South Flagler House West Palm Beach: Related Ross's RAMSA Towers, Buyer's Guide (2026)

When Stephen Ross moved his real estate company's headquarters to West Palm Beach and renamed it Related Ross, South Flagler House was the project that showed what the firm intended for the city: a limestone-clad, Robert A.M. Stern-designed pair of towers on the waterfront, priced at a level Palm Beach island buyers would recognize.

South Flagler House is two 28-story towers at 1355 South Flagler Drive, on 3.4 acres facing the Intracoastal and Palm Beach. It holds 105 residences of two to five bedrooms plus penthouses and guest suites, with interiors by Pembrooke & Ives. The building topped off in November 2025 and is scheduled to deliver in 2027. Pricing runs from $7.9 million to $73 million.

View the South Flagler House building page

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Project Snapshot

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Why This Building Matters

South Flagler House is Robert A.M. Stern Architects' first luxury residential high-rise in South Florida. RAMSA's limestone towers in New York, 15 Central Park West and 220 Central Park South among them, set records for that city, and the firm's arrival on Flagler Drive signaled that West Palm Beach was being built for the same buyer.

The market response bears that out. Related Ross reported more than $500 million in pre-construction sales at South Flagler House in the first quarter of 2026 alone, and the project secured a $600 million construction loan from Bank OZK and GoldenTree in June 2025, one of the largest condo construction loans in Florida.

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Location

The site is on the Intracoastal south of downtown West Palm Beach, directly across the water from Palm Beach.

The appeal is the Palm Beach view and the Palm Beach proximity at West Palm Beach prices, which, at this building, means a long way below the island's comparable estate values but well above anything else on Flagler Drive.

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The Residences

The 105 homes are split between the North and South towers. Published plans include two-bedrooms from roughly 1,800 square feet, three-bedrooms from 2,500 to 4,500 square feet, four- and five-bedrooms from 4,500 to 8,000 square feet, and penthouses from 8,000 to nearly 14,000 square feet (broker-reported ranges; confirm against current floor plans). The project launched with 108 residences in 2023 and was re-planned to 105, consistent with some units being combined.

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Amenities

About 50,000 square feet of private-club amenities, programmed under Related's "Related Life" service model:

• 25-meter lap pool and a resort pool with cabanas
• Spa with hydrotherapy
• Fitness center and Pilates studio
• Indoor pickleball court
• Golf and sports simulator
• Three dining concepts, private dining and a wine cellar
• Screening room
• Library and card room
• Children's and teen rooms with a STEM makerspace

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The Developer

Related Ross is the West Palm Beach-headquartered company of Stephen Ross, developer of Hudson Yards in New York and, in West Palm Beach, of the office towers and residential projects reshaping the downtown waterfront. South Flagler House is the first of its three current Flagler Drive condominiums, followed by Shorecrest and Edgeworth. Sales are led by Related Ross with Corcoran Sunshine.

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Status & Timeline

With the structure complete, delivery risk is low compared with projects that have not broken ground. No deposit schedule has been published; the sales team provides it with the contract.

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Pricing

Residences start at $7.9 million and run to $73 million, per Related Ross. At launch in 2023 the range was $5.9 million to $72.5 million, so entry pricing has risen about $2 million as inventory sold through.

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Who This Building Is For

The Palm Beach buyer who wants new construction. Palm Beach island has almost no new condominium product; this is the closest equivalent, with the island in view.

The relocating executive. Related Ross's office towers and the firms moving into them are a few minutes away; this is the residential half of that migration.

The multi-generational family. Four- and five-bedroom plans, guest suites and children's and teen amenities are rare in a waterfront high-rise.

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Frequently Asked Questions

Where is South Flagler House?

1355 South Flagler Drive, West Palm Beach, on the Intracoastal facing Palm Beach, about five minutes from the Royal Park Bridge to Worth Avenue.

How many residences are there?

105 residences across two 28-story towers, in two- to five-bedroom plans plus penthouses and guest suites.

What does it cost?

From $7.9 million to $73 million, per Related Ross.

When will it be completed?

The towers topped off in November 2025 and delivery is scheduled for 2027.

Who designed it?

Robert A.M. Stern Architects, with interiors by Pembrooke & Ives. It is RAMSA's first luxury residential high-rise in South Florida.

Is there a hotel?

No. South Flagler House is a private residential condominium with club-style amenities.

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How to Buy at South Flagler House

We work with the Related Ross and Corcoran Sunshine sales team on behalf of our buyers at no additional cost to you, and can tell you which plans remain in each tower and how pricing compares with Edgeworth and Shorecrest nearby.

Visit the South Flagler House building page for current availability, or contact us to arrange a private appointment.