Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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Before
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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’re Rowan Construction Group, and our Home Additions & ADU team serves Plantation from our Miami-area dispatch office, with crews that know the difference between a 1968 CBS slab home off Broward Boulevard and a 1-acre Plantation Acres parcel with its own septic and well. Call (754) 714-6540 to schedule your free estimate. We’ll deliver a written price before anyone picks up a tool.
Why Rowan Construction Group Pompano Beach Is Plantation’s Preferred Home Additions & ADU Company
We’ve been working Broward County since 2007, and Plantation’s housing stock is unlike anywhere else in South Florida. The city was built almost entirely as a master-planned community from the late 1950s through the 1980s, leaving an unusually uniform collection of aging CBS homes that all hit the same compliance crisis at once: pre-Hurricane Andrew roof-to-wall connections without required hurricane straps, original flat or low-slope roofs at end of life, and windows that predate impact-resistance standards. Florida insurers are now dropping or repricing these pre-code homes en masse, so construction in Plantation is disproportionately driven by a forced, insurance-compliance retrofit wave. That pressure point is less concentrated in faster-developing or more mixed-vintage neighboring cities, and it means every addition or ADU we bid here involves code upgrades that a drive-by scope will miss.
Our crews are background-checked and uniformed; a live person answers calls 24/7. Every visit includes a documented photo record as standard, not an upgrade. And under The Haven Standard, no work proceeds on a change until the change order is signed - the administrative discipline that has kept our projects within a few percent of the agreed price across 4,000-plus jobs. Grant Rowan built this system, and we run it on every Plantation job.
Our Home Additions & ADU Services in Plantation
ADU Design & Permitting
Plantation’s original 1960s-1980s subdivisions sit on flat terrain with Broward County’s engineered canal network running through residential neighborhoods, keeping the water table as shallow as 2-4 feet below grade. That means ADU site prep, footer work, and underground utilities routinely require active dewatering - a line item we identify during design, not discover during excavation. We handle full architectural plans, structural engineering for hurricane-load compliance, and permit submission to Broward County. Our design team prices the dewatering contingency into the written scope upfront, so you’re not negotiating costs when the pumps are already running.
Garage Conversion ADU
This is where Plantation’s hidden terrazzo floors become the story. On a garage conversion ADU off NW 4th Street in the original 1960s section, our crew opened the slab for a new bathroom rough-in and found the original terrazzo still intact under the carpet - plus aluminum jalousie windows that had to go for current Broward County opening-protection requirements. We priced the terrazzo cutting and patching and the impact-rated window swap as written change orders before we touched anything, so the homeowner approved every dollar before demolition started. The finished Junior ADU passed inspection sign-off on the first rough-in walk, and the terrazzo patch in the bathroom blends cleanly with the restored bedroom floor. Garage conversions in Plantation run $30,000-$80,000, with terrazzo work and window upgrades priced separately in the contract.
New Detached ADU
Detached ADUs in Plantation face two realities: the standard city lot with county water and sewer, and the Plantation Acres lot with septic, well, and 1-plus acres of agricultural-heritage land. The permitting and site-work environments are entirely different. On city lots, we coordinate utility tie-ins with Broward County Water and Wastewater Services and plan for dewatering during footer pours. On Plantation Acres parcels, we navigate septic capacity certification, well-water testing, and often longer setback requirements due to the larger lot sizes. We price each path separately in the written quote - no assumptions, no surprises.
Junior ADU & Interior Conversion
Junior ADUs - a self-contained unit within the existing footprint - are popular in Plantation’s older neighborhoods where lot coverage limits rule out detached construction. These projects almost always involve opening walls for plumbing rough-in, electrical service upgrades, and HVAC zoning. In Plantation’s CBS homes, that means encountering original terrazzo floors, outdated wiring, and framing that may lack modern hurricane straps. We inspect before we quote, photograph what we find, and write allowances into the contract for the upgrades the permit will trigger.
Room Additions
Single-story room additions on Plantation’s 1960s-1980s homes require careful evaluation of the existing roof-to-wall connection. Pre-Hurricane Andrew construction commonly lacks the required hurricane straps, and the permit process will trigger structural upgrades once the walls are open. We bring an engineer to the initial site visit, price the strap installation and any beam reinforcement into the written quote, and flag the contingency before you sign. A typical room addition in Plantation runs $45,000-$130,000 depending on square footage, foundation type, and the structural work required.
Second Story Additions
Adding a second story to a Plantation CBS home is the most structurally demanding project we handle. The existing slab and wall system must be evaluated for load capacity, and pre-Andrew framing almost always requires reinforcement. We engineer for current Broward County wind-load requirements, pull permits with full structural documentation, and stage inspections at rough-in, framing, and final walk. The punch list is documented with photos at each stage, and sign-off requires inspector approval on every checkpoint.
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.
