Edgeworth, West Palm Beach’s Sequel to South Flagler House

New Developments

Edgeworth, West Palm Beach’s 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 184 residences in a second pair of 28 story towers. The flagship beside it has yet to hand over a single key. Launching a second project before the first delivers says the developer expects the drive to keep absorbing inventory, and the published terms have already been revised once since launch.
Residences
184
Across two 28 story towers, per the developer's site in September 2026
Current Entry
From $5.5M
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. Kohn Pedersen Fox designs the two towers, and March and White Design handles the interiors. The developer's site, as of September 2026, lists 184 residences in two to four bedrooms, priced from $5.5M. At the March launch the offering was reported as 168 residences in one to five bedrooms, from $2.5M to $35.5M. The offering was revised between March and September, and no sizes are published for the current plan. Construction is planned to start in 2027, with completion targeted for 2029.

The bigger news is the address. 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 184, so the towers slice into more and smaller homes. Private elevators, which the flagship offers only from its $8.55M open floor upward, reach every Edgeworth home. 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, September 2026. Published figures, not recorded sales
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South Flagler HouseEdgeworth
ArchitectRobert A.M. Stern ArchitectsKohn Pedersen Fox
Residences108184 per the developer's site
Entry, as published$8.55M lowest open asking price$5.5M on the developer's site
Top of the range$70M duplex asking priceNot published as of September 2026
Delivery2027Targeted 2029
AmenitiesAbout 50,000 sf of club floorsMore than 90,000 sf stated

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

The Entry Moved Between March and September
Edgeworth's published entry at launch and on the developer's site today, beside the flagship's lowest open listing. All three are published prices, not recorded sales.
Published entry prices at Edgeworth and South Flagler House$0M$2M$4M$6M$8M$10M$2.5M · March launch, reported$5.5M · developer's site, Sep 2026$8.55M · flagship's lowest open listingPublished entry prices at Edgeworth and South Flagler House$0M$4M$10M$2.5M$5.5M$8.55M
  • $2.5M · March launch, reported
  • $5.5M · developer's site, Sep 2026
  • $8.55M · flagship's lowest open listing

Sources: the developer's March 2026 launch materials, the developer's site as of September 2026, and South Flagler House open listings.

The $5.5M Entry

The entry price is still the sharpest difference between the neighbors. South Flagler House opens at $8.55M on its current listings, so the flagship never meets the buyer with $6M to spend. Edgeworth does, about $3M below the neighboring entry. The entry has moved since launch. At the March launch the project was reported from $2.5M, and the developer's site now lists the entry at $5.5M. Both figures are published prices, and the move between them is worth knowing before you visit the gallery.

What a Second Launch Next Door Signals

Developers rarely launch beside their own unfinished project, because the second project competes with the first for buyers. Doing it anyway signals confidence that the flagship is selling. A company does not queue 184 more residences behind 108 unsold ones. The pricing is harder to read than it was in March, because the site now publishes an entry and no ceiling. Edgeworth's entry opens below the flagship's, and the flagship holds the drive's highest open listing.

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 the published pricing, which has already moved once between March and September. The 2027 groundbreaking is the first hard promise on the calendar. And the flagship's first closings after its 2027 delivery will show what buyers actually pay one property line away. 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 formula before the first building delivers. The revisions run deep: more residences, a modernist design, a private elevator at every home, and an entry about $3M under the flagship's open floor. The published terms have moved once since launch, and the timing says as much as the terms.

For a buyer watching the drive: Ask us for both price lists side by side, the flagship's open listings and Edgeworth's releases as they open. The $3M gap between the two entries is the first decision to settle.

Edgeworth facts follow the developer's published materials and are subject to change. The current figures come from the official site as checked on September 3, 2026. The March figures come from the launch release of March 16, 2026. The residence count of 184 and the two to four bedroom range are the site's figures as of September 2026. The March materials described 168 residences in one to five bedrooms, including nine penthouses, and press coverage at launch reported 164. Current pricing follows the developer's site, which publishes an entry price and no top of range or sizes. The March launch range was a reported 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 listings on September 3, 2026, per our asking study.

This is market observation, not investment advice.

Edgeworth published materials (edgeworthwpb.com), site checked September 3, 2026, and the Related Ross launch release.

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 184 residences in two to four bedrooms, per the developer's site as of September 2026. March and White Design handles the interiors, and completion is targeted for 2029.
Same developer, different product. Edgeworth trades Stern classicism for Kohn Pedersen Fox, holds 184 residences against 108, and opens at $5.5M 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 said. What can be observed: launching 184 more residences beside an undelivered flagship signals confidence in the first building's sales, and the $5.5M entry opens a tier below the flagship's.
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