Fast, Reliable Home Additions & ADU Across Plantation
Adding square footage to your Plantation home means navigating a specific set of county rules, an older housing stock, and a market where sloppy permitting will stall your project for months. A well-planned Home Additions & ADU project in this city typically runs $45,000-$130,000 for a room addition and $90,000-$220,000 for a detached ADU, and the difference between a smooth build and a nightmare is almost always in the paperwork. Our crews work across Plantation’s neighborhoods every week, from Jacaranda Lakes to Plantation Acres, and we know exactly what Broward County inspectors look for on framing, wind mitigation, and electrical service upgrades. If you are ready to talk numbers, call (844) 638-7249 for a free estimate and a written quote that accounts for every line item before we break ground.
Why Groundwork Construction Co. of Fort Myers Is Plantation’s Preferred Home Additions & ADU Company
Plantation was built largely between the late 1950s and mid-1980s as a master-planned community, which means whole neighborhoods of CBS construction are hitting the 40-to-65-year mark at the same time. We have done enough work in Plantation to know that a 1972 home off Broward Boulevard presents different structural challenges than a 1986 build near Central Park, and those differences drive the engineering load calculations, the tie-down specs, and ultimately the cost of your permit-ready plans. Our team is led by Derek Hollenbeck, and every crew member who shows up on your property is background-checked and in uniform. No unmarked vans, no guessing.
We answer calls with a live person, 24/7. Not a voicemail that disappears into an office manager’s inbox. When a Plantation homeowner calls at 9 p.m. with a question about their ADU slab pour scheduled for the next morning, someone picks up. Every project we build is backed by our 730-Day Done Right Promise: if it is not done right, we make it right. That is one of the longest workmanship guarantees in the residential construction space, and it applies to every foot of framing, every Simpson connector, and every window we install in your addition.
Our Home Additions & ADU Services in Plantation
ADU Design & Permitting
Plantation falls under Broward County’s building jurisdiction, which occupies a specific middle ground between Miami-Dade’s stricter High-Velocity Hurricane Zone rules and Palm Beach’s lighter requirements. That means your ADU plans must hit a precise wind-load threshold that out-of-area architects frequently miss. We handle the full design and permitting package in-house, including the structural calculations, the floodplain review if your lot is near the C-42 Canal or a water management canal, and the Broward County Environmental Protection Department submittals that stop-work orders hinge on. Derek Hollenbeck oversees every permit set before it goes to the city.
New Detached ADU
A detached ADU in Plantation is typically a 600-to-1,200-square-foot independent structure, and the biggest variable early on is the site work. Plantation sits on South Florida’s flat limestone shelf at roughly 8-10 feet above sea level, and the seasonally high water table makes soil bearing capacity a real factor during slab design. We coordinate compaction tests, formwork, and concrete pours around the daily thunderstorm cycle that hits every summer afternoon here. On a recent detached ADU in Jacaranda Lakes, we upgraded the original 1970s home’s corroded Federal Pacific panel to a 200A Square D QO with whole-house surge protection before tying in the new ADU’s subpanel, then installed Miami-Dade NOA-rated ES Windows on the ADU to meet Broward’s wind-borne debris region requirements. The framing and final inspections passed without a single correction notice.
Garage Conversion ADU
Garage conversions in Plantation are especially common in the older CBS subdivisions east of University Drive, where two-car garages built in the 1960s and 1970s often sit underutilized. A conversion typically runs $30,000-$80,000 depending on whether you need to trench new plumbing, upgrade the existing slab, or add impact-rated openings. Because attached garages share a wall and roofline with the main structure, Broward County inspectors will require the same wind-mitigation retrofit on the converted space that they would on a new addition. We budget for those connector upgrades from the start so they do not become a change order two weeks into framing.
