Office building with commercial space · Union Square, Manhattan

Ely Building

37 East 18th Street, New York, NY 10003

The Ely Building (37 East 18th Street) is a 10-floor office building with commercial space in Union Square, Manhattan, built in 1897, with about 45,000 square feet of office space according to city records.

Also at 37-41 East 18th Street.

Office space
45K SF
Floors
10
Year built
1897
Zoning
M1-5M

Office space next to its nearest neighbors

  1. 230 Park Avenue South1 min walk311K SF
  2. 33 East 18th Street1 min walk63K SF
  3. Ely BuildingThis building45K SF

The 46th largest of the 53 office buildings we track in Union Square. Compare it with 6 neighbors

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Compared with its neighbors

How the Ely Building compares

Next to the 6 nearest large office buildings, all within a 1 minute walk, the Ely Building is the smallest by office floor area. It went up in 1897; the median neighbor dates from 1892. Its estimated property tax, about $17.76 a square foot of floor area before abatements, is below the neighbors' median of $23.69.

The Ely Building and the 6 nearest large office buildings: size, floors, year built, estimated property tax per square foot and last sale
BuildingOffice spaceFloorsBuiltTax / SFLast sale
Ely Building, 37 East 18th StreetThis building45K SF101897$17.76Aug 2024, $27M
33 East 18th Street1 min walk63K SF101900$19.55Feb 2025, $38M
230 Park Avenue South1 min walk311K SF131900$23.58Sep 2007, $229M
W. & J. Sloane Building, 880 Broadway1 min walk62K SF61882$28.76n/a
Parish Building, 860 Broadway1 min walk65K SF61884$23.81n/a
Everett Building, 200 Park Avenue South1 min walk224K SF161908$23.86n/a
873 Broadway1 min walk47K SF81880$11.62n/a
The 46th largest of the 53 office buildings we track in Union Square: see the full list

Sources: NYC Department of City Planning, PLUTO 26v2 for size, floors and year built; NYC Department of Finance 2026/27 roll for tax (taxable value times the class rate, before abatements, over the whole floor area); ACRIS for the last deed that moved the whole lot for a real price (a price for several lots is their combined price; condominiums sell by the unit and show n/a). Large means at least 35,000 SF of the building's main use. Walking times are straight-line estimates.

NYC tax lot records

Building facts

Building name
Ely Building
Other address
37-41 East 18th Street
ZIP code
10003
Building type
Office building with commercial space (city class O6)
Total floor area
67,051 SF
Commercial floor area
67,051 SF
Office
45,328 SF
Retail
12,783 SF
Industrial and storage
8,940 SF
Height
10 floors
Average floor
About 6,700 SF (floor area divided by floors)
Year built
1897
Lot area
6,900 SF
Zoning district
M1-5M
Built FAR
9.72
Max commercial FAR
5
Historic district
Ladies' Mile Historic District
Tax lot (BBL)
1008470029

Nearest subway

  • 14 St-Union Sq3 min walk · Accessible station
  • 23 St-Baruch College4 min walk · Accessible station
  • 23 St5 min walk · Not accessible

Nearby large buildings

Source: NYC Department of City Planning, PLUTO 26v2, pulled 2026-10-05; addresses from the Property Address Directory (PAD) 26b; building name from the NYC Landmarks Preservation Commission (below); subway stations from the MTA Subway Stations dataset, pulled 2026-10-05. Floor areas are the city's estimates for the whole building, not available space. Walking times are straight-line estimates. How we build these pages. Something wrong on this page? Tell us.

NYC storefront registry (Local Law 157)

Storefronts and vacancy

Owners registered one storefront at the Ely Building for December 31, 2024, the newest annual filing the city has published, and it was not vacant that day.

Storefronts registered for December 31, 2024
1
Vacant that day
0
Share vacant across Union Square
10.6%
Share vacant citywide
8.7%

Vacant on December 31, by year

  • 20190 of 1
  • 20200 of 1
  • 20210 of 1
  • 20220 of 1
  • 20230 of 1
  • 20240 of 1

Bars show the share of the lot's registered storefronts that stood vacant.

Source: NYC Department of Finance, Storefronts Reported Vacant or Not (Local Law 157), annual filings for 2019 to 2024, pulled 2026-10-08. Owners of buildings with ground- or second-floor storefronts register each one every year with its status on December 31; counts are by tax lot, as the owners filed them. The 2024 filing was due June 3, 2025, so a storefront vacant then may have been leased since. A vacant storefront is not always on the market, and none here is listed on Leasemark unless it shows above.

