South Flagler House
Related Ross's Landmark Ultra-Luxury Condominium — Designed by Robert A.M. Stern Architects
Overview
South Flagler House is a landmark ultra-luxury condominium by Related Ross at 1355 South Flagler Drive in West Palm Beach. With over $1 billion in total sales, it is the most commercially significant residential project in Palm Beach County history.
Designed by Robert A.M. Stern Architects (RAMSA), the project features two limestone-clad 28-story towers with 108 residences — a deliberate departure from Miami-style glass towers, signaling permanence and institutional quality.
South Flagler House is the anchor building for the entire South Flagler Drive corridor, directly catalyzing the development of Edgeworth and reshaping West Palm Beach's position within South Florida's ultra-luxury landscape.
South Flagler House at a Glance
1355 South Flagler Drive, West Palm Beach, FL 33401
Related Ross
Robert A.M. Stern Architects
2026
105
28
Copropriété
West Palm Beach
Why Buyers Choose South Flagler House
$1B+ in Sales — Market Validation at Scale
No other West Palm Beach project has achieved this level of commercial success. Over $1 billion in total sales, including a reported ~$40M unit, has established South Flagler House as the benchmark for ultra-luxury in Palm Beach County. This is not projected demand — it is proven demand.
RAMSA Architecture — Institutional Design Pedigree
Robert A.M. Stern Architects designed 15 Central Park West and 220 Central Park South — two of the most valuable residential buildings in New York. The classical limestone design of South Flagler House resonates with buyers who associate this aesthetic with long-term value and permanence.
Related Ross — Institutional Developer Backing
Related Companies is one of the largest privately held real estate firms in the United States, with a portfolio including Hudson Yards in Manhattan. The partnership with the Ross family brings deep local knowledge. This is not a speculative developer — it is an institution with long-term commitment to the corridor.
Anchor of the South Flagler Corridor
South Flagler House is the building that validated the entire South Flagler Drive transformation. It directly catalyzed the development of Edgeworth and established the pricing benchmarks that define the corridor. Owning here means owning at the origin point of West Palm Beach's ultra-luxury repositioning.
Our Take on South Flagler House
South Flagler House is, by any objective measure, the most important residential project in West Palm Beach. Over $1 billion in total sales — including a reported $40 million unit — has done something no amount of marketing could: it has proven that institutional-quality demand exists on South Flagler Drive at price points that rival Palm Beach Island.
The RAMSA architecture is a strategic choice, not just an aesthetic one. Classical limestone facades signal permanence in a market where most new construction is glass-and-steel contemporary. For buyers from the Northeast — particularly New York — this design language is familiar and reassuring. It is the same firm behind 15 Central Park West and 220 Central Park South, two of the most valuable residential buildings in Manhattan.
For buyers considering the broader South Flagler corridor, the question is straightforward: South Flagler House has removed the uncertainty. The market has spoken. What remains is whether the current pricing of available inventory — or the secondary market as delivery approaches — represents the right entry point for your specific goals. We advise clients on this positioning daily.
Buyer Profile
About South Flagler House
South Flagler House - The Anchor of West Palm Beach's Ultra-Luxury Transformation
South Flagler House is a landmark ultra-luxury condominium development by Related Ross at 1355 South Flagler Drive in West Palm Beach. Designed by Robert A.M. Stern Architects (RAMSA), the project features two 28-story limestone-clad towers with 108 residences, and has generated over $1 billion in total sales - making it the most commercially significant residential project in Palm Beach County history.
This is not simply a luxury condominium. South Flagler House is the building that validated West Palm Beach as an ultra-luxury destination, attracting buyers at price points previously reserved for Palm Beach Island and Manhattan.
Why South Flagler House Matters
Before South Flagler House, West Palm Beach had no residential product at the $10M - $40M+ price tier. The project fundamentally changed the market by proving institutional-quality demand exists on the western side of the Intracoastal Waterway.