Junior ADU & Interior Conversion
A Junior ADU carved out of existing interior square footage is the most cost-efficient path to adding a rentable or multi-generational living unit in Plantation’s planned-subdivision homes. These conversions often involve converting a large master suite, a finished basement, or an enclosed porch into a self-contained unit with its own entrance, kitchenette, and bathroom. The permitting path is generally lighter than a detached ADU, but Plantation still requires a separate address designation and compliance with the Florida Building Code’s egress, ventilation, and electrical-service requirements for a second dwelling unit on the same lot.
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.
Room Additions & Second Story Additions in Plantation
Plantation’s dominant housing stock is single-story and two-story CBS tract homes built in planned phases. That architectural uniformity means entire neighborhoods share the same construction vintage and are cycling into major renovation at the same time. A ground-level room addition here requires matching the existing CBS block-and-stucco construction, which means our masons have to tie new block into old block with epoxy-set rebar and then float a stucco finish that blends into the original 1978 texture without looking patched.
Second-story additions on these homes demand a full structural assessment. The original footers under a 1960s CBS home were not engineered to carry a second floor, and Broward County will not issue a permit without a stamped engineer’s report confirming the existing slab and walls can handle the additional dead and live loads. We include that assessment in every Plantation second-story quote because skipping it to make the number look lower just guarantees a failed permit review and a frustrated homeowner.
Trusted Brands We Use on Plantation Projects
Every addition we build in Plantation uses materials from manufacturers whose product approvals are already on file with Broward County’s building department. That shortens plan review because the reviewer sees a familiar NOA number instead of a generic spec they have to research. For hardscape tie-ins on ADU sites, we regularly install Belgard and Tremron pavers, and for fencing around the finished addition, ActiveYards aluminum systems hold up through hurricane seasons without warping or corroding. We do not stock generic off-brand substitutes because a blown-out window or a failed tie-down in a Cat 2 storm is not a warranty claim we ever want a Plantation homeowner to make.
Common Home Additions & ADU Problems We See in Plantation Homes
- Corroded original electrical panels. Homes built in Plantation between 1958 and the early 1980s frequently have Federal Pacific or Zinsco panels that will not pass a permit review for an addition. Inspectors flag them immediately, and the upgrade to a modern 200A service with whole-house surge protection becomes a prerequisite before the new circuit can be tied in.
- Underestimated wind-load uplift resistance on roof ties. Out-of-area contractors accustomed to Miami-Dade’s stricter HVHZ specs over-engineer submittals, while those coming from Palm Beach often under-document the tie-downs. Broward County inspectors check for specific Simpson connector patterns on room addition roof ties, and failed framing inspections mean expensive rework.
- Summer concrete pour washouts. Plantation’s June-through-October daily thunderstorms hit reliably in the early afternoon. Scheduling a slab pour without accounting for the weather cycle leads to stalled formwork, swollen lumber, and forms that warp enough to fail the elevation check during the next inspection.
- Floodplain review surprises near canals. Lots within a certain radius of the C-42 Canal or the neighborhood water management canals trigger a Broward County Environmental Protection Department hydraulic analysis. Missing that review in the permit package results in a stop-work order that can sit for weeks while the analysis gets expedited.
Pricing for Home Additions & ADU in Plantation, FL
We price every Plantation project with upfront, line-item quotes so you see exactly where the money goes before you sign anything. No vague allowances that balloon into change orders. The ranges below reflect what we see across Plantation’s neighborhoods today, accounting for Broward County permit fees, wind-mitigation engineering, and the cost of matching existing CBS construction.
| Project Type | Typical Price Range (Plantation) |
|---|---|
| Home Addition (room addition) | $45,000-$130,000 |
| ADU Construction (detached) | $90,000-$220,000 |
| Garage Conversion ADU | $30,000-$80,000 |
What drives the number higher? A second-story addition always costs more per square foot than a ground-level bump-out because of the structural engineering and the staging complexity. An ADU that requires a full electrical service upgrade on the main house, a new sewer lateral, or impact-rated windows throughout adds cost that a bare-bones plan might omit. We also offer 0% financing for 18 months and $1,000 off projects over $10,000, which makes a meaningful difference on a large-scale addition. Call (844) 638-7249 to schedule a free estimate and design consult. We will walk your property, talk through what is actually feasible, and hand you a written quote with no surprises baked in.