NYC Department of Finance records

Owner, property tax and assessed value

The Department of Finance lists EAST 18TH STREET LLC as the owner of record. For tax year 2026/27 the city values the Ely Building at $26.4 million and assesses it at $11.9 million. After phase-ins and exemptions its taxable value is $11 million; at the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists) that comes to about $1.19 million a year before abatements, roughly $17.76 per square foot of floor area. Commercial leases here often pass a tenant's share of tax increases over a base year through as additional rent.

Owner of record
EAST 18TH STREET LLC
Tax class
Class 4 (commercial and industrial)
City market value
$26,404,000
Land market value
$2,650,000
Assessed value
$11,881,800
Taxable value (phased in)
$10,976,400
Estimated yearly tax
About $1.19 million
Tax per SF of floor area
About $17.76

City market value by tax year

  • 2022/23$21.3 million
  • 2023/24$24.3 million
  • 2024/25$24.8 million
  • 2025/26$25.2 million
  • 2026/27$26.4 million

Market value rose 24% from 2022/23 ($21.3 million) to 2026/27.

How Union Square compares: property tax per SF across NYC neighborhoodsEstimate this tax bill, or a tenant's share of it

Source: NYC Department of Finance, Property Valuation and Assessment Data (2026/27 roll; owner names as the roll records them, which cuts some long names short), pulled 2026-10-08; tax rate from the Department of Finance tax rates page, checked 2026-09-28. The estimate is the taxable value times the class rate. It leaves out abatements, payment-in-lieu-of-taxes agreements and charges, so the actual bill can differ.

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NYC property records (ACRIS)

Sales history

The Ely Building last sold in August 2024 for $27 million, according to the deed recorded with the city. 37-41 EAST 18TH STREET REALTY CO., LLC, ANI ERIC COLE, LLC and others sold it to EAST 18TH STREET LLC. That comes to about $403 per square foot of floor area.

Last sale (deed date)
August 29, 2024
Price
$27,027,000
Price per SF of floor area
About $403
Seller
37-41 EAST 18TH STREET REALTY CO., LLC, ANI ERIC COLE, LLC and others
Buyer
EAST 18TH STREET LLC
Deed recorded
September 6, 2024
ACRIS document
2024083000178001
All 10 building sales in Union Square since 2016

Source: NYC Department of Finance, ACRIS, Real Property Master, Legals and Parties, pulled 2026-10-08; prices as the deeds state them, names as recorded (companies and public bodies only). Shown are deeds that move the whole lot for a real price. Transfers between related companies for a nominal sum, sales of partial interests, land sales before the building went up and sales of the company that owns a building are left out.

NYC energy benchmarking (Local Law 84)

Energy score, grade and emissions

The Ely Building reported an ENERGY STAR score of 98 out of 100 for 2023 in its Local Law 84 benchmarking filing. Under Local Law 33 that score earns an A (85 or higher). Its site energy use came to 27.9 kBtu per square foot, less than half the national median of 89.8 for a similar property. Its greenhouse gas emissions were about 182 metric tons of CO2e (2.5 kg per square foot).

ENERGY STAR score (2023)
98 of 100
Grade this score earns (Local Law 33)
A (85 or higher)
Property type (Portfolio Manager)
Office
Site energy use intensity
27.9 kBtu/SF
National median for the type
89.8 kBtu/SF
Greenhouse gas emissions
182 t CO2e
Emissions per SF
2.5 kg CO2e
Floor area in the filing
71,745 SF

ENERGY STAR score by year

  • 202286 (A)
  • 202398 (A)

Energy sources in 2023

  • Fuel oil52%
  • Electricity48%

Share of the energy used on site, as filed.

Source: NYC Department of Buildings and Mayor's Office of Climate and Environmental Justice, NYC Building Energy and Water Data Disclosure for Local Law 84 (2023 filing), pulled 2026-10-08; grade cutoffs from the Department of Buildings energy grades page. Figures are as the owner filed them in ENERGY STAR Portfolio Manager. The grade is the one the filed score earns under the law's cutoffs; the Department of Buildings assigns the grade a building posts, which can differ.

Local Law 97 of 2019, estimated

Local Law 97 emissions limit

At its 2023 energy use, the Ely Building comes to about 159 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 544 tons for 2024 to 2029 (29% of the limit), so it would owe no penalty. From 2030 the limit drops to 190 tons and the same energy use counts as about 118 tons, still under the limit.

