Block Hall, 21 South William Street, NYC - Condo Apartments

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Block Hall,
21 South William Street

condo located in Financial District, between Broad Street & Hanover Square

Recent Sales (4) $1,216 Avg. price/ft²
All Units in Building (31)

Apt. 2D

1 bed

1 bath

642 ft²

$872,000 -6.7%

$1,358

$935,000

Sep 22, 2023

Apt. 3D

1 bed

1 bath

745 ft²

$835,000 -4.6%

$1,121

$875,000

Jun 13, 2023

Apt. 6B

1 bed

1 bath

641 ft²

$710,000 -10.7%

$1,108

$795,000

Jan 17, 2023

Apt. 5D

1 bed

1 bath

686 ft²

$875,000

$1,276

$875,000

Jul 22, 2022

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Overview of Block Hall at 21 South William Street

21 South William Street was built in 1927 and converted to condos in 2005. Block Hall has a total of 31 apartments and is located in the Financial District, very close to the J, Z, 1, 2, 3, R, 4 and 5 subway lines.

Amenities at this pre war building include fitness center, rooftop terrace, concierge and central ac.

Similar nearby buildings include 15 William Street, 25 Broad Street, 75 Wall Street and 88 Greenwich Street.

Year Built

1927

Converted: 2005

Apartments

Floors

Neighborhood

Financial District (Manhattan)

Min Down

20%

31Apartments

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Sales & Rentals
in Building

Amenities

Concierge
Pre War
Central AC
Rooftop Terrace
Elevator
Fitness Center

Area Map StreetView

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Nearby Subways

at Nassau and Cedar 0.15 miles

at null and null 0.15 miles

at Broadway and Battery Pl 0.18 miles

at William and Cedar 0.19 miles

at William 0.41 miles

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Pricing Comparison of Similar Buildings

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Editorial Coverage

Alternate Addresses

21 s -23 william st
21 s william st
21 south william street
21-23 South William Street
2123 s william st
23 s william st
45 Stone Street
45-47 Stone Street
47 Stone Street

520 Fifth Avenue

at the northwest corner of West 43rd Street

Midtown West

Iconic river-to-river views include the Empire State Building and Central Park. Elevated condos with magnificent arched windows, triple exposures, and soaring ceilings | Occupancy 2026.

3 beds starting at $5,950,000

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RLS IDX Data display by CityRealty.com, LLC. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.

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An equal housing opportunity

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Block Hall,21 South William Street

condo located in Financial District, between Broad Street & Hanover Square

Overview of Block Hall at 21 South William Street

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Sales History by Apartment Size

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Block Hall,
21 South William Street

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