Modern rear addition with floor-to-ceiling glass — home additions in Bay Harbor Islands, Florida. Architectural rendering.

Home Additions · Bay Harbor Islands, FL

Room to grow on a small island.

Second stories, rear extensions, and guest suites for West Island homes, engineered properly, cleared through town review, permitted, and built under daily supervision by a licensed South Florida general contractor.

Licensed & insured Lic. CGC1539072 Bay Harbor Islands · Miami-Dade County Hablamos español

Home Additions in Bay Harbor Islands

Room to grow on a finite island.

Families move to Bay Harbor Islands for the town itself — quiet streets, the walk to Ruth K. Broad Bay Harbor K-8, water at the end of the block — and then discover their 1950s West Island house has two bedrooms and one opinion about closet space. The addition is how you stay. A second story over the original footprint, a rear extension toward the canal, a garage turned guest suite: on a small island where single-family land is finite, building up or back usually beats moving out.

Additions here get looked at properly. Plans go through the Town of Bay Harbor Islands Building & Zoning Department, and additions and exterior changes are reviewed by the town's Design Review Board before permits issue. On a barrier island, FEMA's substantial-improvement rule matters too: when the value of the work approaches half the value of the house, flood-elevation requirements can reshape the whole project, so it is far better to run that math in design than to discover it in review. Add hurricane engineering for the new structure, and you want a contractor fluent in all three conversations.

PGX has been building additions in South Florida for over 20 years under license CGC1539072, and the ones that succeed are engineered before they are pretty: tie-beam upgrades, new footings where a second story lands, connections detailed so the old house and the new one behave as one structure. You get a fixed written scope, a schedule built around your family actually living there, and a supervisor on site every day watching the tie-in — the seam where additions are won or lost.

Covered terrace joining a modern rear addition — architectural rendering

Where we work in Bay Harbor Islands

West Island East Island Kane Concourse West Broadview Drive Bay Harbor Terrace East Bay Harbor Drive West Bay Harbor Drive Broad Causeway La Baia Alana Bay Harbor Pearl House The Well Bay Harbor Islands

Elsewhere in Bay Harbor Islands? Call us — if it's in Miami-Dade or Broward, we probably build there.

What's included

Ways to add on here.

Five proven paths to more room on the West Island, each engineered, town-reviewed, and built to read as original.

01

Up over the original footprint

A full upper floor over the original footprint, with tie-beam upgrades, reinforced footings, and stairs placed where the plan wants them.

02

Extending toward the canal

Living space extended toward the canal or bay with engineered structure and setbacks respected — the view finally invited inside.

03

Guest and in-law suites

Garage conversions and attached suites with their own baths, built for parents, long-stay guests, or the year both arrive at once.

04

Foundation and structural work

Footings, columns, and connections engineered so old structure and new addition carry load as one building, not two acquaintances.

05

Invisible tie-ins

Rooflines, stucco textures, and floor levels matched carefully enough that visitors cannot find where the original house ends.

Glass sliders and roofline of a new rear addition — architectural rendering

How we work

A remodel is a promise. We keep it in writing.

20+
Years building in South Florida
150+
Remodels and additions delivered
100%
Permitted and inspected work
1
Team accountable from estimate to warranty

AFixed scope, honest pricing

A detailed written scope before we start — so the number you sign is the number you pay, and changes are decisions, not surprises.

BA superintendent on site, daily

Your project is run by someone whose name you know, who answers the phone, and who walks the site every working day.

CBuilt to code, warrantied in writing

HVHZ-rated products, inspected phases, closed permits, and a written warranty when we hand back the keys.

How it goes

From first walk to final walk-through.

01

Walk-through & estimate

We visit, measure, listen, and come back with a real scope and a real number — not a teaser.

1–2 weeks
02

Design & permits

Drawings, engineering where needed, product approvals, and the permit package — filed and tracked by us.

4–10 weeks
03

Construction

Scheduled trades, daily supervision, weekly updates with photos, and inspections we prepare for and attend in person.

Per scope
04

Closeout & warranty

Punch list cleared, permits closed, documents handed over, warranty in writing. Then we leave it spotless.

1–2 weeks

FAQ

Straight answers.

Does a home addition need Design Review Board approval in Bay Harbor Islands?
Yes — additions are among the projects the town's Design Review Board reviews, along with new construction and exterior renovations. The board looks at how the addition fits the house and the street, so we design for that audience from the first sketch and prepare a complete submittal. It is an extra step compared to some municipalities, and it is also part of why the West Island still looks the way it does.
What is the FEMA substantial-improvement rule and will it affect my addition?
On a barrier island, when the cost of improvements approaches half of the structure's value, federal flood rules can require bringing the home toward current flood elevations, which changes the project fundamentally. Whether your addition triggers it depends on the home's structure value and the true scope of work. We run this math during design, in the open, because discovering it during permitting is how additions die.
Can my 1950s house support a second story?
Many can, with engineering: tie-beam upgrades, reinforced or new footings where the loads land, and a structural path designed from roof to ground. Some houses make it easy, some make it expensive, and a structural evaluation up front tells you which one you own. When a second story is not the sensible answer, a rear extension often is, and we will say so plainly.
How long does an addition take from idea to done?
Realistically, months of design, engineering, board review, and permitting before construction begins, then months of building; a year is a fair planning horizon for a substantial addition here, sometimes less for simpler scopes. Island logistics and inspection scheduling add friction that a good schedule absorbs. We give you the full timeline at contract, including the approval phases, not just the part with hammers.
Can we live in the house while you build the addition?
Often, yes. Second stories and rear extensions can frequently be built with the existing home sealed off behind dust barriers and temporary weather protection, with utilities interrupted only at planned, announced moments. The tie-in weeks are the loud ones, and we schedule them with you. Some full-structure projects do justify moving out for a stretch; if yours is one, we will tell you before you sign, not after.

Contact

Let's plan the addition

Tell us what the house is missing. We assess the structure, run the flood math, and give you an honest path forward, in English o en español.

Office
Miami, FL
Hours
Mon–Fri, 8:00–18:00
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