28-40 West 23rd Street - Building 2
Office in New York City, NY · 28 West 23rd Street · 10010
At a glance
28-40 West 23rd Street - Building 2 is a 238,838-square-foot office building at 28 West 23rd Street in New York City, New York, built in 1911. It is listed in the 2024 Energy and Water Data Disclosure disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year. Its most recent reported figures are from 2023, when it scored 77 out of 100 on ENERGY STAR with a site EUI of 64.2 kBtu/ft².
No energy data reported for 2024
28-40 West 23rd Street - Building 2 appears in the 2024 Energy and Water Data Disclosure disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year. Earlier reported years are in the table below.
Floor area on file: 238,838 sq ft · Built 1911
Source record nyc:12066151:2024
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | — | — | |
| 2023 | 77 | +1 | 64.2 kBtu/ft² | 1,533 tCO₂e |
| 2022 | 76 | 66.1 kBtu/ft² | 1,330 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 28 West 23rd Street
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.74200, -73.99067
Within ~1 km
Nearby benchmarked buildings
- Penn Southscore 95
Multifamily Housing · 3,391,963 sq ft
- ESRT - Empire State Buildingscore 78
Office · 2,852,257 sq ft
- 11 Madison Avenuescore 77
Office · 2,228,574 sq ft
- 51 Madisonscore 79
Office · 1,485,386 sq ft
- One Madison Avenuescore —
Office · 1,339,997 sq ft
- ConEd Irving Placescore 55
Office · 1,255,204 sq ft
See also: most efficient in New York City · biggest emitters
How has 28-40 West 23rd Street - Building 2's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 28-40 West 23rd Street - Building 2, covering report years 2022–2024. Its ENERGY STAR score went from 76 in 2022 to 77 in 2023 (+1 points). Site EUI moved from 66.1 kBtu/ft² (2022) to 64.2 kBtu/ft² (2023), a 3% decrease. Reported emissions went from 1,330 tCO₂e to 1,533 tCO₂e over the same span (up 15%).
Which law requires 28-40 West 23rd Street - Building 2 to report its energy use?
28-40 West 23rd Street - Building 2 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:12066151:2024). 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
- 150 Varick Street· 238,681 sq ft · EUI 62.8 kBtu/ft²
- 360 Lexington Avenue· 238,294 sq ft · score 79 (B)
- 360 Lexington Ave· 238,293 sq ft · score 80 (B)
- Dawning Real Estate: 1150 South Ave· 236,557 sq ft · score 95 (A)
- Tata Innovation Center· 235,758 sq ft · score 91 (A)
- 245 5th Avenue· 235,610 sq ft · score 94 (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 28-40 West 23rd Street - Building 2's energy grade?
28-40 West 23rd Street - Building 2 has no grade: it did not report energy data for 2024. The 2024 Energy and Water Data Disclosure disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is 28-40 West 23rd Street - Building 2?
28-40 West 23rd Street - Building 2 is at 28 West 23rd Street, in New York City, New York 10010. Its coordinates are 40.74200, -73.99067 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
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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, “28-40 West 23rd Street - Building 2, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/28-40-west-23rd-street-building-2-10666693 (data as of October 2, 2026).