What You Are Buying
South Flagler House is Related Ross's flagship on the West Palm Beach waterfront, two 28 story towers by Robert A.M. Stern Architects at 1355 South Flagler Drive. The residence categories run from 2,196 square foot two bedrooms to full floor penthouses above 10,000 square feet, every home with flow-through exposures and private elevator arrival. Our line by line study of the asking prices covers what each open listing costs. This guide covers how the purchase itself works.
Source: the developer's published materials and the building's open inventory, September 2026.
The Purchase Sequence
The path runs from gallery to reservation to contract, then deposits and delivery. A visit to the sales gallery establishes current availability, since open listings are the minimum of what is available. From there the developer's purchase agreement replaces the standard Florida resale contract, and deposits are staged against construction milestones rather than held to a single closing. The exact schedule is set at contract by the developer, which is why the first professional review of the agreement matters more here than in any resale.
Florida law gives preconstruction buyers a fifteen day rescission window on new condominium contracts, the one period in which the agreement can be unwound without negotiation. In practice, buyers read the declaration, budget and rules in that window or never. We treat those fifteen days as the real diligence period.
What the Contract Decides
Three decisions inside the contract outlast the closing. Title comes first. How the residence is held is cheapest to settle before signing, and our guide to taking title in Florida covers the structures. Second is the finish path. Tower residences deliver to the building standard, while full floor penthouses arrive as custom builds through a Related Ross affiliate contractor, a different product with its own timeline. Third, assignment and resale rights before closing, which are set by the developer's terms and worth understanding even by buyers who never intend to use them.
The Related Life, Priced In
Ownership enrolls each residence in The Related Life, the concierge and programming platform Related Ross operates across its buildings. It layers over roughly 50,000 square feet of private club floors: dining venues, wellness, an indoor pickleball court and the staff behind them. The platform is part of the carrying cost and part of the value. The budget delivered with the condominium documents shows exactly how it is funded, and it should be read in the rescission window with everything else.
Between Contract and Keys
The stretch between signing and the 2027 delivery is not idle time. Deposits step up on milestones, and finish selections lock on the construction calendar. The closing itself lands on the developer's notice rather than a negotiated date, usually within a defined window once the certificate of occupancy issues. Buyers financing the purchase should size the commitment for a closing that arrives on schedule, since preconstruction contracts rarely bend for a lender's timeline. Insurance, utilities and the homestead filing follow the keys.
The Alternatives Next Door
The decision rarely stands alone, because the street offers the whole spectrum. The Bristol is the completed alternative, finished residences with a recorded price history and no construction wait. Edgeworth, sharing a property line by the same developer, opens the earlier entry point from $5.5M with a 2029 horizon. South Flagler House sits between them: the shortest wait for a new Stern building, at the higher entry price. The county pipeline page lists every project.
- The Bristol, 1100 S Flagler · completed 2019 · $15.3M recorded median over the trailing year
- Edgeworth, 1155 S Flagler · delivers 2029 · from $5.5M per the developer
- South Flagler House, 1355 S Flagler · delivers 2027 · $8.55M to $70M on the open market
Positions are schematic, drawn in address order along the drive. Prices are the Bristol's trailing year recorded median, the developer's published Edgeworth entry, and the open South Flagler House listings, all as of September 2026.
Building facts, residence categories and delivery timing follow the developer's published materials as of September 2026 and are subject to change. Open inventory figures are MLS active listings on September 3, 2026. The fifteen day rescission period for new condominium purchases comes from Florida's condominium statute, described here at a general level. The developer's contract governs each purchase, and your attorney confirms every term, amount and date for your specific agreement. As real estate agents we coordinate with your counsel, and the developer pays our fee at this project.
This is buying-process guidance, not legal or investment advice.
South Flagler House published materials (southflaglerhouse.com) and the building's open inventory.
Florida's published condominium framework.
Palm Beach Luxury, the asking-ladder study and The Bristol sales history.
