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 West Gate
Home additions and ADUs in West Gate typically run $45,000 to $130,000 for a room addition and $90,000 to $220,000 for a detached ADU, with most projects taking four to nine months depending on county inspection schedules. The biggest variable in West Gate isn’t the lumber package or the finishes. It’s what your 1960s CBS home reveals once we open the walls, and how Palm Beach County’s Building Division paces the permit and inspection process.
Barrett & Sons Construction has worked additions and ADUs throughout West Gate long enough to know that planning around unincorporated-county jurisdiction is half the job. Call (877) 610-1318 and we’ll walk the property with you, put scope and allowances in writing, and map a schedule that accounts for county inspection lead times before we touch a single wall.
Why Barrett & Sons Construction Is West Gate’s Preferred Home Additions & ADU Company
We’re the outfit where Tom Barrett’s sons run the crews and Tom himself signs every contract. Founded in 1998, we’ve spent nearly three decades doing additions and ADUs in Palm Beach County, and we know exactly how the county’s inspection territory affects a West Gate project. County inspectors cover a sprawling multi-community area, so a framing sign-off that might take a day inside West Palm Beach city limits can realistically take three or four extra days unincorporated. We pad our schedules for that from day one, so your project doesn’t stall with open walls waiting on a county inspector.
Every West Gate job gets a written change order before any scope change touches the work. Every eligible project gets permits pulled and inspections signed. And every completed job carries our 90-Day Done Right Promise in writing: if it’s not done right, one call brings Tom back. No fine print, no phone tag, no surprises.
Our Home Additions & ADU Services in West Gate
We handle the full range of Home Additions & ADU work across West Gate, from attached room additions to fully detached accessory dwelling units. Here’s what we do most often in this area.
Room Additions
Most room additions in West Gate extend the back or side of a mid-century CBS home. The scope usually triggers far more than framing and drywall: Florida Building Code requires roof-to-wall connection upgrades, impact-rated openings, and wind-load compliance at 160+ mph design pressure on structural alterations. We handle that, and we write every code requirement into the contract before work starts.
ADU Design & Permitting
Because West Gate sits in unincorporated Palm Beach County, ADU permitting runs through the county’s Building Division rather than a city hall. That changes timelines, fee structures, and inspector availability. We handle the drawings, the county submittal, the resubmittals if they come, and the inspection coordination. You don’t chase paperwork. We do.
Garage Conversion ADU
Converting a 1960s or 1970s West Gate garage into living space usually costs $30,000 to $80,000, depending on whether the existing slab passes, the electrical service needs upgrading, and whether the roof framing meets current wind-load standards. We walk the space first and tell you honestly whether conversion makes more sense than a new detached build.
Junior ADU & Interior Conversion
Junior ADUs, typically carved out of an existing bedroom wing or oversized utility room, are one of the fastest ways to add rentable or in-law space in West Gate. Because they often stay within the existing building envelope, they can avoid some of the heavier structural triggers, but they still go through the same county permitting process. We never skip that step. The permit inspector works for you, not for me, which is exactly why I like him.
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.
Trusted Brands We Service in West Gate
When your West Gate addition or ADU calls for new windows, doors, or impact-rated openings, we install products from Simonton, PGT, and CGI. These are brands with published specs and Florida product approvals you can look up yourself, not mystery units off a van. We can order what the project needs quickly, and because we coordinate deliveries around county inspection dates, materials don’t sit in the weather waiting on a sign-off.
Common Home Additions & ADU Problems We See in West Gate Homes
- Missing hurricane straps on pre-Andrew CBS framing. Homes built in the 1950s through 1970s in West Gate routinely lack the roof-to-wall tie-down hardware Florida Building Code now mandates. Open the wall for an addition, and the county will flag it. We find it, price it in writing, and fix it before the inspector arrives.
- Failed waterproofing at old flat-roof transitions. Many West Gate homes have flat or low-pitched original roof sections. When we tie a new addition into those transitions, we regularly find rotted top plates and compromised flashing from decades of wet-season thunderstorms. That’s an allowance item, written into the contract up front.
