Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Home Additions & ADU Across North Palm Beach
A typical room addition in North Palm Beach runs $45,000-$130,000, while a full detached ADU runs $90,000-$220,000, with most projects taking 4-8 months from permit to final inspection. We serve North Palm Beach from our Miami office, with crews working locally and dispatch coordinated for the Village’s independent inspection schedule. Call (561) 475-3903 to schedule your free estimate.
North Palm Beach is different from every other city we work in Palm Beach County. The Village incorporated in 1956 and built out almost entirely within two decades, which means the housing stock is remarkably uniform - and remarkably old. Every project we take on touches a 50-65-year-old CBS ranch home, a canal-front property with salt-air exposure, or a master-planned neighborhood with its own architectural review board. That concentration of age and specific local governance is why a contractor who knows North Palm Beach’s building department, its inspectors, and its common hidden conditions will save you months and thousands in mid-job surprises.
Why Rowan Construction Group West Palm Beach Is North Palm Beach’s Preferred Home Additions & ADU Company
We’ve delivered over 4,000 projects since 2007, every one with a written price before work started and a documented photo record when the crew left. In North Palm Beach specifically, our familiarity with the Village’s independent building department means we submit plans to the right authority the first time - not Palm Beach County, where a rejected submittal can cost you three weeks.
Our crews are background-checked and uniformed, and a live person answers calls 24/7. Under the 365-Day Done Right Promise backed by The Haven Standard, if it is not done right, we make it right - the guarantee is printed on every page and backed by a terms page, not an asterisk. We also offer a Free Second Opinion on any written estimate: bring a competitor’s quote and we will review it line by line at no charge.
Grant Rowan, who leads our operations, has built the company’s discipline around Clause 1 of the Haven Standard - the written price before any work starts - and the signed change order protocol that has kept our projects within a few percent of the agreed cost across every trade we offer.
Our Home Additions & ADU Services in North Palm Beach
Room Additions
Room additions are the most common project we quote in North Palm Beach, typically $45,000-$130,000 depending on square footage, foundation type, and whether the existing 1960s CBS structure needs wind-mitigation upgrades to meet current HVHZ requirements. Many homes off Anchorage Drive and around the Village’s interior canal grid have original flat or low-slope built-up roofs with inadequate tie-downs; we assess the existing roof-to-wall connection before we price the addition, because upgrading it is not optional under Village inspection. Our written quote includes the structural assessment, the HVHZ-compliant impact-rated window package, and the finished interior with your choice of KraftMaid or Wellborn cabinetry and Cambria or Caesarstone countertops.
New Detached ADU
A new detached ADU in North Palm Beach runs $90,000-$220,000 and requires navigating both the Village’s independent building department and, for many master-planned neighborhoods, the HOA architectural review board’s setback, material, and roof-pitch rules. We have seen variances and corrections add weeks before the first rough-in when a contractor skips the HOA sequence. Our process includes a preliminary HOA compliance check before we submit to the Village, and our written scope documents both the ADU construction and the site work - utilities, drainage, and for canal-front lots, any FEMA flood-zone elevation requirements that dictate finished-floor height.
Garage Conversion ADU
Garage conversion ADUs are the entry point for many North Palm Beach homeowners, typically $30,000-$80,000, but they carry a specific risk in this market: the 1960s CBS walls often have undersized or missing lintels above the garage door opening and any side windows. When the Village inspector opens the wall for the window replacement permit that is part of every garage conversion, a failed opening inspection triggers a mid-job change order. We price the lintel assessment into our initial quote, not as a surprise. The conversion includes Kohler or Toto fixtures in the new bathroom suite, tile shower installation, and full HVAC integration with the existing home or a separate mini-split system.
Junior ADU & Interior Conversion
Junior ADUs - a self-contained unit within the existing footprint - work well in North Palm Beach’s smaller 1950s and 1960s ranch homes where lot coverage limits prevent detached construction. These projects still trigger HVHZ compliance on any new or modified openings, and we routinely find corrosion of embedded steel in the aging CBS walls due to salt-air exposure from the Intracoastal. Our structural assessment identifies these conditions before we write the price, and our documented photo record shows you exactly what we found and what we did about it.
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.
BeforeAfterTrusted Brands We Service in North Palm Beach
We source across fifty-plus vetted brands, giving the written quote honest numbers rather than inflated ones. For North Palm Beach additions and ADUs, we regularly specify KraftMaid and Wellborn cabinets, Cambria and Caesarstone countertops, GAF and Owens Corning roofing systems, and Kohler and Toto fixtures. For clients interested in modular or prefabricated ADU components, we have worked with Plant Prefab and Tuff Shed units where the project timeline and site conditions support it. We do not markup material; our allowance schedule is transparent, and substitutions are documented in writing with signed change orders if your selection affects the price.
Common Home Additions & ADU Problems We See in North Palm Beach Homes
- Missing lintels in 1960s CBS walls. The original construction in North Palm Beach’s ranch-home neighborhoods often skipped steel or concrete lintels above window and door openings. Once stucco is opened for an addition or conversion, the Village inspector will flag it. We engineer the correction into our initial scope, not as a mid-job surprise.
