155 West 23rd Street (153 WEST 23 STREET)
Office in New York City, NY · 153 WEST 23 STREET · 10013
At a glance
155 West 23rd Street (153 WEST 23 STREET) is a 69,863-square-foot office building in New York City, New York, built in 1935. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 50.4 kBtu/ft² and 363 tCO₂e of greenhouse-gas emissions. That score is higher than 67% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 87 (band A) |
| Site EUI | 50.4 kBtu/ft² |
| Source EUI | 114.8 kBtu/ft² |
| GHG emissions | 363 tCO₂e |
| GHG intensity | 5.2 kgCO₂e/ft² |
| Electricity | 731,244 kWh |
| Natural gas | 18 therms |
| Water use | 452 kgal |
| Gross floor area | 69,863 sq ft |
| Source record | nyc:21324118:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 87 | +2 | 50.4 kBtu/ft² | 363 tCO₂e |
| 2023 | 85 | +1 | 54.6 kBtu/ft² | 370 tCO₂e |
| 2022 | 84 | 39.6 kBtu/ft² | 231 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
- 153 WEST 23 STREET
- City
- New York City
- State
- New York
- ZIP
- 10013
- Coordinates
- 40.74354, -73.99428
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 155 West 23rd Street (153 WEST 23 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. 155 West 23rd Street (153 WEST 23 STREET)'s ENERGY STAR score of 87 compares with an average of 72 across the 2,519 that report a score; it scores higher than 67% of them and lower than 30%. Its site EUI of 50.4 kBtu/ft² is about 22% 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 5.2 kgCO₂e/ft² is about 10% below the group average of 5.8 kgCO₂e/ft².
At 69,863 sq ft, it is about 66% below the average floor area of 205,440 sq ft for those buildings. It was built in 1935, 5 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 155 West 23rd Street (153 WEST 23 STREET)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 155 West 23rd Street (153 WEST 23 STREET), covering report years 2022–2024. Its ENERGY STAR score went from 84 in 2022 to 87 in 2024 (+3 points). Site EUI moved from 39.6 kBtu/ft² (2022) to 50.4 kBtu/ft² (2024), an 27% increase. Reported emissions went from 231 tCO₂e to 363 tCO₂e over the same span (up 57%).
What does an ENERGY STAR score of 87 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In New York City, 43% of scored buildings are at 75 or above.
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. 155 West 23rd Street (153 WEST 23 STREET)'s 50.4 kBtu/ft² across 69,863 sq ft works out to about 3.5 billion Btu (1,032 MWh-equivalent) in 2024. Its source EUI of 114.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 731,244 kWh of electricity, 18 therms of natural gas and 452 thousand gallons of water for the year.
Which law requires 155 West 23rd Street (153 WEST 23 STREET) to report its energy use?
155 West 23rd Street (153 WEST 23 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:21324118:2024). 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.
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Frequently asked questions
What is 155 West 23rd Street (153 WEST 23 STREET)'s energy grade?
155 West 23rd Street (153 WEST 23 STREET) scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 155 West 23rd Street (153 WEST 23 STREET) use?
Its 2024 site energy-use intensity was 50.4 kBtu/ft² (114.8 kBtu/ft² source) across 69,863 sq ft, including 731,244 kWh of electricity and 18 therms of natural gas.
What are 155 West 23rd Street (153 WEST 23 STREET)'s carbon emissions?
155 West 23rd Street (153 WEST 23 STREET) reported 363 tCO₂e of greenhouse-gas emissions (5.2 kgCO₂e/ft²) for 2024.
Where is 155 West 23rd Street (153 WEST 23 STREET)?
155 West 23rd Street (153 WEST 23 STREET) is in New York City, New York 10013. Its coordinates are 40.74354, -73.99428 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 155 West 23rd Street (153 WEST 23 STREET) and when was it built?
155 West 23rd Street (153 WEST 23 STREET) has 69,863 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1935 as its year built. It is classed as office.
Is 155 West 23rd Street (153 WEST 23 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, “155 West 23rd Street (153 WEST 23 STREET), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/155-west-23rd-street-153-west-23-street-410c2ae9 (data as of October 2, 2026).