage that turns the new slab into a dam. On an open lot, the new addition’s elevation and grading need to move water away from the original house. Get it wrong and the first wet season sends sheet flow through the new doorway and into the old living room. We grade and drain the addition so water never turns on you.
- Septic and well setbacks nobody checked. Some Oakland Park parcels still sit on septic and wells. An ADU placement that violates county setback rules means a new drainfield or a waterline extension you never budgeted for. We verify setbacks before we stake the corners.
Pricing for Home Additions & ADU in Oakland Park, FL
Here’s what we quote in Oakland Park, and we put these numbers on paper before work starts.
| Project | Oakland Park Price Range |
|---|---|
| Home Addition | $45,000 - $130,000 |
| ADU Construction | $90,000 - $220,000 |
| Garage Conversion | $30,000 - $80,000 |
What moves the number: flood zone designation, whether we’re adding a second story to a 1960s CBS home that needs hurricane strapping retrofits, how deep the water table sits on your lot, and whether the county’s substantial improvement threshold kicks in. Every quote includes a written scope, written allowances, and written change orders before any scope change touches the job. Call (877) 610-1318 and we’ll give you a line-item price, not a ballpark.
We Also Serve Cities Near Oakland Park
Barrett & Sons Construction serves homeowners throughout the surrounding area, including North Andrews Gardens, Wilton Manors, Lauderdale-by-the-Sea, and Sunrise. The rules may change across city lines, but our written change order policy doesn’t. If you’re near Oakland Park and considering an addition, we’ll be out the same week.
Serving Oakland Park, FL - Our Local Coverage Area
We’re based in the Oakland Park 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 Oakland Park
Yes, a detached ADU in Oakland Park requires both city and Broward County review because the county holds floodplain authority for Oakland Park’s FEMA-mapped flood zones. The city handles building and zoning, while the county reviews flood-vent openings, slab elevation, and mechanical placement. We pull both sets of permits and track both inspection tracks. Call (877) 610-1318 before you file anything, and we’ll tell you which reviews your specific lot will trigger.
It depends on your home’s assessed structure value and the scope of the addition. Broward County uses 50% of the assessed value as the trigger, and a 400 sq ft ADU can push you over that line if your existing home is a modest 1950s CBS ranch assessed around $90,000 to $150,000. If triggered, the county requires flood-vent installation, elevation compliance, and possibly wind mitigation retrofits on the existing structure. We run this math before we quote, so you know on day one whether your ADU is a simple addition or a compliance project. Call (877) 610-1318 and we’ll check your tax records together.
Typically yes. Most 1960s CBS ranches in Oakland Park were built before the post-Hurricane Andrew Florida Building Code overhaul, so they lack roof-to-wall hurricane clips. When you add a second story, the new load path forces the existing roof-to-wall connection into compliance, which means strapping retrofits on the original structure. That’s a real cost, and we put it in the quote rather than surprising you mid-framing. Call (877) 610-1318 for an exact figure on your house.
We plan for dewatering before excavation starts. Oakland Park’s water table sits 2 to 4 feet below grade across most of the city, so any slab work means sump pumps, possibly well points, and a pour schedule that accounts for groundwater. We also coordinate with the county on slab elevation and flood-vent placement so the slab passes inspection the first time. These costs are in our written scope, not added later. Call (877) 610-1318 and we’ll walk your lot before we quote.
Yes, and for most Oakland Park homes it avoids the water table entirely because you’re staying on the existing slab. Garage conversions run $30,000 to $80,000 and work well for 1950s and 1960s CBS ranches. The main caveat is the substantial improvement threshold: if the conversion pushes your scope past 50% of assessed value, the county may require flood and wind upgrades before sign-off. We run that check first. Call (877) 610-1318 for a free estimate.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Oakland Park with written quotes and name-on-the-truck accountability since 1998.







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