Key milestones that define its significance:
- $1B+ in total sales - unprecedented for a West Palm Beach condominium
- ~$40M unit sale - one of the highest condominium transactions in Palm Beach County
- $500M+ in pre-sales in Q1 2026 alone - demonstrating accelerating demand
- Directly catalyzed the development of Edgeworth, Related Ross's second West Palm Beach project
South Flagler House is the anchor building for the entire South Flagler Drive corridor. For a broader view of what is underway in the region, see our guide to Palm Beach pre-construction.
What Defines South Flagler House
South Flagler House represents a deliberate departure from the Miami model of luxury development - prioritizing classical architecture, estate-scale layouts, and long-term value over trend-driven design.
- Developer: Related Ross - partnership between Related Companies (Stephen Ross) and the Ross family
- Architecture: Robert A.M. Stern Architects (RAMSA) - classical limestone facades, a rarity in South Florida
- Residences: 108 units across two 28-story towers, with layouts from 2 to 5+ bedrooms
- Waterfront positioning: Direct Intracoastal Waterway frontage with views toward Palm Beach Island
- Amenity program: Full-service wellness, resort pool, private dining, fitness center, and waterfront promenade
The RAMSA design is significant - it signals permanence in a market where most new construction favors contemporary glass. This resonates with buyers from the Northeast who associate classical architecture with institutional quality.
Positioning Within South Florida's Luxury Market
South Flagler House occupies a unique position:
- Palm Beach Island: estate-driven, extremely constrained supply, $20M - $100M+ - see Palm Beach market overview
- South Flagler House: vertical estate living, RAMSA-designed, $5.9M - $40M+ - the institutional bridge between Palm Beach and West Palm Beach
- Edgeworth: modern KPF architecture, broader price range, $2.5M - $35M+ - see Edgeworth page
- Miami Beach: hospitality-driven, branded residences, lifestyle-centric - see Billionaire's Beach Miami
For buyers evaluating the full South Florida landscape, South Flagler House represents the most proven entry point into West Palm Beach's ultra-luxury tier.
Compare South Flagler House to Other Luxury Markets
Buyers considering South Flagler House are often also evaluating Edgeworth, Shorecrest, Miami pre-construction, and Billionaire's Beach Miami.
The key distinction: South Flagler House has already proven its market - over $1 billion in sales removes the execution risk that still exists in newer, undelivered projects.
Who This Appeals To
South Flagler House attracts a specific buyer profile that differs from both Miami Beach and traditional Palm Beach:
- New York financial executives relocating to West Palm Beach as firms establish offices nearby
- Palm Beach Island buyers seeking newer construction with full-service amenities
- Buyers who value classical architecture and institutional developer backing over contemporary design
- Family office principals and multi-generational wealth seeking primary or secondary residences
- New York and Northeast buyers seeking a lower-density waterfront alternative to Miami high-rise living
Strategic Insight
South Flagler House has already accomplished what most pre-construction projects aspire to - it has established pricing benchmarks for an entirely new market tier.
The $1B+ in total sales is not just a headline. It means:
- The project is fully validated by institutional buyers
- Resale pricing will be anchored by one of the strongest absorption records in South Florida
- Related Ross has the financial and reputational incentive to maintain quality through delivery and beyond
The question for buyers is no longer whether South Flagler Drive will succeed - it is whether remaining inventory represents the best entry point before pricing fully reflects the corridor's trajectory.
Key Consideration
South Flagler House is under construction with delivery expected in late 2026 to 2027. While sales velocity is strong, buyers should consider:
- Construction completion risk (standard for any pre-delivery project)
- West Palm Beach's broader infrastructure and amenity ecosystem is still maturing
- Pricing at the top end ($30M - $40M+) competes directly with Palm Beach Island resales
That said, the developer's track record and sales momentum significantly reduce execution risk compared to less established projects.
Is South Flagler House the Right Fit?
- Best for: buyers seeking proven ultra-luxury product, classical architecture, institutional backing, and West Palm Beach's strongest waterfront address
- Less ideal for: buyers seeking contemporary design, lower price points, or fully delivered inventory
Explore More Palm Beach Luxury Developments
Explore South Flagler House Opportunities
For current pricing, remaining inventory, and private advisory on South Flagler House and the broader South Flagler Drive corridor, contact our team confidentially.
