Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Home Additions & ADU Across Palm Beach Gardens
Home additions and ADU construction in Palm Beach Gardens typically run $45,000-$130,000 for room additions and $90,000-$220,000 for detached ADUs, with most projects taking 4-8 months from signed contract to final inspection. We’re Rowan Construction Group, and our crews work Palm Beach Gardens regularly - from the CBS homes off PGA Boulevard to the custom estates in Mirasol and Frenchman’s Creek. Dispatch and scheduling are coordinated from our Miami office, and we carry the full trade license and insurance required by Palm Beach County and the Florida Building Code. Call (561) 475-3903 to schedule your free estimate.
Why Rowan Construction Group West Palm Beach Is Palm Beach Gardens’s Preferred Home Additions & ADU Company
We’ve delivered additions and ADUs across Palm Beach Gardens since 2007, and the pattern we see is consistent: homeowners here research harder than most. They read the three-star reviews. They screenshot prices before calling. We put the number in writing before anyone picks up a tool - that’s Clause 1 of The Haven Standard, and it’s why our projects finish within a few percent of the agreed price across 4,000-plus jobs.
Our Home Additions & ADU team knows the local landscape. In BallenIsles, we’ve navigated ARC rejections on stucco finish and roofing tile color. In PGA National, we’ve sequenced architectural review submittals to avoid the monthly board-meeting bottleneck that idles unprepared contractors for weeks. Our background-checked, uniformed crews arrive with a documented photo record on every visit - included as standard, not an upgrade.
A live person answers our phones 24/7. The 365-Day Done Right Promise is printed on every page of our contract, backed by a terms page you can read, not an asterisk. And we offer a Free Second Opinion on any written estimate - bring a competitor’s quote and we’ll review it line by line at no charge.
Our Home Additions & ADU Services in Palm Beach Gardens

ADU Design & Permitting
Accessory Dwelling Units in Palm Beach Gardens face a dual gate: community ARC/ARB approval, then city permitting. In master-planned golf communities like Ibis and Frenchman’s Creek, the ARC meets monthly - miss the submission window and your permitted, contracted project sits idle for weeks. We run ARC submittals and city permit packages in parallel, not in series. The design phase includes engineered roof-to-wall connections for the High-Velocity Hurricane Zone, impact-rated openings, and a written allowance schedule for finishes so the price stays fixed when selections are made.

Garage Conversion ADU
Converting a garage to living space in Palm Beach Gardens runs $30,000-$80,000, with the wide range driven by whether the existing slab meets current code, whether the roof structure can accommodate insulation and HVAC, and whether the community ARC considers the change an exterior alteration. In BallenIsles, we’ve seen ARCs require impact-rated windows and doors that match the community’s architectural vocabulary - specifications that pass city inspection but fail community review if not pre-approved. We submit to the ARC first, every time.

New Detached ADU
Detached ADUs in Palm Beach Gardens - typically $90,000-$220,000 - require full foundation, utility trenching, and compliance with setback rules that vary by community. The city’s CBS housing stock from the 1970s-1990s often has electrical service panels that need upgrading before an ADU load is added. We identify this in the written scope, not during construction. Our documented photo record shows you the existing panel, the proposed service upgrade, and the finished trench before backfill.

Junior ADU & Interior Conversion
Junior ADUs - converted interior space with a separate entrance - are less common in Palm Beach Gardens’s large-lot golf communities than in denser markets, but we see them in the older CBS tracts off Military Trail where original floor plans suit partition. The work is interior-dominant, but even interior changes in deed-restricted communities may trigger ARC review if they affect exterior doors, windows, or rooflines. We verify ARC jurisdiction before the first drawing.

Second Story Additions
Second story additions are among our most frequent calls in Palm Beach Gardens, particularly in the 1980s-1990s CBS ranches where the original structure can support vertical expansion but needs engineered connections for hurricane loading. The Florida Building Code’s High-Velocity Hurricane Zone requirements govern every connection detail, and the community ARC governs every visible finish. We model the structural path in our written scope so the price includes engineering, not “allowance for structural if needed.”

Room Additions & Sunrooms
Single-story room additions and enclosed patios in Palm Beach Gardens must meet the same HVHZ standards as new construction. The daily UV, humidity, and salt air cycle - even 10-15 miles inland - degrades exposed wood and caulk on a compressed timeline. We specify composite or pressure-treated materials where wood meets exterior, and we document the fastening schedule in the permit package so inspection passes the first time.