- Assuming Palm Beach County handles permits. North Palm Beach has its own building department, and submitting to the County means a rejected submittal and a stalled draw schedule. We file directly with the Village and know their plan review and inspection sequences.
- HOA architectural review skipped on master-planned lots. Many North Palm Beach neighborhoods enforce setback, material, and roof-pitch rules that are stricter than the Village code. Pulling a permit without HOA clearance adds weeks of corrections before rough-in.
- Flood elevation overlooked on canal-front properties. The high percentage of waterfront lots along the Intracoastal canal system means FEMA flood-zone compliance can dictate foundation and finished-floor elevation even for basic renovations. We check FEMA maps before we price the foundation work.
Pricing for Home Additions & ADU in North Palm Beach, FL
We put the number in writing before anyone picks up a tool. Below are the ranges we see in the North Palm Beach market, based on actual quoted projects over the past eighteen months. Every quote is a flat price with a written scope and written warranty; “call for a quote” is not an option here.
| Project Type | Price Range in North Palm Beach |
|---|---|
| Room Addition | $45,000-$130,000 |
| ADU Construction (new detached) | $90,000-$220,000 |
| Garage Conversion (ADU) | $30,000-$80,000 |
| Impact Window Installation (wet-wall opening with lintel correction) | $8,000-$25,000 |
| Kitchen Remodel inside new addition (KraftMaid cabinets, Cambria countertop) | $14,000-$45,000 |
| Bathroom Remodel inside new ADU suite (Kohler fixtures, tile shower) | $9,000-$28,000 |
What moves a project within these ranges: square footage, foundation type (slab-on-grade versus stem wall for flood elevation), whether the existing structure needs wind-mitigation upgrades, and interior finish level. A 420-square-foot rear room addition on a 1964 CBS ranch off Anchorage Drive - the project we completed with the lintel correction and HVHZ impact-rated glazing - landed at the midpoint of the room addition range because of the structural work the Village inspector required once the wall was opened. No work proceeded on that correction until the change order was signed; the administrative discipline Haven acquired Rowan for is the reason the punch list cleared on the first inspection sign-off.
Call (561) 475-3903 for an exact quote on your project. Estimates are free, and we deliver a written price before any work starts - always.
We Also Serve Cities Near North Palm Beach
Our Home Additions & ADU crews work throughout northern Palm Beach County, including North Palm Beach, Palm Beach Gardens, Palm Beach, West Palm Beach, and Jupiter. Each municipality has its own permitting authority and inspection sequence; we file correctly the first time whether the job is in the Village of North Palm Beach, Palm Beach County unincorporated, or a city with its own building department.
Serving North Palm Beach, FL - Our Local Coverage Area
We’re based in the North Palm Beach 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 North Palm Beach
The Village of North Palm Beach has its own building department and processes permits and inspections independently of Palm Beach County. We file directly with the Village for every North Palm Beach project, because submitting to the County means a rejected submittal and a stalled schedule. Call (561) 475-3903 and we will confirm the correct permitting path for your specific address.
Often yes, specifically lintel corrections and wind-mitigation upgrades to meet current HVHZ requirements. The 1960s CBS walls in North Palm Beach frequently lack proper lintels above openings, and the Village inspector will flag this once stucco is removed. We engineer these corrections into our initial written quote, not as mid-job surprises. Call (561) 475-3903 for a free estimate that includes the structural assessment.
Many North Palm Beach neighborhoods enforce architectural review boards with rules on setback, material palette, roof pitch, and lot coverage that are stricter than Village code. We check HOA requirements before submitting to the building department; skipping this step has added weeks of corrections to projects we have reviewed for homeowners seeking a second opinion. Call (561) 475-3903 and we will verify your HOA’s specific requirements.
A garage conversion ADU in North Palm Beach typically runs $30,000-$80,000, while a new detached ADU runs $90,000-$220,000. The garage conversion avoids foundation and roofing costs but often requires lintel corrections and HVHZ window upgrades that the detached ADU faces as well. The right choice depends on your lot coverage, HOA rules, and whether you need to preserve garage parking. Call (561) 475-3903 for a line-by-line comparison on your property.
Frequently yes. The high percentage of canal-front lots in North Palm Beach falls within FEMA flood zones that dictate finished-floor elevation for new construction, including detached ADUs. The foundation type and height can add $15,000-$40,000 to a project if not identified early. We check FEMA maps and the Village’s floodplain administrator before we write the price. Call (561) 475-3903 for an estimate that includes flood compliance from the start.
Ready to price your project? Call (561) 475-3903 to schedule your free estimate. We will deliver a written flat price with a written scope and written warranty before any work starts - under Clause 1 of the Haven Standard, that is the whole point. Every visit includes a documented photo record as standard, not an upgrade, and our 365-Day Done Right Promise applies to every trade we offer.
Written by Grant Rowan, Owner at Rowan Construction Group, serving North Palm Beach since 2007.