New York City » 10004 » S William St » 9 S William St

9 South William Street, New York, NY 10004 - Property report

Also known as: 9 Mill Ln

Property image for 9 South William Street, New York, NY 10004

Property type

Boutique 10-100 Rooms, with Luxury Facilities, Themed, Stylish, with Full Service Accommodations (HB)

Year built

1920

Lot sq. ft.

3,234

General information

Address

Primary address

9 South William Street

Alternate address(es)

59-61 Stone St
9 Mill Ln
9-11 S William St

ZIP code

10004

Neighborhood

Financial District

Borough

Manhattan

Block & lot

00029-0043

Building

Property type

Boutique 10-100 Rooms, with Luxury Facilities, Themed, Stylish, with Full Service Accommodations (HB)

Building sq. ft.

24,238

Building dimensions

42 ft x 78 ft

Buildings on lot

Stories

Year built

1920

Building material

Tax

Tax year

2026-2027

Property tax

$348,375

Tax class

Floor area ratio (FAR)

Commercial FAR

Residential FAR

Buildable area

Zoning & Use

Zoning

Qualified opportunity zone

Residential units

Residential sq. ft.

Office sq. ft.

Retail sq. ft.

Lot

Lot dimensions

42.83 ft x 76.5 ft

Lot sq. ft.

3,234

Area overview

Walk score

100 /100. Walker's Paradise

Transit score

100 /100. Rider's Paradise

Bike score

81 /100. Very Bikeable

School district

Community district

Closest police station

1.03 Miles

Closest fire station

0.11 Miles

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 9 South William Street, New York, NY

Unlock full ownership info — get contact details, including phone numbers and emails for owners and the real people behind LLCs.

Property owner name

Registered owner

Source

Deed

Owner contact information

Phone number

Owner address

Documents

Sales history for 9 South William Street, New York, NY 10004

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date	Type	Party 1	Party 2
10/01/2020 - R 09/24/2020 - D	Landmark Designation (2020092400178001)	XXX XXXXXXXXX XXXXXXXXXXXX XXXXXXXXXX
08/22/2011 - R 08/10/2011 - D	Landmark Designation (2011081100988001)	XXXX XX XXX XXXX
06/22/2004 - R 12/04/2003 - D	Certificate (2004020401750005)	XXX XXXXXXXXXX XX XXXXXXX
06/15/2001 - R	Sundry Agreement (1560007705356)
02/09/1995 - R	Satisfaction of Mortgage (1050004593305)	XXXXX XXXXXXX XXXXXXXXXXXXXXXX	XXXXXXXX XXXX
11/17/1994 - R	Assignment, Mortgage (1680004495268)	XXXXXXXX XXXX	XXXXX XXXXXXX XXXXXXXXXXX
11/29/1991 - R	Agreement (1450000386345)	XXXXXXXX XXXX	XXXXX XXXXXXX XX XXXXX
09/09/1988 - R	Uniform Commercial Code 1 (1200000500020)	XXXXX XXXXXXX XX XXXXX	XXXXXXXX XXXX XXXXXXXX
09/06/1988 - R	Mortgage (1180000266118)	XXXXX XXXXXXX XX XXXXX	XXXXXXXX XXXX
09/06/1988 - R 08/24/1988 - D	Deed (1170000266117)	XXXXXXXX XXXXX XXXXXXXX	XXXXX XXXXXXX XX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 9 South William Street, New York, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax

Tax year

2025-2026

Property tax

$348,375

Municipal exemptions

Recent tax assessments

Market value

$7,980,000

Assessed value

$3,591,000

More about New York City property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year	Market value	Assessed value	Taxable amount	Tax rate	Base tax	Property tax	Y-o-Y change
2025/26	$7,872,000	$3,542,400	$3,085,550	10.848%	$334,720	$334,720	-0.03%
2024/25	$7,558,000	$3,401,100	$3,111,070	10.762%	$334,813	$334,813	+5.38%
2023/24	$6,666,000	$2,999,700	$2,999,700	10.592%	$317,728	$317,728	+4.56%
2022/23	$6,343,000	$2,854,350	$2,854,350	10.646%	$303,874	$303,874	+1.29%
2021/22	$6,199,000	$2,789,550	$2,789,550	10.755%	$300,016	$300,016	-30.48%
2020/21	$8,968,000	$4,035,600	$4,035,600	10.694%	$431,567	$431,567	+4.92%
2019/20	$10,321,000	$4,644,450	$3,903,600	10.537%	$411,322	$411,322	+3.15%
2018/19	$10,219,000	$4,598,550	$3,792,710	10.514%	$398,766	$398,766	+6.16%
2017/18	$9,873,000	$4,442,850	$3,572,480	10.514%	$375,611	$375,611	+8.50%
2016/17	$10,795,000	$4,857,750	$3,273,910	10.574%	$346,183	$346,183	+1.07%

Permits

Permit information for 9 South William Street, New York, NY

Filing date	Job type	Job status	Job description	Initial cost
12/27/2023	Alteration
06/30/2023	Alteration
06/12/2023	Alteration
03/21/2023	Alteration
04/13/2022	Alteration

*Most recent permits on record for this property.

More about New York City property records

Violations

DOB Violations

Violation ID	Issue date	Type	Status
	12/17/2021	Evcat5-non-residential elevator periodic inspection/test
	06/06/2018	Landmk-landmark
	06/06/2018	Landmk-landmark

*Most recent DOB violations on record for this property.

Listings

Neighborhood

Manhattan commercial market stats

Review a detailed real estate market overview of Manhattan and assess current trends, property values, property types sold and transaction volumes. View the median price per square foot in Manhattan and compare it to other New York City boroughs.

Q2 2026 median price/sq. ft.

$729

10.4% Y-o-Y

Q1 2026 median price/sq. ft.

$807

22.4% Y-o-Y

2025 median price/sq. ft.

$630

-8.1% Y-o-Y

Check out recently sold homes in Manhattan and see how their prices compare.

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones

0.2,X

Hurricane evacuation zones

Subway & traffic

Closest station

Broad St & Exchange Pl at SW Corner (Exit Only)

Station lines

J-Z

Distance (miles)

0.105

View subway map

Access the detailed traffic volume map for 9 South William Street, New York, NY 10004 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity. View daily traffic map

Neighbors for 9 South William Street, New York, NY

81 Pearl St, New York 55 Stone St, New York 83 Pearl St, New York 79 Pearl St, New York 11 Hanover Sq, New York 19 S William St, New York 1 William St, New York 13 S William St, New York 74 Pearl St, New York 52 Stone St, New York 14 S William St, New York 56 Beaver St, New York 76 Pearl St, New York 53 Stone St, New York 58 Stone St, New York 77 Pearl St, New York 80 Beaver St, New York 44 Beaver St, New York 1 Hanover Sq, New York

Frequently asked questions

What is the year built for 9 South William Street, New York, NY 10004?

The development at 9 South William Street, New York, NY 10004 was built in 1920.

What is the market value of 9 South William Street, New York, NY 10004?

The current market value of 9 South William Street, New York, NY 10004 is $7,980,000.

What is the total square footage of 9 South William Street, New York, NY 10004?

9 South William Street, New York, NY 10004 has a total of 24,238 square feet.

How many commercial spaces does this building have?

The number of commercial spaces in this building is 2.

Disclaimer

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.