50 West 23rd Street
Office in New York City, NY · 37 West 22 Street · 10010
At a glance
50 West 23rd Street is a 98,783-square-foot office building at 37 West 22 Street in New York City, New York, built in 1906. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 91.4 kBtu/ft² and 1,003 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 91.4 kBtu/ft² |
| Source EUI | 245.5 kBtu/ft² |
| GHG emissions | 1,003 tCO₂e |
| GHG intensity | 10.2 kgCO₂e/ft² |
| Electricity | 2,474,145 kWh |
| Natural gas | 5,856 therms |
| Water use | 3,073 kgal |
| Gross floor area | 98,783 sq ft |
| Source record | nyc:8489545:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 91.4 kBtu/ft² | 1,003 tCO₂e | |
| 2023 | 83 | +1 | 42.5 kBtu/ft² | 1,165 tCO₂e |
| 2022 | 82 | 49.4 kBtu/ft² | 1,027 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 37 West 22 Street
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.74144, -73.99138
Within ~1 km
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- One Madison Avenuescore —
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See also: most efficient in New York City · biggest emitters
How does 50 West 23rd Street compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 91.4 kBtu/ft² is about 42% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 10.2 kgCO₂e/ft² is about 75% above the group average of 5.8 kgCO₂e/ft².
At 98,783 sq ft, it is about half of the average floor area of 205,440 sq ft for those buildings. It was built in 1906, 34 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 50 West 23rd Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 50 West 23rd Street, covering report years 2022–2024. Its ENERGY STAR score went from 82 in 2022 to 83 in 2023 (+1 points). Site EUI moved from 49.4 kBtu/ft² (2022) to 91.4 kBtu/ft² (2024), an 85% increase. Reported emissions went from 1,027 tCO₂e to 1,003 tCO₂e over the same span (down 2%).
What does a site EUI of 91.4 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 50 West 23rd Street's 91.4 kBtu/ft² across 98,783 sq ft works out to about 9 billion Btu (2,646 MWh-equivalent) in 2024. Its source EUI of 245.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,474,145 kWh of electricity, 5,856 therms of natural gas and 3,073 thousand gallons of water for the year.
Which law requires 50 West 23rd Street to report its energy use?
50 West 23rd Street reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:8489545:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More office buildings in New York City
- Walter & Samuels - 39 W 37th· 98,456 sq ft · score 91 (A)
- 347 West 36th Street· 98,454 sq ft · EUI 16.2 kBtu/ft²
- 347 West 36th Street· 98,419 sq ft · score 93 (A)
- 60 Charlton (163 VARICK STREET)· 98,410 sq ft · score 54 (D)
- 920 Broadway· 98,394 sq ft · score 86 (A)
- Livingston Management Services: 131 W 35th St· 98,201 sq ft · score 92 (A)
- Office buildings in New York City· 3,384 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 50 West 23rd Street's energy grade?
50 West 23rd Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 91.4 kBtu/ft².
How much energy does 50 West 23rd Street use?
Its 2024 site energy-use intensity was 91.4 kBtu/ft² (245.5 kBtu/ft² source) across 98,783 sq ft, including 2,474,145 kWh of electricity and 5,856 therms of natural gas.
What are 50 West 23rd Street's carbon emissions?
50 West 23rd Street reported 1,003 tCO₂e of greenhouse-gas emissions (10.2 kgCO₂e/ft²) for 2024.
Where is 50 West 23rd Street?
50 West 23rd Street is at 37 West 22 Street, in New York City, New York 10010. Its coordinates are 40.74144, -73.99138 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 50 West 23rd Street and when was it built?
50 West 23rd Street has 98,783 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1906 as its year built. It is classed as office.
Is 50 West 23rd Street covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “50 West 23rd Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/50-west-23rd-street-b9823423 (data as of October 2, 2026).