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Building Type: Condo
Building Stage: Resale
Report Date: November 11th, 2025
$15M - $78.96M
Sales Started: 11 Years Ago (04/26/2015)
Closings Started: 7 Years Ago (08/30/2018)
Offering Type: New Construction Condominium
Developer: Zeckendorf Development, Global Holdings
Architect: Robert A. M. Stern Architects, Slce Architects
Landscape Design: --
520 Park Avenue is a prestigious condominium located in the Lenox Hill neighborhood, completed in 2018 by Zeckendorf Development and Global Holdings Designed by Robert A M Stern Architects and SLCE Architects, this 51-floor luxury building comprises 42 residences. It offers a comprehensive suite of building-level amenities including concierge and doorman services, elevator access, a garden, a swimming pool, fitness center, parking, and pet allowances Exclusive to residents is a private Club with top-tier facilities such as a two-
story fitness center, private training rooms, a yoga studio, a spa retreat with sauna and steam rooms, and a 25-meter indoor swimming pool Additional features include private dining and entertaining spaces, a wine cellar, 24/7 white-glove concierge service, a children’s playroom, an elegant garden, and specialized storage options including cold and bicycle storage. These amenities position the building among Manhattan's most refined Upper East Side living options, emphasizing privacy, luxury, and comprehensive resident services.


520 Park Avenue has an average asking price of $21M and an average sold price of $49M, reflecting the luxury market positioning of this building. With only 42 units in a 51-floor structure, the building offers exclusivity and spacious residences. The price per square foot indicates strong demand and premium valuation consistent with high-end Upper East
Side properties This limited unit mix combined with high average transaction prices suggests a niche market catering to affluent buyers seeking prestige and luxury within Manhattan. The data provided covers recent asking and sold prices over the last 24 months within this building.


Sales Contract Activity in Lenox Hill / Q3 2025
During the last quarter, Lenox Hill recorded 157 contracts with a total sales volume of approximately $403M spread over 94 buildings. New developments accounted for 3 contracts, resale condos 48, and resale co-ops 91 Compared to the previous year-over-year quarter, contract count increased from 145 to 157, total sales volume grew significantly from around $292M to $403M, and total buildings involved rose from 87 to 94 However, new development contracts decreased from 11 to 3 while resale condos and co-ops showed a slight increase. This activity reflects robust market demand with a shift away from new developments toward resale properties within the neighborhood


Average Sold Price / SF in Lenox Hill / Q3 2025
$1,823
$1,686
In Lenox Hill, last quarter's average price per square foot (PPSF) indicates an upward trend compared to the year-over-year quarter across all property types. New developments' PPSF decreased from about $2,014 to $1,823, indicating a downward trend in that segment Condos showed a PPSF rise from approximately $1,471 to $1,686, and co-ops also increased from about $1,060 to $1,090, demonstrating an upward movement Compared to 520 Park Avenue’s average asking PPSF of around $4,573 and sold PPSF of $4,001, the building’s prices are substantially above neighborhood averages, reflecting its luxury status and premium accommodations