Fast, Reliable Home Additions & ADU Across Palm Beach Gardens
A home addition or ADU in Palm Beach Gardens typically costs between $45,000 and $130,000, with garage conversions starting around $30,000 and full detached ADUs reaching $220,000. Most projects take 4 to 8 months depending on whether you’re inside a deed-restricted community with Architectural Review Board requirements. We’re Groundwork Construction Co. of South Florida, and we build across Palm Beach Gardens - from the established CBS homes of PGA National to the new construction corridors near Avenir - handling both the community approval layers and city permitting that this market demands. Call us at (844) 665-0162 for a free estimate.
Palm Beach Gardens isn’t like other Florida cities. The master-planned golf communities that define this area - PGA National, BallenIsles, Mirasol - each operate their own Architectural Review Boards with independent enforcement authority. We’ve seen out-of-area contractors learn the hard way that a valid city permit means nothing if the ARB hasn’t signed off first. That’s why our Home Additions & ADU team starts every Palm Beach Gardens project by mapping the full approval chain before we break ground.
Why Groundwork Construction Co. of South Florida Is Palm Beach Gardens’s Preferred Home Additions & ADU Company
We’ve worked inside Palm Beach Gardens’s gated communities long enough to know the material palettes, the design standards, and the review timelines that each major HOA expects. BallenIsles wants specific stucco textures and roof tile profiles. Mirasol has its own color restrictions and window specifications. We submit complete packages the first time because we’ve learned what each board looks for.
Our response time to Palm Beach Gardens is typically same-day for initial consultations, and we maintain active projects across both the eastern 33410 zip and the western 33418 corridor. That geographic spread means our crews understand the split personality of this market: the aging 1970s-90s CBS homes needing structural upgrades to meet current code, and the new luxury builds where homeowners want seamless aesthetic integration.
Raymond Estevez, who leads Groundwork, has directed additions and ADUs throughout Palm Beach County’s deed-restricted communities. Our reputation here rests on one thing: we don’t let homeowners discover approval gaps after construction starts. We’ve handled ARB submissions for dozens of Palm Beach Gardens properties, and we coordinate directly with HOA managers to prevent the tear-out orders that have burned less-experienced contractors.
Our Home Additions & ADU Services in Palm Beach Gardens
ADU Design & Permitting
Every ADU in Palm Beach Gardens starts with understanding which approval layer comes first. Inside PGA National, BallenIsles, or Mirasol, that means ARB submission before city permitting - a sequence that adds 6 to 8 weeks but is non-negotiable. Our design team prepares ARB-ready packages with material samples, elevation drawings, and landscape integration plans that match each community’s standards. For western 33418 properties near Avenir, we front-load SFWMD and grading permit applications because the shallow water table demands engineered fill and drainage plans before we can pour foundations. We handle both tracks.
Garage Conversion ADU
The 1970s-90s CBS homes in Palm Beach Gardens’s original golf communities often have attached garages with aging single-pane aluminum doors, minimal insulation, and slab foundations at grade - perfect candidates for conversion if you address the code gaps. In PGA National, we converted a 1970s CBS garage into a junior ADU, replacing an aging one-piece aluminum door with an impact-rated unit and adding a full bath. Our crew coordinated the ARB submission with the community’s design standards, then pulled city permits, completing the project at the high end of the garage conversion range - $78,000 - after working around the shallow water table with engineered fill. That project illustrates what garage conversions here actually involve: impact-rated openings, moisture barrier upgrades, and ARB-compliant exterior finishes.
New Detached ADU
Detached ADUs in Palm Beach Gardens face the strictest scrutiny. In deed-restricted communities, many HOAs prohibit detached structures entirely or limit them to specific zones behind the primary residence. Where they’re allowed, we build both traditional stick-frame structures and partner with prefab innovators including Abodu, Dvele, Mighty Buildings, and Boxabl for faster, factory-controlled construction. The western 33418 corridor’s engineered fill requirements make prefab appealing - we can prep the site while the unit is built off-site, compressing the schedule. Every detached ADU we build in Palm Beach Gardens uses impact-rated windows and doors from our roster of Andersen, Pella, Marvin, Milgard, Jeld-Wen, Simonton, PGT, or CGI - no exceptions, given the wind-load requirements.
Junior ADU & Interior Conversion
Junior ADUs - converted interior spaces with separate entrances but shared utilities - work well in Palm Beach Gardens’s larger 2000s-2010s luxury builds where homeowners want rental income without exterior construction. We focus on code-compliant egress, fire separation, and kitchenette integration using cabinetry from KraftMaid or Wellborn and countertops from Cambria, Silestone, or Caesarstone. Even interior conversions in gated communities typically need ARB notification for exterior door additions or window modifications, so we verify the full requirement set before starting.
Room Additions & Second Story Additions
Room additions in Palm Beach Gardens’s older CBS homes require careful structural analysis. The original slab foundations and load-bearing walls weren’t designed for second-story expansion, so we engineer reinforcements that meet current Florida Building Code standards. First-floor room additions are more straightforward but still demand attention to roof tie-ins, especially on barrel-tile roofs common in PGA National and surrounding communities. We match existing tile profiles and colors to satisfy ARB requirements, sourcing from manufacturers with proven coastal performance.
