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 Lighthouse Point
Home additions and ADU construction in Lighthouse Point typically run $45,000 to $130,000 for a room addition and $90,000 to $220,000 for a new detached ADU, with garage conversions landing between $30,000 and $80,000. The biggest variable here isn’t labor or lumber: it’s the seawall setback variance nearly every canal-front lot requires before a single footer gets poured. Tom Barrett and his crew know that process because they’ve walked Lighthouse Point’s 33064 finger canals enough times to quote it accurately the first time. If you’re planning an addition or ADU in Lighthouse Point, call (877) 610-1318 and we’ll put numbers on paper before anything moves.
Why Barrett & Sons Construction Is Lighthouse Point’s Preferred Home Additions & ADU Company
We’ve been building in Broward County since 1998, and our Home Additions & ADU team has learned Lighthouse Point’s code quirks the only way that works: job by job, permit by permit, variance by variance. Tom Barrett publishes his name, address, and license number. Look any of it up before you sign. That level of transparency isn’t common in this trade, and it’s one reason Lighthouse Point homeowners keep calling us back for second projects.
When we quote a garage conversion on a canal-front lot in the 33064, we already know the city will likely flag the rear setback overlap. That means our written estimate includes the variance application timeline up front, not as a surprise two months after demo. Our crew members carry the Barrett & Sons name and pass background checks, and a live person answers the phone 24/7. No voicemail boxes, no out-of-state call centers.
Our Home Additions & ADU Services in Lighthouse Point
ADU Design & Permitting
Lighthouse Point isn’t a fast-permit city, and it shouldn’t be. The canal-front lots platted in the 1950s and 1960s put the required 25-foot seawall setback directly against the rear yard setback on most properties, which means nearly every ground-level addition or ADU needs a variance before construction can legally begin. We handle that paperwork ourselves. We draw the plans, walk them through the Lighthouse Point building department, and stay on top of the variance hearing dates so you don’t have to. That’s the difference between a contractor who works in Lighthouse Point and one who just says he does.
Garage Conversion ADU
Garage conversions are the most common ADU route in Lighthouse Point for one simple reason: the footprint already exists, so you’re often only fighting the rear setback where the garage sits, not adding a new one. The catch is the slab. Many of those original 1960s and 1970s garage slabs sit only 18 to 24 inches above the seasonal water table. Before we rough in plumbing or electrical, we check for moisture intrusion and, where needed, bring in engineered fill and a vapor barrier. Skip that step and you’ll be chasing musty drywall and cupped flooring for years.
New Detached ADU
A new detached ADU in Lighthouse Point usually starts around $90,000 and can climb to $220,000 depending on finishes, square footage, and what the seawall setback forces you to adjust. On finger-canal lots, we’ve seen projects shift several feet inland to satisfy the rear setback overlap, which changes the foundation plan and sometimes the roofline. We spec hot-dipped galvanized hurricane straps and stainless fasteners throughout because salt air off the Intracoastal corrodes uncoated steel hardware faster here than even a few miles west in Pompano Beach or Deerfield Beach.
Junior ADU & Interior Conversion
A junior ADU converts existing interior space, a spare bedroom, a den, a large utility room, into a unit with its own entrance, kitchenette, and bath. In Lighthouse Point, where many homes are CBS construction from the 1960s and 1970s, these projects often trigger electrical panel upgrades at the same time. The original panels in this housing stock are frequently undersized for today’s loads, and current Broward County permit pull-and-replace rules won’t let us tie a new ADU circuit into a panel that’s already maxed out.
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 Lighthouse Point
We don’t put mystery materials in Lighthouse Point homes. On ADU kitchens and baths we regularly install Schluter waterproofing systems, Grohe fixtures, and Sterling tubs and shower bases, and on any ADU or addition roof we lean on GAF shingles and underlayment. These are brands you can look up, with published specs and warranties. When a Lighthouse Point customer calls about a leak under a new ADU shower or a roof issue after a summer squall, we know exactly what was installed and where to get replacement parts fast.
