341 Chelsea Manhattan NY HAMP
Hotel in New York City, NY · 108 W. 24th Street · 10011
At a glance
341 Chelsea Manhattan NY HAMP is a 53,696-square-foot hotel at 108 W. 24th Street in New York City, New York, built in 2003. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 76.5 kBtu/ft² and 376 tCO₂e of greenhouse-gas emissions. That score is higher than 78% of the 853 scored hotel buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 77 (band B) |
| Site EUI | 76.5 kBtu/ft² |
| Source EUI | 163.5 kBtu/ft² |
| GHG emissions | 376 tCO₂e |
| GHG intensity | 7.0 kgCO₂e/ft² |
| Electricity | 748,080 kWh |
| Natural gas | 15,548 therms |
| Water use | 6,154 kgal |
| Gross floor area | 53,696 sq ft |
| Source record | nyc:3762097:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | +7 | 76.5 kBtu/ft² | 376 tCO₂e |
| 2023 | 70 | -8 | 86.2 kBtu/ft² | 399 tCO₂e |
| 2022 | 78 | 76.4 kBtu/ft² | 308 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
- 108 W. 24th Street
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74381, -73.99291
Within ~1 km
Nearby benchmarked buildings
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- 11 Madison Avenuescore 77
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- (71003A) Herald Square Macy'sscore 70
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See also: most efficient in New York City · biggest emitters
How does 341 Chelsea Manhattan NY HAMP compare with other hotel buildings in New York City?
The latest disclosures cover 970 hotel buildings in New York City, out of 48,310 buildings citywide. 341 Chelsea Manhattan NY HAMP's ENERGY STAR score of 77 compares with an average of 50 across the 853 that report a score; it scores higher than 78% of them and lower than 21%. Its site EUI of 76.5 kBtu/ft² is about 19% below the average of 94.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 7.0 kgCO₂e/ft² is about 10% below the group average of 7.8 kgCO₂e/ft².
At 53,696 sq ft, it is about 61% below the average floor area of 137,256 sq ft for those buildings. It was built in 2003, 28 years later than the group's average year built (1975). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has 341 Chelsea Manhattan NY HAMP's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 341 Chelsea Manhattan NY HAMP, covering report years 2022–2024. Its ENERGY STAR score went from 78 in 2022 to 77 in 2024 (-1 points); its best year on file was 2022, at 78. Site EUI moved from 76.4 kBtu/ft² (2022) to 76.5 kBtu/ft² (2024), an 0% increase. Reported emissions went from 308 tCO₂e to 376 tCO₂e over the same span (up 22%).
What does an ENERGY STAR score of 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 falls in band B — above median (70–84). 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. 341 Chelsea Manhattan NY HAMP's 76.5 kBtu/ft² across 53,696 sq ft works out to about 4.1 billion Btu (1,204 MWh-equivalent) in 2024. Its source EUI of 163.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 748,080 kWh of electricity, 15,548 therms of natural gas and 6,154 thousand gallons of water for the year.
Which law requires 341 Chelsea Manhattan NY HAMP to report its energy use?
341 Chelsea Manhattan NY HAMP 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:3762097:2024). 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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- Hotel buildings in New York City· 970 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 341 Chelsea Manhattan NY HAMP's energy grade?
341 Chelsea Manhattan NY HAMP scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 341 Chelsea Manhattan NY HAMP use?
Its 2024 site energy-use intensity was 76.5 kBtu/ft² (163.5 kBtu/ft² source) across 53,696 sq ft, including 748,080 kWh of electricity and 15,548 therms of natural gas.
What are 341 Chelsea Manhattan NY HAMP's carbon emissions?
341 Chelsea Manhattan NY HAMP reported 376 tCO₂e of greenhouse-gas emissions (7.0 kgCO₂e/ft²) for 2024.
Where is 341 Chelsea Manhattan NY HAMP?
341 Chelsea Manhattan NY HAMP is at 108 W. 24th Street, in New York City, New York 10011. Its coordinates are 40.74381, -73.99291 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 341 Chelsea Manhattan NY HAMP and when was it built?
341 Chelsea Manhattan NY HAMP has 53,696 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2003 as its year built. It is classed as hotel.
Is 341 Chelsea Manhattan NY HAMP 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, “341 Chelsea Manhattan NY HAMP, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/341-chelsea-manhattan-ny-hamp-556beae8 (data as of October 2, 2026).