- Undersized electrical services. A 1960s CBS home with a 100-amp panel doesn’t have room for a new bedroom, bath, and mini-split. The addition often requires a service upgrade, and we include that in the written scope rather than springing it as a surprise invoice.
- County inspection delays stalling schedules. This one is West Gate-specific. Because county inspectors cover a huge unincorporated territory, a rough-in that might get next-day sign-off in West Palm Beach can take several extra days here. We build that padding into the schedule and notify you in writing if a delay ripples the draw schedule.
Pricing for Home Additions & ADU in West Gate, FL
Here’s what we’re seeing in the West Gate market right now. These are real working ranges, not online teaser numbers.
| Project Type | West Gate Price Range |
|---|---|
| Home Addition | $45,000 - $130,000 |
| ADU Construction | $90,000 - $220,000 |
| Garage Conversion | $30,000 - $80,000 |
What moves the number most in West Gate isn’t square footage. It’s what the county requires once the permit is pulled, and what the existing structure gives us to work with. If the existing flat-roof carport has pre-code decking and no straps, that’s a line item. If the panel can’t carry the new load, that’s another. We handle this by writing allowances into the contract before demo starts, and by issuing a written change order with a price for anything outside the allowance before we proceed. No change order, no surprise. Call (877) 610-1318 for a free estimate, and we’ll walk your West Gate property and price the job honestly.
We Also Serve Cities Near West Gate
While this page is focused on Home Additions & ADU in West Gate, our crews work regularly in West Palm Beach, Palm Beach, Riviera Beach, and Palm Springs. If you live just across the West Gate line, the same pricing structure, written change-order policy, and 90-Day Done Right Promise apply.
Serving West Gate, FL - Our Local Coverage Area
We’re based in the West Gate 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 West Gate
Plan for roughly three to five extra business days per inspection milestone. West Gate is unincorporated, so all sign-offs go through Palm Beach County’s Building Division, whose inspectors cover a multi-community territory, while West Palm Beach runs its own building department. We schedule West Gate projects with that padding built in from the first week, and we don’t count on next-day inspections the way a city-limit project often can. Call (877) 610-1318 and we’ll show you a sample inspection timeline for your specific addition.
Most often: missing hurricane straps at the wall-to-roof connection, pre-code roof decking fastening, and wood framing at openings that’s rotted from decades of South Florida humidity and storm-driven rain. All of it must be corrected to current Florida Building Code once the wall is open on a permitted project. We handle this by writing an allowance into the original contract specifically for hidden structural conditions, and any overage comes to you as a written change order with a price before we proceed. No allowance on paper, no clean way through it.
Not necessarily the whole house, but it will trigger a code review of the structure being converted and any portion of the home directly tied into it. If the county reviewer determines the existing roof-to-wall connections on the garage are non-compliant, those get corrected as part of the permitted scope. If the tie-in point to the main house creates a load path issue, that gets addressed too. We won’t know the exact trigger list until the county reviews the plans, which is why we write plan-review contingency into the scope. Call (877) 610-1318 for an honest walk-through before you commit to a conversion.
We watch the Palm Beach County radar closely from June through October and schedule pours for early morning windows before the afternoon cells build. If thunderstorms or saturated fill soils from repeated rain force a postponement, we notify you in writing and shift the pour to the next clear window. Saturated fill in West Gate is a real problem for slab and footer work, so we don’t pour on muddy, over-wet subgrade just to keep a schedule. The concrete sets wrong, and you live with it. We’d rather lose a day than pour a bad slab.
You should have in hand, before any structural work begins: a signed construction contract with full scope in writing, a county-issued building permit posted on the property, written allowances covering hidden-damage contingencies, and a signed change-order procedure that requires your approval in writing before any price or scope change proceeds. If a contractor in West Gate tells you permits are optional, call someone else. Barrett & Sons pulls permits and gets inspections signed on every eligible job, and every change arrives on paper before a single nail moves.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving West Gate and greater Palm Beach County.
Ready to talk about your West Gate addition or ADU? Call (877) 610-1318 today. We’ll walk the property, put the scope and allowances in writing, and give you a fixed price before anything gets opened up.