What happens when you call
- 1
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 Palm Beach Gardens
Our written quotes pull from fifty-plus vetted brands, not a single supplier’s catalog. For Palm Beach Gardens additions and ADUs, we regularly specify KraftMaid and Wellborn cabinetry, Cambria and Caesarstone countertops, and Belgard and Techo-Bloc pavers where hardscaping connects to the new structure. For roofing and exterior finishes that must pass both city inspection and community ARC review, we source from GAF and Owens Corning. We stock no inventory - every order is project-specific, with lead times locked into the written schedule before contract signing. That discipline, acquired through Haven’s administrative system, is why we don’t promise dates we can’t meet.
Common Home Additions & ADU Problems We See in Palm Beach Gardens Homes

- Starting construction before ARC/ARB approval in deed-restricted communities. In PGA National and BallenIsles, contractors who pull city permits first discover they cannot legally begin work until the community board approves - and some boards meet monthly. We sequence ARC submittals ahead of permit application, running both in parallel only after ARC pre-approval is secured.
- Losing schedule to long-lead custom millwork and architectural glazing. High-end Palm Beach Gardens ADUs in Mirasol or Frenchman’s Creek often specify custom cabinetry, specialty ironwork, or architectural glass with 12-16 week lead times. If the scope and allowances aren’t locked in writing before ordering, the project idles at drywall waiting for finishes. We fix allowances at contract and order immediately upon permit approval.
- Impact-window specifications that pass city inspection but fail community architectural vocabulary. The Florida Building Code requires impact-rated openings in the HVHZ, but communities like Ibis may additionally restrict frame color, grid pattern, or visible hardware finish. We submit window schedules to the ARC before ordering, not after installation.
- Electrical service upgrades discovered mid-project. The 1970s-1990s CBS homes common in Palm Beach Gardens often carry 150-amp panels insufficient for an ADU or second-story addition. We verify service capacity during the estimate phase and include upgrade costs in the written price, not as a change order surprise.
Pricing for Home Additions & ADU in Palm Beach Gardens, FL
These are the ranges we write into quotes for Palm Beach Gardens projects. Every number is a flat price with a written scope and written warranty - “call for a quote” is not an option here.
| Service | Price Range in Palm Beach Gardens |
|---|---|
| Home Addition (room, second story, sunroom) | $45,000 - $130,000 |
| ADU Construction (new detached) | $90,000 - $220,000 |
| Garage Conversion ADU | $30,000 - $80,000 |
What moves the number: structural complexity (foundation type, roof tie-in), ARC/ARB revision cycles, impact-rated opening count, electrical service upgrade needs, and finish grade. In Mirasol, we built a 420 sq ft primary-suite addition where the ARC initially rejected our proposed stucco finish and roofing tile color; after resubmitting with the community’s Mediterranean palette - while the city permit package ran in parallel - we stayed ahead of the board’s next meeting and closed the rough-in on schedule. Our techs also coordinated the KraftMaid cabinetry and Cambria slab lead times so the punch list didn’t slip. Call (561) 475-3903 for an exact quote on your project - estimates are free.
We Also Serve Cities Near Palm Beach Gardens

Our crews work throughout northern Palm Beach County, including Palm Beach Gardens, North Palm Beach, Jupiter, West Palm Beach, and Palm Beach. ARC and permitting requirements vary by municipality and community - we maintain current familiarity with each jurisdiction’s submittal timelines and inspection protocols.
Serving Palm Beach Gardens, FL - Our Local Coverage Area
We’re based in the Palm Beach Gardens 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 Palm Beach Gardens

Yes - in both Frenchman’s Creek and PGA National, the community ARC must approve your design before city permitting begins. We submit to the ARC first, receive written pre-approval, then file the city permit package. Running them out of order costs weeks. Call (561) 475-3903 and we’ll walk you through the sequence for your specific community.
Custom cabinetry from KraftMaid or Wellborn typically runs 10-14 weeks; architectural glass or specialty ironwork can extend to 16 weeks. These lead times, not labor availability, set the project calendar. We lock allowances and place orders immediately upon permit approval so finishes arrive before they’re needed. Call (561) 475-3903 for a schedule on your specific selections.
Yes - BallenIsles, like all Palm Beach Gardens communities in the High-Velocity Hurricane Zone, requires impact-rated openings that meet Florida Building Code HVHZ standards. The community ARC may additionally specify frame color, grid pattern, or hardware finish. We submit the full window schedule to the ARC before ordering. Call (561) 475-3903 for a written quote with impact-rated selections included.
We structure draws tied to inspection milestones - foundation, framing/rough-in, drywall, final - with each release contingent on passed inspection and your sign-off on the documented photo record. No draw proceeds without your written approval and our crew’s evidence of completed work. The schedule is attached to the contract before construction begins. Call (561) 475-3903 to review a sample draw schedule.
Yes, but only after ARC approval is obtained - city permitting in Palm Beach Gardens requires ARC pre-approval in Ibis and all deed-restricted communities. A rejected design must be revised and resubmitted to the ARC, which may mean waiting for the next monthly meeting. We avoid this by pre-consulting the ARC’s published design guidelines before the first submittal. Call (561) 475-3903 and we’ll review your community’s specific requirements.
Ready to price your addition or ADU? Call (561) 475-3903 to schedule your free estimate. We’ll deliver a written price with a written scope before any work starts - that’s Clause 1 of The Haven Standard, and it’s been our practice since 2007.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Palm Beach Gardens since 2007.







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