Related's 70 Hudson Yards Arrives as Manhattan Trophy Office Demand Tightens

70 Hudson Yards: A New Tower Lands in a Market Starved for Supply

Related Companies and Oxford Properties Group are preparing to deliver 70 Hudson Yards, a 1.1-million-square-foot office tower going up at a moment of unusual scarcity in Manhattan. The building has already landed Deloitte as its anchor tenant for roughly 900,000 square feet — a commitment reported to be worth about $3 billion — and Related says it is negotiating leases for about half of the space that remains uncommitted. The project is running a few months ahead of schedule, with a temporary certificate of occupancy expected as early as summer 2028, according to Related executives.

The tower is the largest ground-up office development of its kind since the pandemic, and its arrival coincides with a squeeze at the top end of the market. Tenants have already leased 80 percent of the office space under construction in Manhattan, according to JLL, while Hudson Yards' availability rate fell to 4.5 percent in the second quarter, according to Colliers. With Park Avenue vacancy at record lows and few large blocks available in trophy buildings, brokers say companies are now signing leases years before projects are finished.

That dynamic is visible across Related's competitors. Law firm Simpson Thacher & Bartlett has agreed to take 916,000 square feet at Extell Development's 570 Fifth Avenue, which is slated for completion shortly after 70 Hudson Yards, and Starr and McDermott Will & Schulte have committed to BXP's 343 Madison Avenue, expected in 2029. Related points to a string of recent Hudson Yards deals — L'Oréal's 484,000-square-foot renewal at 10 Hudson Yards, Jump Trading's 99,000-square-foot lease and BlackRock's 194,000-square-foot expansion at 50 Hudson Yards — as evidence that the neighborhood has become a destination rather than a gamble.

The question now is how long the demand can last. Related's Stephen Winter says the decision to build was simple: 'It just felt like a no-brainer to introduce another office tower to Hudson Yards.' If 70 Hudson Yards leases up quickly at the rents brokers describe, it will reinforce the case for more high-end development; if demand cools, the building's heavy reliance on a single anchor tenant will become its most visible vulnerability.

What 70 Hudson Yards Says About the Trophy Office Market

The Scarcity Math Behind 70 Hudson Yards

Verified market facts set the stage: Hudson Yards availability fell to 4.5 percent in the second quarter, tenants have already leased 80 percent of Manhattan's under-construction office space, and Park Avenue vacancy is at record lows. The interpretation is that Related deliberately built into a supply vacuum — construction began a year ago just as leasing activity rebounded, and the tower is one of only a handful of new Manhattan deliveries expected over the next several years. That timing, if it holds, gives Related unusual pricing power; brokers report Hudson Yards rents have well eclipsed $200 per square foot and could exceed $300 in some deals. Those figures are broker accounts rather than publicly confirmed lease terms.

Deloitte's Anchor Commitment Changes the Risk Profile

Deloitte's reported commitment of roughly 900,000 square feet, valued at about $3 billion, removes the biggest leasing risk from the project. The firm initially signed for 807,000 square feet and later expanded by about 93,000, with JLL's Benjamin Bass saying Deloitte wanted to consolidate offices and secure room to grow while competing for talent. For Related and Oxford, the anchor means the building's core return was largely locked in before completion; only part of the remaining space still needs to be negotiated. The analytical caveat is concentration: a single tenant represents the majority of a 1.1-million-square-foot tower, so Deloitte's long-term real estate strategy becomes central to the project's fortunes.

Hudson Yards vs. Park Avenue: A Network Effect Story

Brokers in the story argue Hudson Yards now competes head-to-head with Park Avenue, a remarkable shift for a neighborhood once considered a risky bet. CBRE's Ryan Alexander describes hedge funds and private equity firms seeing rivals' workplaces and concluding they need to upgrade, especially to attract talent. Related's Andrew Cantor points to network effects: each new tenant deepens the campus's center of gravity. The evidence cited is a run of recent deals by L'Oréal, Jump Trading and BlackRock, plus Deloitte's anchor. That is a plausible interpretation of peer-driven demand, though it depends on continued strength in financial services, law, consulting and tech hiring.

What Could Still Go Wrong

The same scarcity that favors 70 Hudson Yards could reverse if Manhattan leasing slows. The next wave of trophy towers — Extell's 570 Fifth Avenue and BXP's 343 Madison Avenue — will compete directly for large-block tenants in the same premium bracket. And the story's own numbers contain a structural risk: with Deloitte accounting for roughly 900,000 of the building's 1.1 million square feet, the project is essentially a one-tenant monument until the remaining space is leased. A future contraction at Deloitte, or a broader retreat from offices, would hit this building harder than a more diversified asset.

How Tenants and Landlords Should Plan Around the Trophy Space Crunch

For companies searching for large blocks of premium Manhattan office space, the main takeaway is that the market's timing mechanics have changed. JLL's Benjamin Bass says tenants now need to commit two to five years in advance to secure top-quality space. Specific implications:

• Tenants whose leases expire between 2028 and 2030 should begin touring and underwriting trophy blocks now; JLL reports 80 percent of Manhattan's under-construction office space is already leased, and large commitments are now made years ahead of delivery.
• Budget for top-of-market rents: brokers say Hudson Yards has well eclipsed $200 per square foot and could exceed $300 in some deals, so tenant representatives need to test those levels against 2028-2030 delivery dates.
• For Related and Oxford, the next milestones are the summer 2028 temporary certificate of occupancy and lease-up of the roughly 200,000 square feet not accounted for by Deloitte's reported commitment; delivering ahead of schedule would give them first access to the remaining tenant pool before Extell's 570 Fifth Avenue and BXP's 343 Madison arrive.
• Companies considering Hudson Yards should weigh the neighborhood's network effects — recent deals by L'Oréal, Jump Trading and BlackRock — against the concentration risk of a campus anchored heavily by one tenant.