Modern rear addition with floor-to-ceiling glass — home additions in Coconut Grove, Florida. Architectural rendering.

Home Additions · Coconut Grove, FL

More house, same canopy.

Rear extensions, second stories, and garage conversions across Coconut Grove — engineered, permitted through the City of Miami, and supervised daily by PGX Builders Group, licensed general contractor CGC1539072.

Licensed & insured Lic. CGC1539072 Coconut Grove · Miami-Dade County Hablamos español

Home Additions in Coconut Grove

Adding on without giving up the Grove.

Coconut Grove lots come with two things owners refuse to lose: mature trees and the feel of the street. So instead of tearing down, owners in Center Grove, Natoma Manors, and the avenues off Tigertail add on — a rear extension toward the garden, a second story over the original footprint, a garage turned guest suite. Done well, an addition buys the square footage a growing household needs while the oaks, the setbacks, and the house the neighbors have known for decades stay put. Done badly, it reads as a box stapled to a bungalow. The difference is design and structure.

Additions are where the Grove's rulebook earns its reputation. Permits go through the City of Miami, and the NCD-3 conservation overlay governs setbacks, massing, and how much of the lot you may cover — while the city's tree ordinance protects the canopy your new footprint has to negotiate with. Any demolition tied to the project brings its own review before permits issue. Near the bayfront, FEMA flood maps and the substantial-improvement rule can shape what is worth building. None of this is a reason not to add on. It is a reason to hire someone fluent in it.

PGX approaches an addition as structural work first: foundations that respect root-protection zones, tie-beams and connections engineered for the High-Velocity Hurricane Zone, and a roofline that joins the original house instead of colliding with it. You get a fixed written scope, a supervisor on site every day, and an occupied-home plan that keeps the existing house livable, clean, and secure while the new one grows behind it. One team, estimate through warranty — the way 150+ South Florida remodels and additions have taught us to run it.

Covered terrace joining a modern rear addition — architectural rendering

Where we work in Coconut Grove

North Grove Center Grove South Grove Village West The Moorings Camp Biscayne The Anchorage Hughes Cove Entrada Estates Bay Heights Natoma Manors Main Highway

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

What's included

Additions we build in the Grove.

Extensions and conversions that add real square footage while keeping the lot, the trees, and the original house intact.

01

Extending around protected roots

Ground-floor additions toward the garden — family rooms, larger kitchens, primary suites — with foundations planned around protected root zones.

02

Growing up, not out

Full upper floors over the existing footprint, the Grove's answer when the lot and its trees leave nowhere to grow but up.

03

Garage and guest conversions

Garages and outbuildings converted into legal living space — guest suites, offices, studios — with the permits and insulation done right.

04

Suites with their own entry

Independent suites with their own bath and entry, built for parents, guests, or the long-stay visitors Miami reliably produces.

05

Tie-beams for HVHZ wind loads

Tie-beam upgrades, new footings, and connections engineered for HVHZ wind loads and inspected at every structural stage.

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.

What do the NCD-3 rules mean for my addition?
NCD-3 is the conservation overlay covering most of residential Coconut Grove, and it governs the things an addition lives or dies on: setbacks, massing, how much lot you can cover, and the trees your new footprint must respect. Demolition connected to the work is reviewed on its own track, tree survey included. We run a feasibility check against the overlay before design money gets spent, so you know what the lot allows first.
Can I add a second story to my Coconut Grove home?
Often, yes — and on tree-covered Grove lots, up is frequently the only direction with room. It starts with a structural evaluation: the existing foundation and walls must carry the new load, or be upgraded until they can, with everything engineered for the High-Velocity Hurricane Zone. The overlay's height and massing rules apply, and making the new floor look inevitable rather than added is a design problem we take seriously.
Will the trees on my lot limit where I can build?
They are the first thing we survey. Coconut Grove's canopy is protected by the City of Miami's tree ordinance, so the addition's footprint, foundations, and construction access all get planned around root-protection zones. When a conflict is real, removal requires a permit and replacement planting, and approval is never guaranteed. In practice, designing with the trees usually produces a better addition than the one the original sketch imagined.
How long does an addition take from first call to finished room?
Count the phases honestly: a few months for design and engineering, the permitting process through the City of Miami and any overlay review, then construction — typically several months to a year depending on whether you are extending back or going up. We give you a written schedule tied to the fixed scope and supervise daily to hold it. Anyone quoting dramatically faster is skipping a phase you will miss later.
Does the FEMA substantial-improvement rule affect additions near the bay?
It can. In mapped flood zones along the Grove's bayfront, federal rules compare the value of improvements against the value of the existing structure; cross the threshold and the whole building may need to be brought into compliance with current flood elevation requirements. That math can genuinely change what is worth building. We assess it early for any waterfront project, so the budget reflects reality from day one.

Contact

Let's find the square footage

Tell us what the house is missing. We will walk the lot, check the rules, and price it honestly — in English o en español. (786) 273-2524.

Office
Miami, FL
Hours
Mon–Fri, 8:00–18:00
Opens your email app — nothing is stored on this site.