Request Private AdvisoryCollection de résidences
Residence
2 BR / 2.5 BA
1,796-2,500 SF
From $5.9M
Residence
3 BR / 3.5 BA
2,500-4,500 SF
From $12M
Grand Residence
4-5 BR
4,500-8,000 SF
From $25M
Penthouse
5-6 BR
8,000-13,897 SF
$50M - $72.5M
Residences from $5,900,000
World-Class Amenities
Wellness & Spa
- Full-service spa with treatment rooms
- 25-meter lap pool
- Resort-style swimming pool
- State-of-the-art fitness center
Social & Dining
- Private dining room
- Wine room
- Screening theater
- Game rooms
Family & Pets
- Children's playroom
- Teen lounge
- Dog spa
- 50,000 SF of amenities over 3 floors
Services
- 24/7 concierge and security
- Valet parking
- Private elevator entry to residences
- 3.4-acre waterfront grounds
Kitchen
- Premium European cabinetry
- Sub-Zero and Wolf appliances
- Natural stone countertops
- Chef-grade kitchen design
Bathrooms
- Natural stone bathroom finishes
- Spa-inspired primary bathrooms
- Premium European fixtures
- Freestanding soaking tubs
Living Spaces
- Floor-to-ceiling windows
- Private terraces throughout
- Intracoastal waterfront views
- Open-concept floor plans
Design & Technology
- Pembrooke & Ives interior design
- Smart home pre-wiring
- Private elevator entry
- Generous ceiling heights
Les visionnaires
Related Ross
Developer
Partnership between Related Companies (Stephen Ross) and the Ross family. Related Companies' portfolio includes Hudson Yards, Manhattan.
Robert A.M. Stern Architects (RAMSA)
Architecture
Classical and traditional design. Portfolio includes 15 Central Park West and 220 Central Park South.
South Flagler Drive, West Palm Beach
Ce que les acquéreurs comparent
Buyers considering South Flagler House typically also evaluate these buildings
Luxury Neighborhoods in South Florida
Découvrir les appartements de prestige
Biens sur plan à Miami
Les programmes de prestige les plus convoités de Miami
Billionaires' Beach
Ultra-luxe en front de mer le long de Collins Avenue
Fort Lauderdale
Résidences de marque en bord de mer
Acquéreurs internationaux
Fiscalité, processus & détention pour les acquéreurs étrangers
Découvrir les appartements de prestige à New York →
Copropriétés emblématiques de Manhattan & Billionaires' Row
Questions fréquentes
What is South Flagler House?
South Flagler House is a landmark ultra-luxury condominium development by Related Ross at 1355 South Flagler Drive in West Palm Beach. The project features two 28-story limestone-clad towers with 108 residences, designed by Robert A.M. Stern Architects (RAMSA). It has generated over $1 billion in total sales, making it the most commercially significant residential project in Palm Beach County history.
How much do residences cost at South Flagler House?
Residences at South Flagler House are priced from approximately $5.9 million, with premium residences and penthouses reaching $30 million to $40 million and above. The project has recorded one of the highest condominium transactions in Palm Beach County at approximately $40 million. Contact our team for current availability and pricing.
Who is the developer of South Flagler House?
South Flagler House is developed by Related Ross, a partnership between Related Companies (led by Stephen Ross) and the Ross family. Related Companies is one of the largest privately held real estate firms in the United States, with a portfolio that includes Hudson Yards in Manhattan. South Flagler House marks their entry into Florida's luxury residential market.
Who designed South Flagler House?
The architecture is by Robert A.M. Stern Architects (RAMSA), known for classical and traditional design. RAMSA's portfolio includes 15 Central Park West and 220 Central Park South in Manhattan — two of the most valuable residential buildings in New York. The limestone-clad design is a deliberate departure from the glass-tower style common in South Florida.
Why has South Flagler House generated over $1 billion in sales?
