If you've walked or driven along Ponce de Leon Boulevard past the AC Hotel by Marriott, you've seen the basin. A rectangle of water cut into the San Sebastian River, fenced off, mostly empty, sitting there the way a half-finished thought sits at the end of a sentence. For most of two decades, nobody outside a handful of developers and city planners could tell you what it was actually going to become.
This October, it becomes a marina. Sixty-four wet slips, boats up to 55 feet, walking distance from downtown's restaurants and shops. That part of the story has been covered. What hasn't been covered as clearly is what the basin was originally supposed to hold, and how much of that original plan simply never happened.
Before It Was a Marina, It Was a Gas Plant
The land under that basin has an industrial history most people driving past it would never guess. From roughly 1885 to the late 1950s, the site hosted a manufactured gas plant, the kind of facility that once supplied gas lighting to American cities before electricity took over. The byproduct of that process was coal tar, and it left the soil and sediment contaminated enough that the property became a federal Superfund site under EPA oversight.
The cleanup was a genuine multi-agency effort. The EPA, NOAA, the City of St. Augustine, and Atlanta Gas Light Company worked together to excavate the contaminated soil, and by September 2005 the site was clean enough for a groundbreaking ceremony. That ceremony wasn't just about capping an old industrial mess. It was billed as the start of something much larger: a mixed-use waterfront community called San Sebastian Harbor, led by San Sebastian Harbor Partners LLC alongside co-developers the Devlin Group and Grunthal & Schueth.
The 2005 Plan Promised Nine Things
The scope of that original vision is worth sitting with, because almost none of it exists today. The 2005 announcement described a finished project that would include 96 condominium units, 15 lofts, an 83-room upscale boutique hotel, a 10,000-square-foot spa, 24,000 square feet of boutique shops, and a 65-slip inland marina, all built on the cleaned-up 13-acre site along the San Sebastian River.
Here's how that promise stacks up against what actually exists on the ground twenty-one years later:
| Promised in 2005 | Status as of September 2026 |
|---|---|
| 96 condominium units | Never built |
| 15 lofts | Never built |
| 83-room boutique hotel | A hotel arrived next door, the AC Hotel by Marriott, built by the same ownership group now finishing the marina |
| 10,000 sq ft spa | Never built |
| 24,000 sq ft boutique shops | Never built |
| 65-slip inland marina | Opening October 2026 as the 64-slip Sebastian Harbor Marina |
The Great Recession hit not long after that groundbreaking, and the harbor basin sat unfinished for close to twenty years, a dug-out hole in one of Florida's most visited waterfront cities waiting for financing that didn't come.
The 2020 Rewrite That Quietly Went Nowhere
The project didn't stay frozen the entire time. In 2020, the City of St. Augustine reviewed a proposal to rezone the original 2004 planned unit development. The property owners at that point, Lake Mary-based SA Marina Holdings LLC and Clermont-based Seavin Inc, wanted to fold the San Sebastian Winery site on King Street into the development and rebalance the mix away from hotel rooms and retail toward residential space. SA Marina Holdings manager Abbas Abdulhussein told the city's Planning and Zoning Board that the goal was "less hotel rooms, less retail, less traffic," with more emphasis on housing and everyday livability downtown.
That 2020 version kept the 65 marina slips intact but added real ambition elsewhere: a 17,000-square-foot building fronting King Street with a 150-seat restaurant and a marketplace, a separate 150-seat restaurant right at the marina, apartments with ground-floor retail along the waterfront, and two parking structures to support it all. The plan called for a single ten-year construction phase, meant to start within three years of city approval.
None of that shows up in this fall's opening announcements. No King Street marketplace, no marina-side restaurant, no new apartment building. What's arriving in October is simpler than either the 2005 vision or the 2020 rewrite: slips, not restaurants.
What Actually Opens This Fall
The current phase is being finished under new management. Safe Passage Marina Management LLC, led by John Valdes and Nico Recore, has been selected to run day-to-day operations once the marina opens. Valdes brings decades of experience building and operating marinas, and his firm, John Valdes & Associates Inc., is overseeing the final construction push, including dredging the basin to an expected controlling depth of about 7 feet at mean low water, rebuilding floating docks, and reinforcing pilings against future storms. Recore, who spent five years as financial manager at English Landing Marina and six years running Marina Munch Waterside Food Truck Park, will handle daily operations as general manager.
The finished product will hold 64 wet slips for boats up to 55 feet, shore power, potable water, Wi-Fi, gated access with round-the-clock camera monitoring, modern restrooms and showers, laundry, pump-out stations, and a harbormaster office. It will take monthly and long-term tenants as well as transient boaters, but live-aboard dockage won't be permitted. Two waterfront apartments next to the docks will be available for short-term stays, a much smaller echo of the residential ambitions from both earlier plans.
The location does what the site was always meant to do: put boats within about two miles of the Atlantic Intracoastal Waterway and roughly five miles from the St. Augustine Inlet, with an easy walk into the historic district. St. Augustine has long been a favorite stop for boaters cruising America's Great Loop, and a protected inland basin gives them a sheltered alternative to anchoring out in open water.
Recore summed up the intent simply. "We want Sebastian Harbor Marina to be more than simply a place to dock a boat," he said, describing the location as a chance to introduce visiting boaters to the city the moment they step ashore.
What Changes on Your Walk Downtown
For anyone who lives near the historic district, the practical shift is smaller than the marina's twenty-year backstory might suggest. You'll start seeing boats where there used to be an empty basin. Transient cruisers docking for a night or a week will be walking the same stretch of Ponce de Leon Boulevard and Avenida Menendez that locals already use to reach restaurants and shops, adding new foot traffic to that corner of downtown without adding new buildings to look at. The two short-term apartments will bring a handful of overnight guests, not a new residential population.
What won't change, at least based on what's actually funded and under construction, is the bigger footprint once promised for that property. No spa. No 96 condos. No marketplace building on King Street. If you've wondered for years what was supposed to fill in around that basin, the honest answer is that most of it was supposed to happen and didn't. What's opening this fall is the piece that survived.
If you're curious about other properties along the San Sebastian River or elsewhere in St. Augustine's historic waterfront, the team at Noah Bailey Group knows this stretch of the coast well and can walk you through what's actually built, what's still on paper, and what that difference means for a given address. Reach out anytime you want a straight answer about a specific property or neighborhood.
