The 2028 Miami Condo Inventory Cliff Nobody Is Talking About

Two years ago, David Siddons told his clients that a single project on Brickell Key would reshape Miami’s luxury condo market. Today, The Residences at Mandarin Oriental, Miami is roughly 75% sold, pricing has climbed from about $2,000 to $2,700 per square foot, and several of the building’s best residence lines have all but disappeared from the market.

That track record matters, because the same analysis that called Mandarin Oriental two years in advance now points to a much bigger shift heading into 2028: a coming imbalance between ultra luxury condos built for end users and a wave of investor-driven inventory that is about to hit resale.  This is a breakdown of where Miami’s strongest luxury condo opportunities stand today, why certain buildings are outperforming the broader market, and what the David Siddons Group is forecasting through 2030.

Quick Answer: What Is the 2028 Miami Condo Inventory Cliff?

The 2028 inventory cliff refers to a projected surge in resale condo inventory across Brickell as investor-owned units from recently delivered buildings hit the market at the same time. Roughly 1,300 new units are scheduled for delivery in Brickell by 2028. Based on the historical pattern of about 25% of new units returning to resale after closing, that could add close to 350 resale listings to a market that currently has around 730 comparable units for sale, a potential 50% jump in competing inventory for mid-tier new construction product. Ultra luxury buildings built for primary residence end users, like Mandarin Oriental, are largely insulated from this because their inventory is already sold and their buyers are not investors chasing rental yield.

A Two-Year Track Record: Why This Analysis Carries Weight

In an earlier video, David Siddons identified Mandarin Oriental, Miami as one of the strongest new construction opportunities in the city, before the original hotel tower was even demolished. Since then:

• The South Tower has sold approximately 75% of its 227 units.
• Pricing has risen from roughly $2,000 to $2,200 per square foot at launch to approximately $2,700 per square foot today.
• David Siddons has personally sold 12 units at Mandarin Oriental over the past two years, more than any other broker in the city.
• Both top penthouses closed at $50 million each, and seven of the ten lower penthouses have sold.

This is not a retrospective for its own sake. It establishes the credibility behind the forecast that follows: a market call made in advance, tracked against real closings, and now being applied to the next four years.

Why Mandarin Oriental Is a Signal, Not an Outlier

What makes this project instructive is who is buying. According to the developer’s sales leadership, 70% of Mandarin Oriental buyers are US buyers purchasing as a primary residence, not as a rental investment. That is close to the opposite of the traditional Brickell buying pattern, where units are purchased to rent out and the building’s value lives and dies by rental demand. This end-user demand is being driven by a demographic shift: affluent buyers relocating from the Northeast and Midwest, many tied to firms like Citadel, which recently announced an additional 2,000,000 square feet of space in the area. These buyers are not speculating. They are relocating their primary residence and their capital.

Miami’s Shift to Luxury Micro-Markets

Miami’s ultra luxury buyers are no longer evaluating neighborhoods. They are evaluating pockets, tightly defined locations with irreplaceable land, resort-level amenities, and constrained supply. Brickell Key now competes directly with South of Fifth, Coconut Grove’s Bayshore Drive, Surfside, and Miami’s most exclusive waterfront communities, the same way Indian Creek Island and Gables Estates compete in the single-family market.

The characteristics shared by every luxury building that has succeeded in Miami, from Park Grove to Continuum to Apogee, are consistent: irreplaceable locations, limited supply, large floor plans, resort-scale amenities, respected developers, and genuine end-user demand.

What Is Left at Mandarin Oriental, Miami

South Tower

• The 01 line is effectively sold out, with only a few reservation-stage units remaining.
• The 02 line has just a handful of units left; one traded mid-negotiation during a recent client meeting.
• Both top penthouses ($50 million each) are sold. Seven of ten lower penthouses (nearly 6,000 square feet) are sold, with three remaining.
• Stack three (approximately 4,600 square feet) and stack two (approximately 4,000 square feet) are largely sold out.
• Remaining opportunity is concentrated in the 03 and 04 lines, starting around $7 million, with view corridors that clear most existing Brickell Key buildings, including The Courts, Carbonell, and Asia.
• 56 units remain across the tower as of this writing, moving quickly enough that entire stacks can sell out within weeks.