Common Home Additions & ADU Problems We See in Lighthouse Point Homes
- Salt-air corrosion on steel connectors. Uncoated steel hurricane straps, hangers, and lintels pitted by direct Intracoastal exposure fail years earlier in Lighthouse Point than they would inland. We spec hot-dipped galvanized or stainless hardware on every addition and ADU, no exceptions.
- Seawall setback overlap stops construction after demo. Contractors unfamiliar with Lighthouse Point often start excavation assuming the rear setback is straightforward. It isn’t. When the 25-foot seawall setback collides with the rear yard setback, the city requires a variance, and that can stall a project for six to ten weeks after the old structure is already down.
- High water table wrecks slab pours. During the June through October wet season, the water table here often sits within 18 to 24 inches of grade. Pour a footer or slab without accounting for that and you’ll get heave, cracking, and moisture wicking through the new addition’s floor.
- Undersized electrical panels on older CBS homes. The original 1955 to 1985 housing stock in Lighthouse Point frequently has panels that can’t legally accept new ADU circuits under current rules. We catch this during estimating and put the upgrade cost in your written quote, not a change order after rough-in.
Pricing for Home Additions & ADU in Lighthouse Point, FL
| Project Type | Typical Lighthouse Point Range |
|---|---|
| Home Addition | $45,000 - $130,000 |
| ADU Construction (Detached) | $90,000 - $220,000 |
| Garage Conversion ADU | $30,000 - $80,000 |
Every quote from Barrett & Sons comes in writing, with allowances itemized and every price change issued as a written change order before work proceeds. That’s not a promise. That’s how we’ve run jobs since 1998. Call (877) 610-1318 for a free estimate with real Lighthouse Point numbers.
We Also Serve Cities Near Lighthouse Point
Our crews work throughout northeast Broward County, including Pompano Beach Highlands, Deerfield Beach, Pompano Beach, and Coconut Creek. If you’re a few minutes outside Lighthouse Point, call (877) 610-1318 and we’ll confirm service availability for your street.
Serving Lighthouse Point, FL - Our Local Coverage Area
We’re based in the Lighthouse Point 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 Lighthouse Point
On most Lighthouse Point finger-canal lots, yes. The 25-foot seawall setback and the rear yard setback overlap on many of the narrow, deep lots platted in the 1950s and 1960s, and the city requires a variance before we can pour footers. Plan on an extra six to ten weeks for that process. Call (877) 610-1318 and we’ll check your specific lot’s setback map during the free estimate.
Standard builder warranties rarely cover corrosion on uncoated steel hardware, which is why we spec hot-dipped galvanized or stainless straps, hangers, and fasteners on every Lighthouse Point project. It’s not a luxury upgrade here; it’s baseline. We’d rather spend a little more on the right hardware than argue about who’s responsible for a rusted hurricane strap in five years.
The water table in Lighthouse Point often sits within 18 to 24 inches of grade, especially during the wet season. Existing garage slabs from the 1960s and 1970s frequently sit right in that zone. Before rough-in, we evaluate the slab for moisture intrusion and, where needed, bring in engineered fill and a vapor barrier so the finished ADU floor doesn’t wick water. Call (877) 610-1318 for a site evaluation and a written quote.
Some of the newer developments in Lighthouse Point enforce architectural review on ADU exteriors, including roofline, siding material, and window style. We request the governing documents from you or the HOA before we finalize plans, and we adjust the drawings to match what the review board will actually approve. Skipping that step means rejected plans and another month of waiting.
Yes, in most cases. We sequence the work so the home stays sealed and livable through the framing and rough-in stages, and we schedule the big structural tie-ins for the shortest possible window. On canal-front lots we also stage materials carefully so nothing ends up in the water or against the seawall. Call (877) 610-1318 and we’ll walk you through a realistic week-by-week schedule before you commit.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Lighthouse Point and northeast Broward County since 1998.