In 2025, Terra Group and Fortune International Group paid $205 million for 3.9 acres of oceanfront land on Key Biscayne. Divide that by the 56 condominiums planned for the site, and the land alone costs $3.7 million per unit before a single wall goes up. That number is the whole story in miniature. It tells you what happens to price when a market goes without new inventory for eleven years, and it explains why a Key Biscayne condo doesn't behave like most other Miami condo comps a buyer might be tracking.
The site is the former Silver Sands Beach Resort at 301 Ocean Drive, a 56-room motel that had sat there since long before Key Biscayne became one of the county's tightest luxury enclaves. What replaces it will be the first new multifamily building to break ground on the island in more than a decade, and understanding why that gap exists tells a buyer more about this market than any median price chart will.
Two Towers in Twenty-Six Years
Walk the water side of Key Biscayne and the inventory of newer condo product is short enough to list from memory. Grand Bay Tower went up in 1999, just over 100 units on the oceanfront. Then nothing of scale until Oceana Key Biscayne delivered in 2015, 142 residences plus a dozen adjacent villas on the last undeveloped oceanfront parcel the island had left, the former Sonesta Hotel site. Since then, no new condominium tower has broken ground on Key Biscayne. Not because buyers stopped wanting one. Because the Village made it structurally difficult to build one.
Building | Delivered | Units | Site |
|---|---|---|---|
Grand Bay Tower | 1999 | ~100 | 430 Grand Bay Drive |
Oceana Key Biscayne | 2015 | 142 + 12 villas | Former Sonesta Hotel site |
Silver Sands project (Terra/Fortune) | Groundbreak expected late 2026 | 56 | 301 Ocean Drive |
Three buildings across twenty-seven years, on an island where oceanfront land essentially cannot be manufactured. That is not a normal supply curve.
The 2007 Vote Nobody Remembers
The reason traces back to the Sonesta redevelopment itself. Residents unhappy with how that project came together pushed a charter amendment in 2007, a provision the Village now files under Section 4.15, that requires certain zoning changes to go to a village-wide referendum rather than getting decided by the Village Council alone. It was written specifically to make the next Oceana harder to approve without direct voter input. It worked. For years, the practical effect was a density moratorium that steered nearly all new construction toward renovations of existing single-family homes and condo units, categories the ordinance exempted, while anything requiring a zoning change to build new multifamily product ran into a wall.
The Village's own code of ordinances still carries language limiting new development orders during the moratorium period to single-family homes, individual condo units, and public safety structures. Anything bigger needs a waiver from the Village Council after a public hearing, or it needs the kind of charter-level approval Section 4.15 was built to require.
How the Silver Sands Deal Got Built Anyway
Terra's David Martin spent months meeting with residents before the Village Council voted 7-0 in August 2024 to amend the zoning code and clear a path for the project. Whether that vote alone was legally sufficient, or whether Section 4.15 required a referendum, became an open legal question. A 2023 state law signed by Governor Ron DeSantis may have preempted the Village's referendum requirement entirely, though nobody had tested that in court. The Council proceeded on the ordinance vote rather than waiting to find out.
The challenge that followed came from a different angle. A neighboring condo owner, an LLC tied to the family of the late Sheldon Adelson, sued over the process, arguing the Village hadn't given proper legal notice before the hearing that approved the project. An appeals court denied that challenge in April 2025, clearing the way for demolition. Construction is now expected to start in late 2026.
What's actually being built:
- 56 residences on a 3.9-acre oceanfront site, roughly 150 feet tall, similar in scale to Oceana next door
- Architecture by Touzet Studio, landscaping by Raymond Jungles, with a design vocabulary drawn from Biscayne Bay's Stiltsville houses
- A $1.5 million developer contribution to the Village's Land Acquisition Trust, earmarked for infrastructure and traffic improvements
- A land basis of $3.7 million per planned unit, before construction costs, before finishes, before a sales gallery opens
That land basis is the number worth sitting with. Whatever these units eventually list for, the floor is set by an acquisition price nobody in this market has paid before.
Where the Money Goes When There's No New Condo
Ron Shuffield, president and CEO of Berkshire Hathaway HomeServices EWM Realty, presented his firm's first-quarter 2026 market analysis with a line from his college economics professor still in his head: "if the demand grows and supply shrinks, you're going to have higher prices." He was talking about the county broadly, where the median sold price of a single-family home rose from $650,000 in March 2024 to $695,000 by March 2026, but he named Key Biscayne specifically as one of the places where buyers priced out of new condo product are now buying lots instead, alongside Coral Gables and Pinecrest, to build from scratch.
Shuffield's own numbers point at the same pattern from a different angle. The county's $5 million-plus condo market averaged about five closed sales a year back in 2012. In the four months before his Q1 2026 presentation, it had already logged 22. Demand at the top of the market hasn't slowed. What's changed is where that demand lands when the oceanfront condo shelf hasn't restocked in a decade.
Oceana's own developer marketing, written years before Silver Sands broke ground, said the quiet part out loud: buyers with budgets up to $7 million who came looking for a new oceanfront condo on Key Biscayne often ended up shopping for a single-family lot instead, because the condo simply didn't exist yet. That's not a market preference. That's a buyer settling for the only available product.
What This Means If You're Buying Now
If you already own in Grand Bay Tower or Oceana, the drought is the reason resale values on those buildings have held. There is no third comparable tower competing for the same buyer, and there hasn't been one in eleven years. That scarcity doesn't disappear the moment Silver Sands breaks ground either. A single 56-unit building, priced against a $3.7 million-per-unit land cost, will not flood this market with inventory. It will most likely set a new price ceiling for the island's newest product and leave Grand Bay and Oceana as the value alternative for anyone who wants to be in an established building now rather than waiting years for delivery.
If you're weighing whether to buy an existing unit or wait for the new tower, the honest answer depends on your time horizon. Silver Sands won't have finished units to close on for years past its late 2026 groundbreak. Buyers who need to be on the island now are shopping a fixed set of two buildings. Buyers willing to wait are betting that a project with this land basis prices meaningfully above what Grand Bay or Oceana command today, which is a reasonable bet given the math, but not a fast one.
And the Village's appetite for direct voter control over growth hasn't gone away. Separately from Silver Sands, the Key Biscayne Neighbors Association spent this past spring collecting signatures and has already secured a spot on the November 2026 ballot for a referendum requiring voter approval on any infrastructure project over $50 million across a three-year cycle, the first Village-wide referendum since the 2020 general obligation bond. It's a different question than condo zoning, but it confirms the same instinct that produced Section 4.15 in the first place. On this island, big decisions about growth tend to go back to the residents, not just the Council. That instinct is exactly why the condo shelf sat empty for a decade, and why the next tower after Silver Sands, whenever it comes, will likely follow the same slow, deliberate path.
If you're trying to figure out whether that math favors buying now, waiting for Silver Sands, or looking at what a comparable lot costs on the island, Paulie Group can walk through the actual numbers on any of the three buildings, or the alternative of building new, and help you weigh the timeline against what you're trying to accomplish. Contact us.
