521 West 23rd Street
Multifamily Housing in New York City, NY · 10011
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 77.0 kBtu/ft² |
| Source EUI | 116.4 kBtu/ft² |
| GHG emissions | 304 tCO₂e |
| GHG intensity | 6.6 kgCO₂e/ft² |
| Electricity | 289,840 kWh |
| Natural gas | 0 therms |
| Gross floor area | 45,816 sq ft |
| Source record | nyc:6168917:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 77.0 kBtu/ft² | 304 tCO₂e | |
| 2023 | — | 66.7 kBtu/ft² | 257 tCO₂e | |
| 2022 | — | 41.4 kBtu/ft² | 146 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 521 West 23rd Street
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74813, -74.00519
Within ~1 km
Nearby benchmarked buildings
- Hudson Yards Cogen Campusscore —
Other · 7,739,076 sq ft
- Manhattan Westscore —
Other · 4,153,954 sq ft
- 20-30 Hudson Yardsscore —
Office · 3,810,623 sq ft
- 50 Hudson Yardsscore 76
Office · 2,944,455 sq ft
- The Spiral - 66 Hudson Boulevardscore 82
Office · 2,830,000 sq ft
- 111 Eighth Avenuescore —
Office · 2,375,706 sq ft
See also: most efficient in New York City · biggest emitters
Frequently asked questions
What is 521 West 23rd Street's energy grade?
521 West 23rd Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 77.0 kBtu/ft².
How much energy does 521 West 23rd Street use?
Its 2024 site energy-use intensity was 77.0 kBtu/ft² (116.4 kBtu/ft² source) across 45,816 sq ft, including 289,840 kWh of electricity and 0 therms of natural gas.
What are 521 West 23rd Street's carbon emissions?
521 West 23rd Street reported 304 tCO₂e of greenhouse-gas emissions (6.6 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:6168917:2024.