Cooperative · 1917
The Yosemite
550 Park Avenue, New York, NY 10065
Buildings·Cooperative

The Yosemite (550 Park Avenue)

550 Park Avenue, New York, NY 10065

At a glance
Year built
1917
Type
Cooperative
Units
32
Landmark
Designated

550 Park Avenue — The Yosemite — is a 1917 J.E.R. Carpenter cooperative at the corner of Park Avenue and East 62nd Street, one of the early luxury apartment houses that established Park Avenue's identity as the city's premier residential avenue. Completed in December 1917, it stands among the avenue's pioneering full-luxury buildings, finished just as the Park Avenue apartment tradition was crystallizing into the form that would dominate the next two decades.

The Carpenter authorship is the point. J.E.R. Carpenter was the leading architect of Manhattan's golden-age luxury apartment houses — the figure most responsible for codifying the large, formally planned Park and Fifth Avenue residence that buyers still seek today. At 550 Park, that pedigree shows in the building's defining feature: an exceptionally low apartment count. With only around three dozen residences across 17 stories, The Yosemite is among the most exclusive buildings on the avenue by density, with large, gracious layouts and the rare intimacy of a building where neighbors number in the dozens, not the hundreds. It converted to cooperative ownership in 1952 and has been tightly held ever since; over the decades its residents have included August Belmont Jr., Diana Vreeland, and the building's own architect.

Architecture and unit composition

The Yosemite's residences are large by any measure — the building's roughly 4,400 square feet of area per home signals full-floor and grand simplex-and-duplex configurations rather than the divided layouts of denser buildings. Carpenter's golden-age planning recurs throughout: ceiling heights reaching eleven feet in the primary rooms, formal entry galleries, separate dining rooms, libraries, herringbone walnut floors, oversized windows with varied exposures, and wood-burning fireplaces in many apartments. Private elevator landings serve many of the homes.

The corner siting at Park and 62nd delivers light and air on two sides, with Park Avenue exposures looking across the avenue's landscaped median. The combination of low density, large floor plates, and Carpenter detailing puts The Yosemite firmly in the connoisseur tier of pre-war Park Avenue cooperatives.

Building operations

The Yosemite operates as a white-glove full-service cooperative with a full-time doorman, attended elevator, a live-in superintendent, and private storage. The very low apartment count produces the intimate, highly personal operating environment characteristic of the most exclusive Park Avenue buildings. Pets are allowed, and — unusual for a building of this caliber — pied-à-terre purchases are permitted, which broadens the buyer pool to include part-time New Yorkers and trust or family buyers. Financing is limited, in keeping with tier-one Park Avenue practice, with the cooperative permitting only modest leverage (on the order of half the purchase price). A board-approval process applies, consistent with the avenue's most selective buildings.

Local Law 97

Carbon-penalty exposure
🟡
Moderate — manageable today, 2030 cliff likely
2024–2029 annual penalty
$0 (under cap)
2030–2034 annual penalty
$51,155/yr
Per unit / month range
$0 – $122
See full Local Law 97 analysis — emissions history, scenarios, methodology →

Facade safety — Local Law 11

Local Law 11 / FISP · last inspection 2020–25
Safe
What this means for you

The facade passed its last inspection with no required repairs — nothing to budget for here, and no facade assessment on the horizon for roughly five years.

Inspection history
2005–10
SWARMP
2010–15
SWARMP
2015–20
Safe
2020–25
Safe
2025–30
Due
Next report due
by Feb 2027
On record
$2,250 in filing penalties
The three grades, in buyer terms
SafeGood for ~5 years — no facade assessment on the horizon.
SWARMPSafe now, repairs due on a deadline — budget for the work or a possible assessment.
UnsafeActive hazard: sidewalk shed and repairs now. Expect disruption and an assessment.

QEWI = Qualified Exterior Wall Inspector — the licensed engineer the city requires to sign the report (the independent expert, not the managing agent). Source: NYC DOB facade filings (FISP) · The Roebling Research Library.

See the full facade history →

Recent sales

The /sales tab below draws live from the building's tax lot. Turnover is genuinely scarce — with only around three dozen apartments, a typical year sees just a small handful of trades, and some years pass with very few. Pricing reflects the building's exclusivity and the scale of its homes: full-floor and grand pre-war configurations command the avenue's upper tier. Because internal precedent is thin, each apartment is best valued through a corridor-level golden-age Park Avenue comparable analysis rather than frequent in-building history.

What to know if you’re buying

Scarcity is the defining fact: with so few apartments, opportunities are rare and large, and buyers need to be both patient and ready to move. The Carpenter pedigree, the 1917 vintage, and the eleven-foot ceilings, galleries, libraries, and fireplaces are the real assets. Two policies matter to your strategy: pied-à-terre purchases are permitted, which is a meaningful flexibility at this tier, and a 3% flip tax is paid by the purchaser on acquisition — a cost buyers should build into their all-in number from the outset. Financing is restricted to roughly half the price, so plan for substantial cash. Board approval is rigorous; strong financials and clean references are essential. We help buyers source rare availability, evaluate the apartment, and prepare for a selective board.

What to know if you’re selling

Lead with exclusivity and pedigree: the very low unit count, the Carpenter authorship, the 1917 vintage, the eleven-foot ceilings and fireplaces, and the prime Park-and-62nd corner are the headline assets. The permitted pied-à-terre policy widens your buyer pool relative to many tier-one peers — a genuine marketing advantage worth foregrounding. With thin internal turnover, pricing draws on corridor-level golden-age Park Avenue precedent adjusted for the specific home. The buyer pool is narrow but deep; the right marketing reaches well-qualified buyers directly, and the closing follows the building's selective board process.

Comparable buildings

If you're considering The Yosemite, also evaluate these nearby pre-war Park Avenue cooperatives:

The Roebling Team at The Yosemite

The Roebling Team at Compass specializes in Park Avenue, the Upper East Side, and the broader Park-facing Manhattan market along Central Park West and Fifth Avenue. We publish this profile because buyers and sellers in the avenue's connoisseur tier deserve building-specific intelligence — architecture, the rules, and where the pricing actually sits. If you're considering a purchase or sale at The Yosemite, a 30-minute consultation is the right starting point.

Considering a move at The Yosemite?

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Current availability including off-market, the full comp set, and the board & financials read most listings don't show.

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Corey Cohen, Principal · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com