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South William Street

No Department of Buildings filing in the current snapshot names South William Street. What City Planning records about the street itself is below, and a filing here will appear on this page when one is published.

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What is on this street

The built record of South William Street

City Planning maps 7 tax lots on South William Street in Manhattan, 57% of them mixed residential and commercial. The oldest went up in 1838 and the newest in 1962. This describes the street as it stands, not the filings below.

Where 1830s sits in the city’s own timeline

Tax lots
7
Buildings
7
Homes
41
Typically built
1830s
Typical height
6–8 floors
Built area
165,104 sq ft

How the lots are used

  • Mixed residential and commercial4 of 7
  • Commercial and office2 of 7
  • Parking facilities1 of 7

Zoning: C5-5 across every mapped lot. A zoning district sets what may be built, not what is there now.

NYC Department of City Planning · Primary Land Use Tax Lot Output (PLUTO) · 64uk-42ks · read 2026-09-11

Why this page exists

A street with no filing is still a street.

South William Street is mapped by the Department of City Planning and carries the buildings described above, but no Department of Buildings filing in the current snapshot names it. Nothing is missing from this page; nothing has been filed. It is not offered to search engines until a filing appears here.

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The whole street

A block of South William Street, as it stands.

Each building is its own outline at its own roof height, in its own place — the gap down the middle is the street. Turn it to see the other side. The letter on a roof is the building class the city files it under.

H9 South William Street — Hotels · 7 storeys · built 1896G14 South William Street — Parking · 8 storeys · built 1962O13 South William Street — Offices · 3 storeys · built 1839S15 South William Street — Apartments · 4 storeys · built 1839 · 3 homesS17 South William Street — Apartments · 6 storeys · built 1838 · 4 homesS19 South William Street — Apartments · 5 storeys · built 1839 · 3 homesR21 South William Street — Apartments · 8 storeys · built 1928 · 31 homesH9 South William Street — Hotels · 7 storeys · built 1896O13 South William Street — Offices · 3 storeys · built 1839S15 South William Street — Apartments · 4 storeys · built 1839 · 3 homesS17 South William Street — Apartments · 6 storeys · built 1838 · 4 homesS19 South William Street — Apartments · 5 storeys · built 1839 · 3 homesG14 South William Street — Parking · 8 storeys · built 1962R21 South William Street — Apartments · 8 storeys · built 1928 · 31 homesR21 South William Street — Apartments · 8 storeys · built 1928 · 31 homesS19 South William Street — Apartments · 5 storeys · built 1839 · 3 homesS17 South William Street — Apartments · 6 storeys · built 1838 · 4 homesS15 South William Street — Apartments · 4 storeys · built 1839 · 3 homesO13 South William Street — Offices · 3 storeys · built 1839H9 South William Street — Hotels · 7 storeys · built 1896G14 South William Street — Parking · 8 storeys · built 1962R21 South William Street — Apartments · 8 storeys · built 1928 · 31 homesS19 South William Street — Apartments · 5 storeys · built 1839 · 3 homesS17 South William Street — Apartments · 6 storeys · built 1838 · 4 homesS15 South William Street — Apartments · 4 storeys · built 1839 · 3 homesO13 South William Street — Offices · 3 storeys · built 1839G14 South William Street — Parking · 8 storeys · built 1962H9 South William Street — Hotels · 7 storeys · built 1896
Seen from the
  • Apartments
  • Offices
  • Hotels
  • Parking
7 of the 7 lots the city maps on South William Street — about 260 feet of it, the tallest 31 metres. Each building is the outline City Planning publishes for it, raised to the roof height the city measured, and placed where it stands in relation to its neighbours; nothing is arranged and nothing is to a different scale from anything else. The gap down the middle is the street. A letter is the building class the city files that building under.

Building by building

What stands on South William Street.

No Department of Buildings filing names South William Street, and the city maps its buildings anyway. Each drawing is that building’s own footprint at its own roof height, from the outlines City Planning publishes, and the panel beside it is what the tax roll records about the lot.

The rest of South William Street, which no filing names.

9 South William Street

What is here

Built
1896
Storeys
7
Recorded as
Hotel
Zoning
C5-5
Lot
3,234 sq ft

In the Stone Street Historic District.

1 open housing violation. What the classes mean

13 South William Street

What is here

Built
1839
Storeys
3
Recorded as
Office building
Zoning
C5-5
Lot
1,443 sq ft

In the Stone Street Historic District.

No Department of Buildings filing in the current snapshot names this building.

14 South William Street

What is here

Built
1962
Storeys
8
Recorded as
Garage or fuel station
Zoning
C5-5
Lot
11,398 sq ft

No Department of Buildings filing in the current snapshot names this building.

15 South William Street

What is here

Built
1839
Storeys
4
Homes
3
Last sold
$10,250,000
Recorded as
Mainly residential with some commercial
Zoning
C5-5
Lot
1,502 sq ft

In the Stone Street Historic District.

5 open housing violations, 2 immediately hazardous. What the classes mean

17 South William Street

What is here

Built
1838
Storeys
6
Homes
4
Last sold
$10,250,000
Recorded as
Mainly residential with some commercial
Zoning
C5-5
Lot
1,738 sq ft

In the Stone Street Historic District.

No Department of Buildings filing in the current snapshot names this building.

19 South William Street

What is here

Built
1839
Storeys
5
Homes
3
Recorded as
Mainly residential with some commercial
Zoning
C5-5
Lot
1,824 sq ft

In the Stone Street Historic District.

No Department of Buildings filing in the current snapshot names this building.

21 South William Street

What is here

Built
1928
Storeys
8
Homes
31
Recorded as
Condominium
Zoning
C5-5
Lot
4,377 sq ft

In the Stone Street Historic District.

No Department of Buildings filing in the current snapshot names this building.

On the market

One home on South William Street is listed today.

What the brokerages are currently asking along this street. Each one links to the agent’s own page, where the price is live and the photographs are.

Everything on the market in Manhattan.

Source snapshot accessed Sep 17, 2026. Street grouping is based on the normalized street-name field.