Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Plantation
Home additions and ADU construction in Plantation typically run $45,000-$130,000 for room additions and $90,000-$220,000 for detached ADUs, with most projects taking 3-6 months from permit to final inspection. We also offer Bathroom Remodeling in Plantation for homeowners looking to upgrade within their existing footprint. We’re Rowan Construction Group, and our crews work Plantation regularly from our South Florida dispatch office. Call (754) 254-7676 to schedule your free estimate.
Plantation’s planned-city grid means we know the difference between a 1960s CBS ranch off Broward Boulevard and a half-acre Plantation Acres property on septic and well. That distinction changes your permit path, your setback measurements, and your foundation strategy. We scope it before we quote it.
Why Rowan Construction Group Fort Lauderdale Is Plantation’s Preferred Home Additions & ADU Company
We’ve delivered written, flat-price quotes on over 4,000 projects since 2007, and a significant share of those have been in Broward County’s High-Velocity Hurricane Zone. Plantation homeowners find us because they read the three-star reviews and want to see the documentation before the crew arrives. We show them.
Our Home Additions & ADU team carries current Florida Product Approval verification on every window, door, and roofing product we specify. In Plantation, that is not optional paperwork. It is the permit. Out-of-area contractors miss this constantly and stall jobs at inspection.
Calls route to a live person 24/7. Crews arrive background-checked and uniformed. Every visit produces a documented photo record, included as standard. Under Clause 1 of The Haven Standard, your price is written before anyone picks up a tool. Under the 365-Day Done Right Promise, if it is not done right, we make it right.
We serve Plantation from our Miami-area dispatch office, with crews local to Broward County. Response time to Plantation neighborhoods is typically same-week for initial consultation.
Our Home Additions & ADU Services in Plantation

ADU Design & Permitting
ADU permitting in Plantation splits along a geographic line. Eastern subdivisions platted in the 1950s-1980s fall under city zoning with tight side-yard setbacks. Plantation Acres properties on the western edge often trigger Broward County environmental health review for septic drainfield and wellhead setbacks. We verify the exact drainfield location from the as-built or a new survey before we draw anything. A hand sketch and a hope is how change orders happen. We do not quote until we know the setback distances in writing.

Garage Conversion ADU
Garage conversions in Plantation’s 1960s-1980s CBS housing stock are common, but they are never cosmetic. The existing slab-on-grade floor may need a new subfloor to meet living-space requirements. Any new sleeping room requires egress and impact-rated opening protection under HVHZ rules. We replaced the single-pane aluminum opening above a garage door with an impact-rated window assembly for a family off Pine Island Road, keeping the existing CBS walls and documenting every Florida Product Approval number. The permit passed. No change order.

New Detached ADU
Detached ADUs are where Plantation Acres distinguishes itself from the rest of Broward. Half-acre lots with septic and well systems allow structures that eastern Plantation simply cannot accommodate. But county environmental health reviews the drainfield and wellhead setbacks, not the city. We built a detached ADU behind a 1970s ranch where the original wood-frame shed had to come down and the new slab had to clear the existing drainfield. Our tech switched the HVAC rough-in to a mini-split with a dedicated disconnect, documented the Florida Product Approval numbers on every window and door, and passed Broward County’s environmental health and building inspections without a change order. That is the discipline Haven acquired Rowan for.

Junior ADU & Interior Conversion
Junior ADUs work within the existing footprint, often partitioning a master suite or converting underutilized square footage. In Plantation’s uniform housing stock, we see consistent opportunities: original floor plans with formal living rooms that no one uses, or oversized garages in post-1980 builds. The constraint is always HVHZ-compliant opening protection. We specify ECO Window Systems and ES Windows products with current Miami-Dade NOA numbers, verified before the quote.

ADU Site Prep & Utilities
Plantation’s flat terrain and high water table over the Biscayne Aquifer make slab-on-grade the universal foundation type. On open Plantation Acres lots, site drainage planning is critical. A concrete pump truck on soft turf after rain is a stalled draw schedule and a failed footing inspection. We verify equipment access routes before we quote. Long material hauls across open lots change the logistics cost. We put that in the written scope.

