21 Chelsea
Multifamily Housing in New York City, NY · 120 West 21st Street · 10011
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 72 (band B) |
| Site EUI | 61.1 kBtu/ft² |
| Source EUI | 102.9 kBtu/ft² |
| GHG emissions | 806 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 1,133,681 kWh |
| Natural gas | 67,974 therms |
| Water use | 5,716 kgal |
| Gross floor area | 174,621 sq ft |
| Source record | nyc:4040952:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 72 | +5 | 61.1 kBtu/ft² | 806 tCO₂e |
| 2023 | 67 | -7 | 63.2 kBtu/ft² | 800 tCO₂e |
| 2022 | 74 | 64.6 kBtu/ft² | 719 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 owner listed in the disclosure.
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Location
- Address
- 120 West 21st Street
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74196, -73.99457
Within ~1 km
Nearby benchmarked buildings
- Penn Southscore 95
Multifamily Housing · 3,391,963 sq ft
- 111 Eighth Avenuescore —
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- 11 Madison Avenuescore 77
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- One Madison Avenuescore —
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- ConEd Irving Placescore 55
Office · 1,255,204 sq ft
- Benchmarking Group - 3score —
College/University · 1,221,878 sq ft
See also: most efficient in New York City · biggest emitters
Frequently asked questions
What is 21 Chelsea's energy grade?
21 Chelsea scores 72 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 21 Chelsea use?
Its 2024 site energy-use intensity was 61.1 kBtu/ft² (102.9 kBtu/ft² source) across 174,621 sq ft, including 1,133,681 kWh of electricity and 67,974 therms of natural gas.
What are 21 Chelsea's carbon emissions?
21 Chelsea reported 806 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 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.
Dataset updated . Source: Energy and Water Data Disclosure disclosure, record nyc:4040952:2024.