Harbor Towers Redevelopment
The Four Seasons developer has bought the building across from Mar-a-Lago
- West Palm Beach
- South Flagler Drive
- Not yet released
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- From
- Not released
- Per sq ft
- Private
- Interiors sq ft
- Not released
- Residences
- Not released
- Floors
- Not released
- Setting
- Waterfront
Premier research file. Updated October 15, 2026 from 12 sources. See them
Harbor Towers is a two-building, 61-unit 1986 condominium with a private marina on two acres at 3901 South Flagler Drive, directly across the lagoon from Mar-a-Lago. Fort Partners, Nadim Ashi's firm behind the Four Seasons Hotel and Residences at the Surf Club, now controls 60 of the 61 units after a September 2026 swap in which Related Ross sold it 21 units and took Fort's apartment parcels to the south. Fort has said it will terminate the condominium and redevelop. No plan, height, unit count or brand has been filed, and the site sits inside the city's six-month zoning pause on the South End.
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How the site was assembled
Related Ross and Fort Partners both started buying units in spring 2025, sued and counter-maneuvered over a board-adopted right of first refusal, and settled in October 2025. In September 2026 they traded: Related's 21 units went to Fort, and Fort's 25-unit apartment parcels at 3906 Washington Road and 3907 South Flagler went to Related, which already controls most of the neighboring Southbridge. Reported totals for Fort's purchases range from $79.7 million to $100 million. One unit, owned by the association, remains outside Fort's control.
Why buyers are watching
Fort Partners holds the Four Seasons residential rights in South Florida through the Surf Club and owns the Four Seasons Resort Palm Beach on the island, so the press has speculated about a Four Seasons-branded building here. Nothing supports that yet. What is certain is that the most experienced branded-residence developer in Miami now controls a two-acre South Flagler waterfront parcel facing Mar-a-Lago.
Harbor Towers Redevelopment location
The 3900 block of South Flagler sits between Maison d'Or and Southbridge on the South End, with the Southern Boulevard bridge a few hundred yards north. The private marina is the parcel's distinguishing asset; few South Flagler sites have one.
The full area guide: South Flagler Drive. Nearby: Arkona Court Tower, Edgeworth, Forté on Flagler, Maison d'Or
Harbor Towers Redevelopment at a glance
Compiled from the developer’s releases, city filings and press. Pricing and availability move; the private presentation carries the current release.
- Address
- 3901 S Flagler Dr, West Palm Beach, FL 33405
- Also searched as
- Harbor Towers and Marina Condominium, 3901 South Flagler Drive, Fort Partners West Palm Beach assemblage, Four Seasons Residences West Palm Beach (speculated brand, unconfirmed)
- Area
- South Flagler Drive
- Status
- Proposed (as of October 2026)
- Developer
- Fort Partners
- Brand
- Four Seasons, speculated by press; unconfirmed
- Residences
- Not announced. Existing property: two buildings, 61 units, built 1986, private marina, about 2 acres
- Pricing
- Not released. Comparable towers nearby from $5.5M
- Views
- Intracoastal Waterway, Mar-a-Lago and Palm Beach island directly across the lagoon, Private marina frontage
- Delivery
- Not announced; site assembled, no plans filed
Harbor Towers Redevelopment timeline and completion date
- November 2024Fort affiliate WPB S Flagler Owner LLC buys the 25-unit apartment complex at 3906 Washington Rd and 3907 S Flagler Dr (just south of Harbor Towers) from Philips International for $20Msource
- April 2025Fort begins closing on Harbor Towers units; association amends bylaws to add a right of first refusal; Related Ross affiliate Harbor Towers Acquisitions LLC sues the association and Fort affiliate in Palm Beach County Circuit Courtsource
- October 17, 2025Related Ross and Fort Partners settle the lawsuit out of court (terms undisclosed); Fort says it will proceed with a condo terminationsource
- February 2026CondoBlackBook: Fort and Related together hold 37 of 61 units at an average $1.85M; property 'slated for redevelopment'source
- July 15, 2026City Commission unanimously passes first reading of Ordinance 5177-26, a six-month zoning-in-progress for seven South Flagler / Washington Road properties including Harbor Towers; Zyscovich retained to study corridor zoningsource
- September 1, 2026Palm Beach Post: settlement lets Fort keep buying units 'to demolish the buildings for new construction'; Fort also owns 3906 Washington Rd and 3907 S Flaglersource
- September 19, 2026Property swap: Related Ross sells its 21 Harbor Towers units to a Fort affiliate for $20M and buys 3906 Washington Rd / 3907 S Flagler from Fort for $20M; Fort now holds 60 of 61 units ($79.7M since April 2025)source
- ExpectedNot announced; site assembled, no plans filed
Before you place a deposit
- There is no plan. Height, unit count, architect and brand are all unknown.