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.
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AfterTrusted Brands We Service in Plantation
We source across fifty-plus vetted brands, and for Plantation’s HVHZ requirements, we stock and specify products with current Florida Product Approval or Miami-Dade NOA documentation. That includes ES Windows and ECO Window Systems for impact-rated openings, and CWS products where the project spec calls for them. We do not quote a brand and then substitute at delivery. The product in your written quote is the product on your job. Our South Florida warehouse keeps common HVHZ-compliant materials on hand, so we are not waiting on a shipment from Orlando while your slab cures.
Common Home Additions & ADU Problems We See in Plantation Homes

- Septic and well setbacks misidentified on Plantation Acres lots. A hand sketch without the exact drainfield location leads to a redesign after permit pull. We pull the as-built or order a new survey before we quote.
- Garage conversions treated as cosmetic jobs. The existing slab may need a new subfloor. New sleeping rooms need egress and impact-rated openings. We inspect the structure and document what is there before we write the price.
- Equipment access unverified on open lots. A concrete pump truck on soft turf after rain stalls the job. We walk the access route and note the ground conditions in the scope.
- Non-HVHZ products specified by out-of-area contractors. Plantation sits in Florida’s strictest wind-resistance zone alongside Miami-Dade. Every window, door, and roofing product needs current Florida Product Approval. We verify every number before the quote.
Pricing for Home Additions & ADU in Plantation, FL
We put the number in writing before anyone picks up a tool. That is Clause 1 of The Haven Standard. Here is what home additions and ADU work costs in Plantation’s market:
| Service | Typical Range in Plantation |
|---|---|
| Home Addition | $45,000-$130,000 |
| ADU Construction | $90,000-$220,000 |
| Garage Conversion | $30,000-$80,000 |
What moves the number: septic and well setback complexity on Plantation Acres lots, equipment access and haul distance on open properties, HVHZ product specifications, and whether the existing slab and structure can be retained or must be modified. Every quote is flat with a written scope. No change proceeds without a signed change order. That discipline has kept our projects within a few percent of the agreed price across 4,000-plus jobs. Bring a competitor’s written estimate and we will review it line by line at no charge. Call (754) 254-7676 for your free estimate.
We Also Serve Cities Near Plantation

Our crews work across Broward County, including Home Additions & ADU in Plantation and neighboring Fort Lauderdale, Margate, Pompano Beach, and Coral Springs. The same HVHZ rules apply throughout. The same documentation standards. The same written price before work starts.
Serving Plantation, FL - Our Local Coverage Area
We’re based in the Plantation 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 Plantation

Yes, detached ADUs are feasible on Plantation Acres lots with septic and well systems, but setbacks are measured from the drainfield and wellhead under Broward County environmental health review rather than from a municipal sewer easement. We verify the exact drainfield location from the as-built or a new survey before we draw plans. Call (754) 254-7676 to schedule your free estimate and we will confirm your lot’s specific constraints.
Yes. Broward County shares Florida’s strictest HVHZ designation with Miami-Dade, and every addition, conversion, or ADU must comply. That means impact-rated opening protection on all windows and doors, and current Florida Product Approval or Miami-Dade NOA numbers on every product. We verify every number before the quote. Call (754) 254-7676 for a written estimate with compliant specifications.
Often yes. The existing slab-on-grade floor in 1960s-1980s Plantation homes was not poured to living-space standards and may need a new subfloor to meet code for a habitable ADU. We inspect the slab condition, test for moisture transmission, and document what is required before we write the price. Call (754) 254-7676 for a free estimate and slab assessment.
We walk the access route and verify ground conditions before we quote. Soft turf after rain can stall a concrete pump truck and trigger a failed footing inspection on open Plantation Acres lots. Long hauls across open property change the logistics cost, and we put that in the written scope. Call (754) 254-7676 and we will assess your lot’s access.
Plantation Acres properties often trigger county environmental health review for septic and well setbacks, while eastern subdivisions fall under city zoning with tighter side-yard setbacks. A room addition can clear zoning on paper yet still fail inspection if the HVAC condenser pad is not repositioned before sign-off. We verify the permit path and all setback distances before we quote. Call (754) 254-7676 for a free estimate with the correct jurisdiction identified.
Ready to build? Call (754) 254-7676 to schedule your free estimate. Your written price, scope, and warranty arrive before any work starts. That is The Haven Standard. That is Rowan Construction Group.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Plantation and Broward County since 2007.







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