Period
2024 to 2029
Emissions limit
544 t CO2e
Estimated emissions
159 t CO2e
Under the limit by
385 t CO2e
Estimated penalty a year
None
Period
2030 to 2034
Emissions limit
190 t CO2e
Estimated emissions
118 t CO2e
Under the limit by
72 t CO2e
Estimated penalty a year
None

Estimated from the owner's 2023 Local Law 84 filing, which reports energy by source and floor area by use: Office 65,745 SF; Retail Store 6,000 SF. It applies the coefficients and per-use limits in Department of Buildings rule 1 RCNY 103-14 and Administrative Code 28-320.3.1.1 (as the Department lists them) and the $268 per ton penalty, checked 2026-10-04. It is not the building's Local Law 97 report: that report can count renewable energy credits, solar and storage deductions and, for 2024 and 2025, the law's occupancy group limits where higher, and penalties can be reduced for good faith efforts.

Change these numbers in the Local Law 97 calculator to see what a cut in energy use would do to the penalty.

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NYC Department of Buildings permits

Work permits and build-outs

The Department of Buildings issued no permits for new jobs at the Ely Building in the 12 months to October 2026; the last one was first permitted in July 2025. In the last two years, interior work was permitted on 10 floors (floors 1 to 10). The newest build-out, on floors 1 to 10, the open space and the roof, was first permitted in February 2025 (construction, mechanical, plumbing, sprinklers, structural; filed cost estimate $2.8 million). A sidewalk shed permit here is active until December 29, 2026.

New jobs, last 12 months
0
Initial permits, last 12 months
2
Newest job first permitted
July 2025
Interior build-outs, last 24 months
1
Floors with interior work, last 24 months
1 to 10
Facade and sidewalk jobs, last 24 months
4
Sidewalk shed permit
Active until Dec 29, 2026

Recent build-outs

  • Floors 1 to 10, open space, roofFebruary 2025Construction, Mechanical, Plumbing, Sprinklers, Structural; est. $2.8 million

New jobs by year

  • 20210
  • 20220
  • 20230
  • 20240
  • 20255
  • 2026 to date0

Source: NYC Department of Buildings, DOB NOW: Build Approved Permits, pulled 2026-10-08 (permits issued through 2026-10-06). A job counts once, when its first permit is issued; renewals are not new work. A build-out groups jobs on the same floors first permitted within 120 days of each other. Costs are the estimates filed with the jobs. Jobs filed before DOB NOW (in the older BIS system) are not counted. A permit is approval to do the work; it does not say who the work is for or whether it is finished.

Landmarks Preservation Commission records

Architecture and history

The Ely Building was designed by Mortimer C. Merritt (architect), Sam Acker (builder) and built in 1896-1897 in the neo-Renaissance style. It stands in the Ladies' Mile Historic District, so exterior changes and new signage go through the Landmarks Preservation Commission.

Architect
Mortimer C. Merritt (architect), Sam Acker (builder)
Constructed
1896-1897
Style
neo-Renaissance
Primary material
Steel frame
Built as
Store and lofts

Source: NYC Landmarks Preservation Commission, Individual Landmark and Historic District Building Database on NYC Open Data, pulled 2026-10-08. A designation can cover part of a lot, such as a facade or a lobby interior.

Office space nearby in Union Square

Nothing is listed nearby yet. The labeled examples below show how a space appears; they are not on the market.

What a requirement here looks like

No live requirements for office space in Union Square yet. These labeled examples show what tenants post. List a space in 37 East 18th Street and we match it against every new one automatically.

Before you sign

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Questions about Ely Building

How big is the Ely Building?

The Ely Building has about 67,000 square feet of floor area in total, including 45,000 square feet of office, 13,000 square feet of retail and 9,000 square feet of industrial and storage space, according to NYC PLUTO 26v2. These are the city's estimates for the whole building, not space that is available.

When was the Ely Building built?

The Landmarks Preservation Commission's building records date the Ely Building to 1896-1897, designed by Mortimer C. Merritt (architect), Sam Acker (builder). The building is 10 floors tall.

Who designed the Ely Building?

Mortimer C. Merritt (architect), Sam Acker (builder), according to the Landmarks Preservation Commission's building records, which list the style as neo-Renaissance and its original use as store and lofts.

What is the address of the Ely Building?

The Ely Building is at 37 East 18th Street in Union Square, Manhattan. City records list 37-41 East 18th Street on the same tax lot (BBL 1008470029). A space listed on Leasemark at any of these addresses shows up on this page.

What is the ZIP code of 37 East 18th Street?

37 East 18th Street is in ZIP code 10003, according to the city's tax lot records (NYC PLUTO 26v2) and the Department of Finance's assessment roll. The Ely Building is at 37 East 18th Street, New York, NY 10003, in Union Square.

What is the zoning at the Ely Building?