We Also Serve Cities Near Plantation
Our crews work throughout the region, including Immokalee, LaBelle, Marco Island, and Lehigh Acres. Each of those municipalities has its own permitting rhythm and its own stock of aging homes, and we bring the same upfront pricing and the same 730-Day Done Right Promise to every job. If you are across the county line and need a contractor who already knows the Broward submittal thresholds, call us.
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
Your Plantation ADU must meet Broward County’s wind-borne debris region requirements, which sit at a specific middle threshold: the county enforces uplift-resistance standards that are stricter than Palm Beach’s but do not require the full suite of HVHZ product approvals that Miami-Dade mandates. In practice, that means your windows and doors need Miami-Dade NOA-rated impact products or shutters, and your roof-to-wall connections must use approved Simpson or equivalent connectors with a documented load path, but the submittal package does not need the additional HVHZ notice-of-acceptance documentation. We prepare permit sets that hit exactly the Broward threshold without over-engineering the submittal, which saves time in plan review. Call (844) 638-7249 if you want to walk through the specific product specs for your lot.
Yes. Broward County will not issue a building permit for a vertical addition on an existing CBS home without a stamped engineer’s report confirming the original footers, slab, and block walls can carry the added dead load and live load of a second floor. Homes built in Plantation’s 1970s subdivision phases were almost never engineered with a future second story in mind. Our quotes include that structural assessment as a non-negotiable line item because skipping it just delays the permit and costs more in re-engineering later.
When you add square footage that includes impact-rated openings, a secondary water barrier on the roof, and engineered roof-to-wall connections, your wind-mitigation inspection report updates accordingly. Florida insurers apply specific discounts for each verified mitigation feature, and a Plantation homeowner who upgrades from an original 1970s CBS home with no documented tie-downs to a permitted addition with full Simpson connectors and NOA-rated windows can see a meaningful premium reduction. We provide the full documentation package - photos, product approval numbers, and the Uniform Mitigation Verification Inspection form - so your agent can apply every eligible credit.
Plan on 8-14 weeks for plan review on a detached ADU in Plantation, depending on the submittal queue and whether your lot triggers a floodplain review. Hurricane season, June through November, routinely causes inspection backlogs as the county prioritizes storm-related repairs, and a mid-August submittal will typically sit longer than a January submittal. We front-load every permit package with the exact product approvals and structural calculations the reviewer expects to see, which cuts down on resubmittal cycles and keeps your project moving during the bottleneck months.
Almost certainly yes if your home still has its original panel. The 2023 Florida Building Code requires a minimum 200-amp service for a property with a detached ADU, and most 1960s-through-1980s CBS homes in Plantation were built with 100A or 150A panels that are now 40-60 years old. If your existing panel is a Federal Pacific, Zinsco, or another recalled brand, the inspector will flag it immediately and you will not get a final on the ADU until the main service is upgraded. We include the panel and service upgrade in the initial ADU quote rather than treating it as a surprise change order, because in Plantation it is practically a given.
Call Groundwork Construction Co. for a Free Addition or ADU Estimate in Plantation
If you are planning a room addition, a second story, or a detached ADU in Plantation, start with a number you can trust. We do not give verbal ballparks that double after the permit comes back. We come to your property, assess the existing structure, run the numbers on the engineering and the county fees, and hand you a written, itemized quote. Our pricing is upfront, our financing makes large projects manageable, and our 730-Day Done Right Promise means the work stands up to Plantation’s climate years after the final inspection. Call (844) 638-7249 to schedule your free estimate and design consult. A live person answers, day or night.
Written by Derek Hollenbeck, Owner at Groundwork Construction Co., serving Plantation homeowners with full-scope construction, transparent pricing, and the 730-Day Done Right Promise.