The Chelsea Landmark
Multifamily Housing in New York City, NY · 55 W. 25Th Street · 10010
At a glance
The Chelsea Landmark is a 412,833-square-foot multifamily housing building at 55 W. 25Th Street in New York City, New York, built in 2005. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 6 out of 100 (grade D), a site energy-use intensity of 90.9 kBtu/ft² and 3,118 tCO₂e of greenhouse-gas emissions. That score is higher than 5% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 6 (band D) |
| Site EUI | 90.9 kBtu/ft² |
| Source EUI | 172.4 kBtu/ft² |
| GHG emissions | 3,118 tCO₂e |
| GHG intensity | 7.5 kgCO₂e/ft² |
| Electricity | 5,325,615 kWh |
| Natural gas | 193,377 therms |
| Water use | 14,277 kgal |
| Gross floor area | 412,833 sq ft |
| Source record | nyc:4412083:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 6 | -10 | 90.9 kBtu/ft² | 3,118 tCO₂e |
| 2023 | 16 | -20 | 71.1 kBtu/ft² | 2,528 tCO₂e |
| 2022 | 36 | 55.0 kBtu/ft² | 1,772 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
- 55 W. 25Th Street
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.74364, -73.99057
Within ~1 km
Nearby benchmarked buildings
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- PENN 1 (LL97)score —
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- PENN 1 (Offices)score —
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- 11 Madison Avenuescore 77
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- (71003A) Herald Square Macy'sscore 70
Retail Store · 2,192,088 sq ft
See also: most efficient in New York City · biggest emitters
How does The Chelsea Landmark compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. The Chelsea Landmark's ENERGY STAR score of 6 compares with an average of 63 across the 22,829 that report a score; it scores higher than 5% of them and lower than 94%. Its site EUI of 90.9 kBtu/ft² is about 21% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.5 kgCO₂e/ft² is about 45% above the group average of 5.2 kgCO₂e/ft².
At 412,833 sq ft, it is about 309% above the average floor area of 100,951 sq ft for those buildings. It was built in 2005, 53 years later than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has The Chelsea Landmark's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for The Chelsea Landmark, covering report years 2022–2024. Its ENERGY STAR score went from 36 in 2022 to 6 in 2024 (-30 points); its best year on file was 2022, at 36. Site EUI moved from 55.0 kBtu/ft² (2022) to 90.9 kBtu/ft² (2024), an 65% increase. Reported emissions went from 1,772 tCO₂e to 3,118 tCO₂e over the same span (up 76%).
What does an ENERGY STAR score of 6 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 6 means the building performs better than about 6% of its national peers. BuildingCensus bands the score into report-card grades; 6 falls in band D — lowest band (1–54). It sits 69 points below 75, the threshold for ENERGY STAR certification. 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. The Chelsea Landmark's 90.9 kBtu/ft² across 412,833 sq ft works out to about 37.5 billion Btu (10,998 MWh-equivalent) in 2024. Its source EUI of 172.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,325,615 kWh of electricity, 193,377 therms of natural gas and 14,277 thousand gallons of water for the year.
Which law requires The Chelsea Landmark to report its energy use?
The Chelsea Landmark 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:4412083:2024). 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 multifamily housing buildings in New York City
- 595 Dean - 3428601· 412,694 sq ft
- GJUF II Hanson LLC (1 Hanson Pl)· 412,439 sq ft · score 27 (D)
- 1351 New York· 412,128 sq ft · score 12 (D)
- 1350 New York Avenue· 412,128 sq ft · score 29 (D)
- Orsid - 61 7th Avenue· 412,000 sq ft · score 29 (D)
- Tysen Park (BBL: 5039830001)· 411,600 sq ft · score 94 (A)
- Multifamily Housing buildings in New York City· 33,022 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 The Chelsea Landmark's energy grade?
The Chelsea Landmark scores 6 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Chelsea Landmark use?
Its 2024 site energy-use intensity was 90.9 kBtu/ft² (172.4 kBtu/ft² source) across 412,833 sq ft, including 5,325,615 kWh of electricity and 193,377 therms of natural gas.
What are The Chelsea Landmark's carbon emissions?
The Chelsea Landmark reported 3,118 tCO₂e of greenhouse-gas emissions (7.5 kgCO₂e/ft²) for 2024.
Where is The Chelsea Landmark?
The Chelsea Landmark is at 55 W. 25Th Street, in New York City, New York 10010. Its coordinates are 40.74364, -73.99057 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Chelsea Landmark and when was it built?
The Chelsea Landmark has 412,833 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2005 as its year built. It is classed as multifamily housing.
Is The Chelsea Landmark 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, “The Chelsea Landmark, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-chelsea-landmark-4298212f (data as of October 2, 2026).