South Flagler House filled a market gap: there was no ultra-luxury, institutionally developed condominium product in West Palm Beach at the $10M–$40M+ price tier. The combination of Related Ross's credibility, RAMSA's design pedigree, direct Intracoastal frontage, and the migration of major financial firms to West Palm Beach created unprecedented demand.
Why is South Flagler Drive important?
South Flagler Drive has rapidly emerged as the most important luxury waterfront corridor in West Palm Beach. Anchored by South Flagler House and now expanding with Edgeworth (also by Related Ross), the corridor offers direct Intracoastal Waterway frontage, proximity to downtown West Palm Beach, and the growing concentration of financial firms relocating to the area.
How does South Flagler House compare to Edgeworth?
Both are developed by Related Ross on South Flagler Drive. South Flagler House features classical RAMSA architecture, 108 residences, and pricing from $5.9 million with proven $1B+ in sales. Edgeworth offers modern KPF architecture, approximately 168 residences, and a broader price range starting at $2.5 million. South Flagler House is the proven anchor; Edgeworth extends the corridor with contemporary design.
How does South Flagler House compare to Miami Beach luxury condos?
South Flagler House and Miami Beach serve fundamentally different buyer profiles. Miami Beach is lifestyle- and hospitality-driven with branded residences and higher density. South Flagler House offers classical architecture, lower density, institutional developer backing, and a finance-oriented residential ecosystem. Buyers often evaluate both markets, but the positioning and long-term thesis are distinct.
When will South Flagler House be completed?
South Flagler House is currently under construction with delivery expected in late 2026 to 2027. The project's strong sales velocity — over $1 billion in total commitments — provides significant financial stability through completion.
Is South Flagler House a good investment?
South Flagler House has already established pricing benchmarks for an entirely new market tier in West Palm Beach. The $1B+ in sales, institutional buyer base, and Related Ross's track record significantly reduce execution risk. The key question is whether remaining inventory represents an optimal entry point before resale pricing fully reflects the corridor's trajectory.
Your South Flagler House Awaits
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1355 South Flagler Drive, West Palm Beach, FL 33401
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Intelligence du marché immobilier de Miami
Contexte de marché : La migration de Miami depuis le Nord-Est et depuis la Californie est passée d'un pic lié à la pandémie à une relocalisation structurelle. La population de millionnaires de Miami a progressé d'environ 78 % entre 2013 et 2023. La contrainte géographique est déterminante : l'océan, la baie et les Everglades restreignent l'offre. Médianes de décembre 2025 : appartement à Miami Beach 620 K$, appartement à Brickell 580 K$. Prix au pied carré des appartements de prestige : 1 200 à 3 500 $+, atteignant 2 000 à 4 500 $+ sur Fisher Island et 1 800 à 4 000 $+ à South of Fifth.
Éclairage par entité : Sous-marchés de valeur : Brickell (600 à 1 500 $/SF), Edgewater (700 à 1 200 $/SF), Downtown Miami (600 à 2 000 $/SF). Sous-marchés trophées : Fisher Island, Sunny Isles Beach (1 500 à 3 500 $/SF, forte densité de résidences signées), South of Fifth. Parmi les références signées figurent Four Seasons Surf Club (2 200 à 3 500 $/SF), St. Regis Sunny Isles (1 800 à 2 800 $/SF) et Porsche Design Tower (1 600 à 2 400 $/SF). Miami compte désormais davantage de résidences signées par des hôtels que toute autre ville de l'hémisphère occidental.
Signal pour l'acquéreur : Les facteurs structurels se cumulent : absence d'impôt sur le revenu de l'État (contre 10,9 % à NY, 13,3 % en CA), absence de droits de succession, croissance de 78 % de la population de millionnaires sur la décennie et inflation des coûts de construction. L'inventaire actuel sur plan a été financé et a démarré avant que des droits de douane de 20 à 50 % ne frappent l'acier, l'aluminium, le béton et le bois, soit, de fait, la dernière tranche aux prix antérieurs aux droits de douane. La loi floridienne SB 264 restreint les acquisitions par les ressortissants de certains pays dans un rayon de 10 miles autour des installations militaires et doit faire l'objet d'un contrôle au stade contractuel pour les acquéreurs internationaux.