Before
AfterTrusted Brands We Service in Plantation
We source across fifty-plus vetted brands, giving the written quote honest numbers rather than inflated ones. For Plantation ADU and addition projects, that means Kohler fixtures and Moen valve assemblies for bathroom rough-ins, with finishes selected from lines that meet Broward County’s water-efficiency requirements. Countertops in kitchenette-equipped ADUs come from Silestone or Caesarstone, fabricated locally to measured templates so the cutouts fit the specified cooktop and sink on the first install. We don’t stock every SKU in a warehouse; we order to the job, with lead times built into the written schedule. That keeps material costs current and avoids the markup of carrying inventory we might not use.
Common Home Additions & ADU Problems We See in Plantation Homes
- Hidden terrazzo under carpet or tile. Nearly every slab-on-grade Plantation home from the 1960s-1980s is hiding original terrazzo floors beneath later flooring. Cutting terrazzo cleanly for plumbing rough-ins or HVAC trunk runs, then patching to match, is a specialty skill that can add several days and thousands of dollars to a scope that looked straightforward on the bid sheet.
- Pre-Andrew roof-to-wall connections without hurricane straps. Opening walls for an addition triggers permit inspection of the existing structure, and pre-Hurricane Andrew CBS homes commonly lack the required straps. This isn’t optional; it’s a code upgrade that must be engineered and installed before the new work can proceed.
- Aluminum jalousie or single-pane windows failing current opening-protection standards. Broward County requires impact-resistant windows or approved shutters on all new construction and substantial remodels. Replacing original windows across the existing home, not just the addition, is often a condition of permit approval.
- Shallow water table requiring active dewatering. Plantation’s flat topography and canal network keep groundwater 2-4 feet below grade. Footer pours, pool excavations, and even deep landscape grading for ADU site prep need pumps running continuously until the concrete cures. We price this as a line item, not a contingency.
Pricing for Home Additions & ADU in Plantation, FL
We put the number in writing before anyone picks up a tool. Here’s what Home Additions & ADU work costs in Plantation’s current market:
| Service | Price 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: square footage, structural requirements (especially hurricane straps and beam reinforcement on pre-Andrew homes), terrazzo cutting and patching, window upgrades to meet opening-protection codes, dewatering for footer work, and utility runs for septic or well systems in Plantation Acres. We inspect, photograph, and write every allowance into the contract. Under Clause 1 of The Haven Standard, the price is written before any work starts - always. Bring a competitor’s quote and we’ll review it line by line at no charge. Call (754) 714-6540 for your free estimate.
We Also Serve Cities Near Plantation
Our crews work throughout Broward County, including Home Additions & ADU in Plantation and neighboring Fort Lauderdale, Margate, Coconut Creek, and Pompano Beach. Each city has its own permitting timeline, housing vintage, and code enforcement style; we adjust the written scope and schedule accordingly.
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, almost certainly. Pre-Hurricane Andrew CBS homes in Plantation commonly lack required hurricane straps at the roof-to-wall connection, and the permit inspection will flag this once walls are opened. We bring an engineer to the initial site visit, identify the structural upgrades needed, and price them into the written contract before you sign. Any surprises we find after demolition are photographed, written as a change order, and approved by you before we proceed. Call (754) 714-6540 to schedule an inspection and written quote.
Yes - terrazzo cutting, patching, and color-matching is standard on our Plantation garage conversions. We use specialty subcontractors who work with the original aggregate mix to blend repairs with the restored floor. The work is priced as a written line item in the contract, not discovered mid-job. On a recent conversion off NW 4th Street, the terrazzo patch passed visual inspection and the homeowner kept the original floor throughout. Call (754) 714-6540 for an exact quote on your garage - estimates are free.
Probably. Plantation’s flat terrain and canal network keep the water table at 2-4 feet below grade, so most excavations deeper than a standard slab on grade require active pumping. We evaluate groundwater conditions during the design phase, price dewatering as a line item, and schedule around the June-November hurricane season when post-storm demand can stall material supply chains and inspection queues. Call (754) 714-6540 to review your specific site conditions.
Plantation Acres parcels have septic systems, private wells, and often agricultural-heritage outbuildings that change the permitting path entirely. Septic capacity must be certified for the additional bedroom count, well water tested for potability, and setbacks calculated for larger lot dimensions. Site prep may also involve removing or relocating existing structures. We price these as separate line items from city-lot ADUs and navigate the distinct permitting with Broward County Environmental Engineering. Call (754) 714-6540 to discuss your Plantation Acres project.
Broward County requires rough-in, framing, and final inspections on second-story additions, with structural engineering sign-off at each stage. We document every visit with photos, submit for inspection only when the work matches the approved plans, and walk the punch list with you before requesting final sign-off. Our 365-Day Done Right Promise covers anything that doesn’t meet the written scope - if it’s not done right, we make it right, backed by The Haven Standard, not a handshake. Call (754) 714-6540 to schedule your free estimate and review the full terms.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Plantation and Broward County since 2007.