220 East 23rd Street
Office in New York City, NY · 10010
At a glance
220 East 23rd Street is a 150,355-square-foot office building in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 50.7 kBtu/ft² and 575 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 50.7 kBtu/ft² |
| Source EUI | 85.1 kBtu/ft² |
| GHG emissions | 575 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 802,007 kWh |
| Natural gas | 48,907 therms |
| Water use | 1,261 kgal |
| Gross floor area | 150,355 sq ft |
| Source record | nyc:2719421:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 50.7 kBtu/ft² | 575 tCO₂e | |
| 2023 | 91 | +5 | 44.8 kBtu/ft² | 514 tCO₂e |
| 2022 | 86 | 54.9 kBtu/ft² | 536 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
- 220 East 23rd Street
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.73855, -73.98250
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 220 East 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 50.7 kBtu/ft² is about 21% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.8 kgCO₂e/ft² is about 34% below the group average of 5.8 kgCO₂e/ft².
At 150,355 sq ft, it is about 27% below the average floor area of 205,440 sq ft for those buildings. It was built in 1931, 9 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 220 East 23rd Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 220 East 23rd Street, covering report years 2022–2024. Its ENERGY STAR score went from 86 in 2022 to 91 in 2023 (+5 points). Site EUI moved from 54.9 kBtu/ft² (2022) to 50.7 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 536 tCO₂e to 575 tCO₂e over the same span (up 7%).
What does a site EUI of 50.7 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. 220 East 23rd Street's 50.7 kBtu/ft² across 150,355 sq ft works out to about 7.6 billion Btu (2,234 MWh-equivalent) in 2024. Its source EUI of 85.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 802,007 kWh of electricity, 48,907 therms of natural gas and 1,261 thousand gallons of water for the year.
Which law requires 220 East 23rd Street to report its energy use?
220 East 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:2719421:2024). 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
- Solo Energy:200 WEST 41 STREET.· 150,338 sq ft · score 90 (A)
- DCAS_1050_130 Stuyvesant Place Office· 150,300 sq ft · score 64 (C)
- 160 Broadway - Manhattan· 150,000 sq ft · EUI 70.8 kBtu/ft²
- Restoration: 1958 Fulton Street· 150,000 sq ft · score 92 (A)
- 635 Madison· 149,881 sq ft · score 66 (C)
- 620 Fifth Avenue (Bld 3)· 149,749 sq ft
- 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 220 East 23rd Street's energy grade?
220 East 23rd Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 50.7 kBtu/ft².
How much energy does 220 East 23rd Street use?
Its 2024 site energy-use intensity was 50.7 kBtu/ft² (85.1 kBtu/ft² source) across 150,355 sq ft, including 802,007 kWh of electricity and 48,907 therms of natural gas.
What are 220 East 23rd Street's carbon emissions?
220 East 23rd Street reported 575 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2024.
Where is 220 East 23rd Street?
220 East 23rd Street is in New York City, New York 10010. Its coordinates are 40.73855, -73.98250 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 220 East 23rd Street and when was it built?
220 East 23rd Street has 150,355 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as office.
Is 220 East 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, “220 East 23rd Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/220-east-23rd-street-27de477a (data as of October 2, 2026).