ADU Site Prep & Utilities
Site prep in western Palm Beach Gardens means water table management. The South Florida Water Management District controls drainage in this area, and new construction routinely needs SFWMD clearance plus local grading permits. We handle the engineering surveys, the fill specifications, and the utility extensions - water, sewer, electric - that transform a platted lot into a buildable ADU site. Skipping this step has flooded foundations in the 33418 corridor. We don’t skip steps.
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.
Trusted Brands We Service in Palm Beach Gardens
We don’t spec whatever’s in the warehouse. Our Palm Beach Gardens clients choose from 50+ recognized brands across every category, and we stock or quick-source the products that matter for coastal construction. For kitchen and bath components in ADU builds, that means Kohler fixtures and Moen hardware with proven corrosion resistance in humid, salt-air environments. For countertops, we offer Cambria, Silestone, and Caesarstone - three engineered quartz lines that handle Florida’s UV exposure without the maintenance demands of natural stone. Every brand we carry comes with its own material warranty, and we document those warranties in your project file for transfer if you sell.
Common Home Additions & ADU Problems We See in Palm Beach Gardens Homes
- ARB bypass leading to tear-out orders. Starting a garage conversion or addition in PGA National without ARB approval triggers mandatory restoration orders with independent HOA enforcement, even if the city permit is valid. We’ve been called in after out-of-area contractors faced this exact scenario.
- SFWMD permit gaps on western properties. Overlooking South Florida Water Management District and grading permits for ADUs in the 33418 corridor causes flooding when the shallow water table rises during wet season. Engineered fill isn’t optional here.
- Non-impact openings failing inspection. Choosing non-impact windows or doors for an addition fails Florida Building Code wind-load requirements, a standard tightened after Hurricanes Frances and Jeanne hit Palm Beach County in 2004. Every opening we install is impact-rated or meets the exposure category requirements.
- Foundation mismatch on older CBS homes. The slab foundations in 1970s-90s Palm Beach Gardens homes often lack the depth and reinforcement for second-story loads. We engineer pier-and-beam reinforcements or grade-beam additions rather than risking structural failure.
Pricing for Home Additions & ADU in Palm Beach Gardens, FL
Home additions and ADUs in Palm Beach Gardens follow market ranges calibrated to South Florida construction costs, with variance driven by community approval complexity, water table conditions, and finish selections.
| Project Type | Price Range |
|---|---|
| Garage Conversion | $30,000 - $80,000 |
| ADU Construction | $90,000 - $220,000 |
| Home Addition | $45,000 - $130,000 |
What moves you within these ranges? ARB complexity adds design and submission hours. Western 33418 sites with water table issues need engineered fill and drainage - typically $8,000-$15,000 in additional site work. Material selections span wide: a Kohler fixture package runs different from baseline alternatives, and Cambria countertops cost more than entry-level quartz. We quote line-item so you see where every dollar goes. Estimates are free. Call (844) 665-0162.
We Also Serve Cities Near Palm Beach Gardens
Our crews work throughout northern Palm Beach County, including Home Additions & ADU in Palm Beach Gardens and neighboring Lake Park, North Palm Beach, Riviera Beach, and The Acreage. Each area has its own permitting landscape - Riviera Beach’s municipal requirements differ from Palm Beach Gardens’s HOA layers, and The Acreage’s larger lots change setback calculations for detached ADUs. We know the differences.
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. ARB approval is mandatory before city permitting in BallenIsles, Mirasol, PGA National, and every major deed-restricted community in Palm Beach Gardens. The HOA has independent enforcement authority to issue tear-out orders for non-approved work regardless of permit status. We submit ARB packages as our first step on every gated-community project. Call (844) 665-0162 and we’ll verify your specific community’s requirements.
The shallow water table in western 33418, managed by South Florida Water Management District canals, requires engineered fill, grading permits, and SFWMD clearance before breaking ground on any new structure. Without this prep, foundations flood during wet season. We engineer drainage solutions as standard practice for western Palm Beach Gardens ADU sites. Call (844) 665-0162 for a site assessment.
All construction in Palm Beach Gardens must meet Florida Building Code wind-speed design requirements for its coastal exposure category, including impact-rated openings. This standard was strengthened after Hurricanes Frances and Jeanne in 2004. We specify impact-rated windows and doors from Andersen, Pella, Marvin, Milgard, Jeld-Wen, Simonton, PGT, or CGI on every project. Call (844) 665-0162 to review the product lines.
Yes, garage conversions are feasible in PGA National and similar communities if the ARB approves the exterior modification and the converted space meets Florida Building Code for residential occupancy. Our PGA National garage conversion with impact-rated door replacement and full bath addition reached $78,000, at the higher end due to water table engineering and ARB coordination. Call (844) 665-0162 to evaluate your specific garage.
ARB approval in Palm Beach Gardens’s major communities typically takes 4 to 6 weeks, with additional time for revision cycles if the initial submission doesn’t match community standards. Combined with city permitting, this adds 6 to 8 weeks to project start dates compared to non-HOA areas. We front-load this timeline in every proposal so you know realistic start dates. Call (844) 665-0162 for a schedule estimate.
Ready to expand your Palm Beach Gardens home? Whether you’re converting a garage in PGA National, building a detached ADU near Avenir, or adding a room to a 1980s CBS home, we’ll map the full approval path and build to spec. Call Groundwork Construction Co. of South Florida at (844) 665-0162 for your free estimate.
Written by Raymond Estevez, Owner at Groundwork Construction Co. of South Florida, serving Palm Beach Gardens and northern Palm Beach County.