- The city's Ordinance 5177-26 pauses new rezonings in this corridor through about January 2027 while it studies new rules.
- A condominium termination must still be completed before demolition.
- The Four Seasons label is speculation drawn from Fort's portfolio, not a developer or brand statement.
Who it suits
- Buyers who would wait years for a branded South End building with a marina
- Harbor Towers owners and South End neighbors tracking the redevelopment
Questions
Questions buyers ask about Harbor Towers Redevelopment
Who owns Harbor Towers in West Palm Beach?
Fort Partners, through its affiliate WPB Harbor Towers Acquisition LLC, controls 60 of the 61 units as of the September 2026 property swap with Related Ross; the association owns the last. Fort has said it intends to terminate the condominium and redevelop the two-acre marina site.
Will Harbor Towers become a Four Seasons?
Nobody has said so. Fort Partners develops the Four Seasons residences at the Surf Club and owns the Four Seasons Resort Palm Beach, which is why the press has speculated, but no brand, plan or filing exists for 3901 South Flagler Drive.
When will Harbor Towers Redevelopment be completed?
Proposed as of 2026-10. Site assemblage, no filing. After a Sept 2026 property swap in which Related Ross sold its 21 Harbor Towers units to a Fort affiliate, Fort Partners holds 60 of the 61 units (the last is owned by the condo association), having spent $79.7M since April 2025 per TRD/Vizzda. Fort told TRD in Oct 2025 it would proceed with a condo termination; the Palm Beach Post (Sept 1, 2026) says Fort intends to demolish the buildings for new construction. No development application, site plan, rendering, unit count, architect or brand has been published as of Oct 15, 2026. The site sits inside the corridor covered by the city's July 2026 zoning-in-progress study (Ordinance 5177-26), which pauses new rezoning applications through about Jan 20, 2027. Completion: Not announced; site assembled, no plans filed.
Who is the developer of Harbor Towers Redevelopment?
Fort Partners.
Is Harbor Towers Redevelopment on the water?
Yes. Views take in Intracoastal Waterway, Mar-a-Lago and Palm Beach island directly across the lagoon, Private marina frontage.
Where is Harbor Towers Redevelopment located?
3901 S Flagler Dr, West Palm Beach, FL 33405, in South Flagler Drive (South Flagler Drive, South End).
Where these facts come fromShow sources
- Related Ross, Fort Partners swap West Palm Beach waterfront properties (paywalled; facts from search snippet)The Real Deal · September 21, 2026
- Fort Partners, Related Ross settle lawsuit over West Palm Beach condo buyout (TRD republished)The Real Deal via ccfj.net · October 26, 2025
- Fort Partners, Related Ross settle lawsuit over West Palm Beach condo buyout (original, paywalled)The Real Deal · October 21, 2025
- Two More Waterfront West Palm Condos Weigh BuyoutsPalm Beach Post via Boca Raton Tribune · September 1, 2026
- October 2025: Fort Lauderdale and Palm Beach Pre-Construction Condo News UpdateCondoBlackBook · October 2025
- February 2026: Fort Lauderdale and Palm Beach Pre-Construction Condo News UpdateCondoBlackBook · February 2026
- Related Ross Condo Lawsuit Over a West Palm Beach DevelopmentDiscover South Florida · May 14, 2026
- Billionaire Stephen Ross expected to complete condo buyout in West Palm BeachDiscover South Florida · May 14, 2026
- West Palm Beach Waterfront Condos Get $430M Buyout OfferDiscover South Florida · May 14, 2026
- Is the Four Seasons Coming to West Palm Beach, FL?BRG International · December 6, 2024
- West Palm Beach Considers Temporary Pause on Waterfront Development ApprovalsTheBuyerRebate.com · July 16, 2026
- Keep West Palm Beach West Palm Beach (Flagler corridor tracker)Protect the Palm · September 2026
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