The lot is in the M1-5M zoning district. PLUTO lists a built floor area ratio (FAR) of 9.72 and a maximum commercial FAR of 5 for this lot. It is inside the Ladies' Mile Historic District, so exterior changes go through the Landmarks Preservation Commission.

What subway station is closest to the Ely Building?

The closest subway station to the Ely Building is 14 St-Union Sq (the 4, 5, 6, L, N, Q, R and W trains), about 800 feet away in a straight line, roughly 3 minutes on foot. The MTA lists it as an accessible station. Also nearby: 23 St-Baruch College (the 6 train), 4 min walk; 23 St (the R and W trains), 5 min walk. Walking times are straight-line estimates; the street route is longer.

Who owns the Ely Building?

The NYC Department of Finance's 2026/27 assessment roll lists EAST 18TH STREET LLC as the owner of record of the Ely Building (BBL 1008470029). Big buildings are usually held through a company set up for that one property, so the name on the roll can differ from the landlord's brand or the managing agent. Deeds and mortgages for the lot are public in ACRIS, the city's property records system.

When was the Ely Building last sold?

The Ely Building last sold in August 2024 for $27 million, according to the deed recorded with the city. 37-41 EAST 18TH STREET REALTY CO., LLC, ANI ERIC COLE, LLC and others sold it to EAST 18TH STREET LLC. That comes to about $403 per square foot of floor area. The deed is ACRIS document 2024083000178001 (BBL 1008470029) in the city's property records. A sale of the company that owns a building is not recorded as a deed, so it would not show there.

What is the energy grade of the Ely Building?

The Ely Building reported an ENERGY STAR score of 98 for calendar year 2023 in its Local Law 84 benchmarking filing. Under Local Law 33, as amended by Local Law 95 of 2019, a score of 85 or higher earns an A, 70 to 84 a B, 55 to 69 a C and under 55 a D, so 98 earns an A. The Department of Buildings assigns the grade a building posts, so the posted label can differ if a filing was corrected. Its site energy use came to 27.9 kBtu per square foot, less than half the national median of 89.8 for a similar property. Its greenhouse gas emissions were about 182 metric tons of CO2e (2.5 kg per square foot).

Does the Ely Building meet Local Law 97?

At its 2023 energy use, the Ely Building comes to about 159 metric tons of CO2e a year under Local Law 97's coefficients, against a limit of 544 tons for 2024 to 2029 (29% of the limit), so it would owe no penalty. From 2030 the limit drops to 190 tons and the same energy use counts as about 118 tons, still under the limit. This is an estimate from the owner's 2023 benchmarking filing using the coefficients and per-use limits in the law and the Department of Buildings rule, at $268 per ton over. It is not the building's Local Law 97 report, which can count credits and deductions this estimate cannot.

Is there construction at the Ely Building?

The Department of Buildings issued no permits for new jobs at the Ely Building in the 12 months to October 2026; the last one was first permitted in July 2025. In the last two years, interior work was permitted on 10 floors (floors 1 to 10). The newest build-out, on floors 1 to 10, the open space and the roof, was first permitted in February 2025 (construction, mechanical, plumbing, sprinklers, structural; filed cost estimate $2.8 million). A sidewalk shed permit here is active until December 29, 2026. These are the Department of Buildings' DOB NOW work permits for tax lot 1008470029. A permit is approval to do the work; it does not say who the work is for or whether it is finished.

What are the property taxes at the Ely Building?

The Department of Finance's 2026/27 assessment roll lists a taxable value of $11 million for the Ely Building. At the Class 4 rate of 10.848% (tax year 2025/26, the latest rate the Department of Finance lists), that is about $1.19 million a year, roughly $17.76 per square foot of floor area, before abatements such as ICAP. The city's property tax records for BBL 1008470029 show the actual bill.

What is the assessed value of the Ely Building?

For tax year 2026/27, the NYC Department of Finance puts the market value of the Ely Building at $26.4 million ($2.65 million of it land) and its assessed value at $11.9 million, the 45% of market value the city assesses for Class 4 property. The city's market value rose 24% from 2022/23 ($21.3 million) to 2026/27.

Are there vacant storefronts at the Ely Building?

Owners registered one storefront at the Ely Building for December 31, 2024, the newest annual filing the city has published, and it was not vacant that day. These are the owners' filings with the Department of Finance under Local Law 157, so a storefront may have come free since. Owners and brokers can list a storefront on Leasemark for free.

Is there office space for lease at the Ely Building?

No space at 37 East 18th Street is listed on Leasemark right now. Owners and brokers can list space here for free, and tenants can post a requirement to be matched when space opens up.

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