North Tower (Newly Released)

• 121 total residences, down from over 300 hotel rooms in the original building, spanning floors 19 through 31 with private residential elevators.
• Two-bedroom entry pricing starts around $4.5 million (approximately 1,550 square feet).
• Three- and four-bedroom residences range up to approximately 3,100 square feet.
• Current pricing runs meaningfully below the South Tower’s $2,700 per square foot, reflecting early-release pricing on a newly launched product.

How Mandarin Oriental Compares Across Miami

At $2,700 per square foot, Mandarin Oriental sits below several comparable ultra luxury benchmarks:

• Four Seasons, Brickell: approximately $2,500 per square foot (recently closed by David Siddons), up from roughly $2,000 per square foot previously, a 25% increase.
• Four Seasons, Coconut Grove: approximately $3,000 per square foot, with only 10 units remaining.
• Beachfront product including The Ritz-Carlton Residences Miami Beach, Five Park, Baccarat, Ocean Terrace, and The Perigon: $4,000 to $4,500+ per square foot.

Given that Mandarin Oriental was built on land the developer has owned since 1979, this pricing may not be replicable. The next site to break ground nearby is expected to launch at a higher price per square foot, likely becoming the most expensive new development on Brickell Key.

The 2028 Inventory Cliff, Explained

Not every building in this cycle is built the same way. A significant share of new Brickell construction is still designed around the rental investor, not the end user, the same model that has defined the neighborhood for years.

Here is the math behind the forecast:

1. Brickell currently has approximately 730 post-2010 luxury units for sale.
2. Roughly 1,300 new units are scheduled for delivery in Brickell by 2028.
3. Historically, approximately 25% of units in investor-oriented buildings return to the resale market shortly after closing, once the initial buyer has captured their gain or failed to secure rental returns at the level expected.
4. 25% of 1,300 is approximately 325 units, close to a 50% increase over current resale inventory in that segment.

If rental demand cannot absorb that supply, owners in these buildings could face significantly increased resale competition and softer pricing power starting in 2028. This risk sits almost entirely outside the ultra luxury, end-user segment represented by buildings like Mandarin Oriental, where 75% to 90% of top-tier inventory across Miami is already sold and buyers have no intention of reselling or renting.

The David Siddons Group Forecast Through 2030

Based on current absorption rates, land scarcity, and the widening gap between ultra luxury end-user demand and constrained new supply, the David Siddons Group forecasts 30% to 40% appreciation in ultra luxury Miami condo and home values by 2030. This applies specifically to large-footprint, resort-scale residences from established developers in irreplaceable locations, not to the broader, investor-driven segment of the market facing the 2028 cliff.

As new ultra luxury supply becomes harder to secure, expect buyer attention to shift toward resale opportunities at established addresses such as Apogee, Continuum, and Park Grove. The David Siddons Group tracks resale alternatives at each of these buildings as part of its ongoing Best and Worst New Developments coverage.

Talk to Someone Who Called This Two Years Ago

Every prediction in this article is backed by 12 closed units at Mandarin Oriental alone and nearly two decades of tracking Miami’s new construction market since 2008. If you are evaluating Mandarin Oriental’s remaining South and North Tower inventory, comparing it to other ultra luxury buildings across Miami, or want to know which unannounced projects are coming before they hit the market, the David Siddons Group can walk you through current pricing, availability, floor plans, contracts, and long-term forecasts, and connect you with past clients directly.

Call David Siddons at 305.508.0899 Email [email protected] Explore more at luxlifemiamiblog.com

Inventory at this level does not last. The buildings shaping this forecast are already 75% to 90% sold. Reach out today to secure a position before the next stack closes out.