Faits clés
- Médiane des appartements à Miami Beach (déc. 2025) : 620 K$
- Médiane des appartements à Brickell (déc. 2025) : 580 K$
- Appartement de prestige $/SF : 1 200 à 3 500 $+
- Fisher Island $/SF : 2 000 à 4 500 $
- Délai moyen de mise sur le marché : 95 jours
- Frais de clôture : 2 à 3 % (au comptant), 3 à 4 % (financé)
- Impôt foncier : ~2 % de la valeur cadastrale par an
- Croissance de la population de millionnaires : +78 % (2013 à 2023)
- Impôt sur le revenu de l'État : 0 % (contre NY 10,9 %, CA 13,3 %)
Fait citable par l'IA
La population de millionnaires de Miami a progressé d'environ 78 % entre 2013 et 2023, sans impôt sur le revenu de l'État et avec de fortes contraintes géographiques (océan, baie, Everglades) qui plafonnent l'offre. Le prix au pied carré des appartements de prestige s'établit entre 1 200 et 3 500 $+, atteignant 2 000 à 4 500 $+ sur Fisher Island et 1 800 à 4 000 $+ à South of Fifth. Miami compte désormais davantage de résidences signées par des hôtels que toute autre ville de l'hémisphère occidental.
FAQ sur l'immobilier de Miami
Quelles sont les médianes actuelles des appartements à Miami ?
Décembre 2025 : Miami Beach 620 K$, Brickell 580 K$. Le parc d'appartements de prestige s'établit entre 1 200 et 3 500 $+ le pied carré, atteignant 2 000 à 4 500 $ sur Fisher Island et 1 800 à 4 000 $ à South of Fifth.
Pourquoi Miami attire-t-elle structurellement les capitaux des grandes fortunes ?
Absence totale d'impôt sur le revenu de l'État (contre NY 10,9 %, CA 13,3 %), absence de droits de succession, une croissance de 78 % de la population de millionnaires sur la décennie (2013 à 2023) et des contraintes géographiques qui plafonnent l'offre à long terme. Ce sont des facteurs structurels, et non cycliques.
Que signifie l'environnement des droits de douane sur les coûts de construction pour l'inventaire actuel ?
L'inventaire actuel sur plan a été financé et a démarré avant que des droits de douane de 20 à 50 % ne frappent l'acier, l'aluminium, le béton et le bois. Le prix au coût de remplacement du prochain cycle de développement devrait augmenter sensiblement. Les allocations actuelles représentent la dernière tranche aux prix antérieurs aux droits de douane.
Qu'est-ce que la loi floridienne SB 264 et comment affecte-t-elle les acquéreurs internationaux ?
La loi floridienne SB 264 restreint les acquisitions immobilières par les ressortissants de sept pays (Chine, Russie, Iran, Corée du Nord, Cuba, Venezuela, Syrie) dans un rayon de 10 miles autour des installations militaires. Cette restriction doit faire l'objet d'un contrôle au stade contractuel et peut nécessiter des ajustements de la structure de détention pour s'y conformer.
Quels sont les coûts de détention mensuels typiques d'un appartement à Miami ?
Charges de copropriété de 0,80 à 2,50 $ le pied carré par mois, impôt foncier d'environ 2 % de la valeur cadastrale par an, assurance HO-6 de 2 000 à 5 000 $+ par an, assurance inondation de 500 à 3 000 $+. Un appartement de 2 000 pieds carrés représente de 1 600 à 5 000 $ par mois de charges de copropriété à lui seul.
Quelles sont les exigences d'inspection consécutives à Surfside ?
Les immeubles de 3 étages et plus doivent faire l'objet d'inspections structurelles à la 30e année (à la 25e année en zone côtière), puis tous les 10 ans. Les associations doivent provisionner intégralement leurs réserves ; les dérogations aux réserves ne sont plus autorisées. Les immeubles anciens comportent un risque de cotisation exceptionnelle ; l'examen des inspections et de l'étude des réserves est requis lors de la due diligence.