421 West 21st Street
Multifamily Housing in New York City, NY · 10011
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 29 (band D) |
| Site EUI | 98.0 kBtu/ft² |
| Source EUI | 142.1 kBtu/ft² |
| GHG emissions | 173 tCO₂e |
| GHG intensity | 6.5 kgCO₂e/ft² |
| Electricity | 175,827 kWh |
| Natural gas | 20,278 therms |
| Water use | 977 kgal |
| Gross floor area | 26,800 sq ft |
| Source record | nyc:33165099:2023 |
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
- 421 West 21st Street
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74556, -74.00309
Within ~1 km
Nearby benchmarked buildings
- Manhattan Westscore —
Other · 4,153,954 sq ft
- Penn Southscore 95
Multifamily Housing · 3,391,963 sq ft
- 111 Eighth Avenuescore —
Office · 2,375,706 sq ft
Office · 2,091,862 sq ft
- 601 West 26 St - Starrett Lehighscore 93
Office · 1,939,488 sq ft
Office · 1,878,106 sq ft
See also: most efficient in New York City · biggest emitters
Frequently asked questions
What is 421 West 21st Street's energy grade?
421 West 21st Street scores 29 out of 100 on ENERGY STAR — band D (Lowest band (1–54)) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 421 West 21st Street use?
Its 2023 site energy-use intensity was 98.0 kBtu/ft² (142.1 kBtu/ft² source) across 26,800 sq ft, including 175,827 kWh of electricity and 20,278 therms of natural gas.
What are 421 West 21st Street's carbon emissions?
421 West 21st Street reported 173 tCO₂e of greenhouse-gas emissions (6.5 kgCO₂e/ft²) for 2023. 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:33165099:2023.