521 Park Avenue #5BC
MLS® #RLS10955961
Listing by Compass
4
Bedrooms
5.5
Baths
3,440
Sq. Ft.
1912
Year Built
Quick Summary
Property Highlights
- Exposure: East,North,South facing
- Fireplace: 1 fireplace
- Climate Control: Central Air
Property Details
Description
Indulge in luxurious living in this exceptional 4 bed, 4.5 bath pre-war condominium directly on Park Avenue. An architectural masterpiece, this sprawling home features 10 windows and 80 feet of Park Avenue frontage. The residence offers captivating views of the city skyline, while the soaring 10ft ceilings and a 36-foot gallery create a grand entrance to the home. Upon entering, the expansive living room with a cozy gas-burning marble fireplace and wall of windows is sure to impress, while the dining room that comfortably seats 24 is conveniently connected to the kitchen, ideal for both formal and casual dining. Designed for the discerning chef, the enormous eat-in kitchen boasts top-of-the-line appliances, including a vented 6-burner stove top, 3 ovens, 2 sinks, 2 dishwashers, and ample counter and storage space. A lavish hallway leads to four generously sized bedrooms, complemented by three windowed bathrooms. The primary bath features an extra-large soaking tub and a separate glass shower. The laundry room, with a full-size washer and vented dryer, and a full bath are located adjacent to the kitchen. Fine pre-war details, such as soaring ceilings, stunning floors, 4 gas-burning fireplaces, custom millwork, large windows with fabulous views, a washer/dryer, and phenomenal closet space, lend character to this impeccable home. Built in 1911 by renowned architect William Alciphron Boring, 521 Park is one of the few pre-war condominiums on Park Avenue, with a wonderful and attentive staff. Amenities include a gym. Live just moments away from Central Park, museums, and some of New York City's finest restaurants and shopping destinations, in a home that epitomizes timeless elegance. Pets are welcome.
Features & Amenities
Interior Features
Appliances
Building Information
Financial Details
About Upper East Side
View All Upper East Side ListingsThe Upper East Side remains the gold standard for classic New York elegance. Known for 'Museum Mile' and its quiet, tree-lined streets, the neighborhood offers a refined lifestyle away from the midtown bustle. While famous for its historic cooperatives, the area has seen a recent surge in ultra-luxury new construction condos, particularly along the Second Avenue Subway corridor, making it a top choice for both traditionalists and modern buyers.
Upper East Side Live Market Data
View NeighborhoodActive Listings
323
Median Asking Price
$1.30M
Median $/Sqft
$1,449
Avg Days on Market
N/A
New This Week
20
Price Reduced
23%
Sold (30 Days)
38
Median Sale Price
$1.40M
Live data from RLS at REBNY • Updated 3/26/26, 4:46 PM EST
Similar Listings in Upper East Side
View All
Active
151 E 85th Street #19G
Condo • RLS #RLS20075873
Active
70 E 96th Street #2D
Co-op • RLS #RLS20078084
Active
990 5th Avenue #4 5
Co-op • RLS #RLS20057968
Active
1025 5th Avenue #11EN
Co-op • RLS #RLS20064856
Active
122 E 82ND Street #8AD
Co-op • RLS #RLS20045673
Active
308 E 79th Street #13EF
Co-op • RLS #RLS20059212
Location
521 Park Avenue #5BC, Upper East Side, New York County
Floor Plans
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Listing Courtesy of Compass - Charlie Attias
Listing Contact: (917) 273-8613
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., all rights reserved. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 3/26/2026 at 8:46 PM UTC