Edgeworth, the Sequel to South Flagler House

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Edgeworth, the Sequel to South Flagler House

Nikko Karki
Nikko Karki August 8, 2026
Related Ross has answered the question of what follows South Flagler House, and the answer stands one property line away. Edgeworth, announced in March 2026 for 1155 South Flagler Drive, plans 168 residences in a second pair of 28 story towers. The flagship beside it has yet to hand over a single key. Green lighting a sequel before the premiere is a statement about the drive, and the sequel's terms show exactly what the developer learned from the first act.
Residences
168
Planned across two 28 story towers, nine of them penthouses
Reported Entry
From $2.5M
Against the flagship's $8.55M lowest open listing
Amenity SF
90,000+
The shared program, per the March 2026 release
Targeted Keys
2029
Groundbreaking planned for 2027

A Sequel Before the Premiere

Edgeworth arrived by press release on March 16, 2026, with an official site and a sales gallery run by Corcoran Sunshine. The filing line is simple to state. Kohn Pedersen Fox designs the two towers, March and White Design handles the interiors, and the 168 residences span one to five bedrooms, nine of them penthouses. Pricing was reported from $2.5M to $35.5M at launch. Construction is planned to start in 2027, with completion targeted for 2029.

The address carries the real news. The site sits at 1155 South Flagler Drive, sharing a property line with South Flagler House, the developer's 108 residence flagship that delivers in 2027. One company now controls back to back addresses on the city's most watched waterfront stretch, a position our study of the drive examines in full.

Rendering of the building, hero image
Edgeworth as rendered at launch, a second pair of 28 story towers planned for 1155 South Flagler Drive. Rendering: the developer.

What the Sequel Changes

A sequel gets to revise, and Edgeworth revises plenty. The architecture moves from Robert A.M. Stern's limestone classicism to Kohn Pedersen Fox, a modernist hand. The residence count grows from 108 to 168, so the towers slice into more and smaller homes. The private elevator, an arrival the flagship offers behind an $8.55M open floor, now reaches every home down to the $2.5M reported entry. And the shared amenity program steps up to a stated 90,000 plus square feet, against roughly 50,000 square feet of club floors next door.

The flagship and the sequel, as published
Both buildings per their developers' materials and open listings, August 2026. Published figures, not recorded sales
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South Flagler HouseEdgeworth
ArchitectRobert A.M. Stern ArchitectsKohn Pedersen Fox
Residences108168, including nine penthouses
Entry, as published$8.55M lowest open ask$2.5M reported at launch
Top of the book$70M duplex ask$35.5M reported
Delivery2027Targeted 2029
AmenitiesAbout 50,000 sf of club floorsMore than 90,000 sf stated

Sources: the developers' published materials as of August 2026 and the flagship's open listings

Two Published Price Books, One Property Line
Edgeworth's reported launch range beside the flagship's open asking lines. Both books are published prices, not recorded sales, and both move with each release.
Published price ranges at Edgeworth and South Flagler House$0M $10M $20M $30M $40M $50M $60M $70M EDGEWORTHreported at the March 2026 launch$35.5M · reported top$2.5M · reported entrySOUTH FLAGLER HOUSEopen asking lines, August 2026$70M · the duplex ask$8.55M · lowest open askPublished price ranges at Edgeworth and South Flagler House$0M$10M$20M$30M$40M$50M$60M$70MEDGEWORTHreported at launch$35.5M$2.5MSOUTH FLAGLER HOUSEopen asks, Sep 2026$70M$8.55M
  • Edgeworth · $35.5M · reported top
  • Edgeworth · $2.5M · reported entry
  • South Flagler House · $70M · the duplex ask
  • South Flagler House · $8.55M · lowest open ask

Sources: the developer's March 2026 launch materials for Edgeworth and South Flagler House open listings, August 2026.

The $2.5M Door

The lowest rung is the sharpest change. South Flagler House opens at $8.55M on its current asking ladder, so the flagship never meets the buyer with $3M to spend. Edgeworth does, at roughly a third of the neighboring entry, and its one bedroom lines mark the first time this developer has offered the drive at that scale. The reported range still climbs to $35.5M, so the sequel keeps a penthouse book while opening the door far wider at the bottom.

What Building Beside Your Flagship Signals

Developers rarely launch beside their own unfinished project, because the second book competes with the first. Doing it anyway signals confidence in the order at hand. A company does not queue 168 more residences behind 108 unsold ones, so the launch reads as public evidence of how the flagship's contract book stands. The pricing signals discipline too. Edgeworth undercuts the flagship's floor without touching its crown, which lets the pair cover the market from $2.5M to $70M with no rung contested between them.

Edgeworth towers rendering, second view
The two Kohn Pedersen Fox towers as filed, seen from the water side of South Flagler Drive. Rendering: Related Ross, via public filings.

What to Watch Next

Every figure above is a published number, and no closing has recorded at either address. Three markers will test the sequel. Watch whether the reported range holds through the first releases, since preconstruction books move with demand. Watch the 2027 groundbreaking date, the first hard promise on the calendar. And watch the flagship's first recorded closings after its 2027 delivery, because those deeds will price the ground the sequel stands on. The county pipeline page tracks all three.

South Flagler House rendering
South Flagler House, the flagship this project follows on the same drive. Rendering: Related Ross.

Bottom Line

Edgeworth is Related Ross revising its own hit while the original is still in previews. The revisions run deep: more residences, a modernist hand, a private elevator at every price, and an entry near a third of the flagship's open floor. The launch itself is the tell. A developer extends a street only when the first book has earned it.

For a buyer watching the drive: Ask us for both books side by side, the flagship's open lines and Edgeworth's releases as they open. The gap between the two entries is where the early decisions get made.

Edgeworth facts follow the developer's published materials as of March 2026, including the official site and the March 16, 2026 release, and are subject to change. The residence count of 168 is the developer's figure. Press coverage at launch reported 164, and the developer count governs here. Pricing of $2.5M to $35.5M is the reported launch range, not a recorded sale, and no closing has recorded at Edgeworth or South Flagler House. South Flagler House figures are the building's open asking lines in August 2026, per our asking-ladder study. Building details are the developer's published materials as of August 2026, subject to change.

This is market observation, not investment advice.

Edgeworth published materials (edgeworthwpb.com) and the Related Ross release of March 16, 2026.

South Flagler House open listings and published materials.

Palm Beach Luxury, the asking-ladder study and the South Flagler Drive study.

Nikko Karki
Written by

Nikko Karki

Nikko Karki has worked in real estate for nearly two decades, beginning on the developer side at Related Group in West Palm Beach, then through private real estate investments and cross-border M&A across the U.S., Europe, and Southeast Asia. He holds an M.Sc. in economics from the Helsinki School of Economics. He built Palm Beach Luxury to make his analysis available to anyone in the market, for free.
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Frequently Asked Questions
Edgeworth is a planned condominium project by Related Ross at 1155 South Flagler Drive, announced in March 2026. Two 28 story towers by Kohn Pedersen Fox hold 168 residences, including nine penthouses, with interiors by March and White Design. Completion is targeted for 2029.
Same developer, different product. Edgeworth trades Stern classicism for Kohn Pedersen Fox, holds 168 residences against 108, and opens at a reported $2.5M against the flagship's $8.55M lowest open listing. It delivers about two years later, with completion targeted for 2029 against 2027.
The developer has not stated its reasoning, so the honest answer is a read of the record. Launching 168 more residences beside an undelivered flagship signals confidence in the first building's contract book, and the $2.5M reported entry opens a price tier the flagship never served.
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