531 WEST 21 STREET - [531-539 West 21st St]
Self-Storage Facility in New York City, NY · 531 WEST 21 STREET · 10011
At a glance
531 WEST 21 STREET - [531-539 West 21st St] is a 91,592-square-foot self-storage facility in New York City, New York, built in 1921. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 6.5 kBtu/ft² and 59 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 6.5 kBtu/ft² |
| Source EUI | 15.4 kBtu/ft² |
| GHG emissions | 59 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 131,984 kWh |
| Natural gas | 1,410 therms |
| Gross floor area | 91,592 sq ft |
| Source record | nyc:2587898:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 6.5 kBtu/ft² | 59 tCO₂e | |
| 2023 | — | 6.8 kBtu/ft² | 51 tCO₂e | |
| 2022 | — | 7.3 kBtu/ft² | 37 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
- 531 WEST 21 STREET
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74692, -74.00630
Within ~1 km
Nearby benchmarked buildings
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- 50 Hudson Yardsscore 76
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- The Spiral - 66 Hudson Boulevardscore 82
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- 111 Eighth Avenuescore —
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- 601 West 26 St - Starrett Lehighscore 93
Office · 1,939,488 sq ft
See also: most efficient in New York City · biggest emitters
How does 531 WEST 21 STREET - [531-539 West 21st St] compare with other self-storage facility buildings in New York City?
The latest disclosures cover 481 self-storage facility buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 6.5 kBtu/ft² is about 69% below the average of 21.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.7 kgCO₂e/ft² is about 62% below the group average of 1.7 kgCO₂e/ft².
At 91,592 sq ft, it is roughly in line with the average floor area of 98,872 sq ft for those buildings. It was built in 1921, 62 years earlier than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 3,050 self-storage facility buildings average an ENERGY STAR score of 75 and a site EUI of 9.4 kBtu/ft².
How has 531 WEST 21 STREET - [531-539 West 21st St]'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 531 WEST 21 STREET - [531-539 West 21st St], covering report years 2022–2024. Site EUI moved from 7.3 kBtu/ft² (2022) to 6.5 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 37 tCO₂e to 59 tCO₂e over the same span (up 62%).
What does a site EUI of 6.5 kBtu/ft² mean?
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. 531 WEST 21 STREET - [531-539 West 21st St]'s 6.5 kBtu/ft² across 91,592 sq ft works out to about 0.6 billion Btu (174 MWh-equivalent) in 2024. Its source EUI of 15.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 131,984 kWh of electricity and 1,410 therms of natural gas for the year.
Which law requires 531 WEST 21 STREET - [531-539 West 21st St] to report its energy use?
531 WEST 21 STREET - [531-539 West 21st St] 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:2587898:2024). 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 self-storage facility buildings in New York City
- CubeSmart (NYC) - 931· 91,430 sq ft · EUI 14.6 kBtu/ft²
- CubeSmart (NYC) - 931· 91,430 sq ft · score 59 (C)
- CubeSmart (NYC) - 4582· 91,052 sq ft · EUI 20.9 kBtu/ft²
- 979 Brook Avenue· 90,800 sq ft · EUI 13.4 kBtu/ft²
- CubeSmart (NYC) - 813· 90,660 sq ft · EUI 6.3 kBtu/ft²
- U-Haul Moving and Storage at Teall Ave (873060)· 90,625 sq ft · EUI 26.3 kBtu/ft²
- Self-Storage Facility buildings in New York City· 481 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 531 WEST 21 STREET - [531-539 West 21st St]'s energy grade?
531 WEST 21 STREET - [531-539 West 21st St] did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 6.5 kBtu/ft².
How much energy does 531 WEST 21 STREET - [531-539 West 21st St] use?
Its 2024 site energy-use intensity was 6.5 kBtu/ft² (15.4 kBtu/ft² source) across 91,592 sq ft, including 131,984 kWh of electricity and 1,410 therms of natural gas.
What are 531 WEST 21 STREET - [531-539 West 21st St]'s carbon emissions?
531 WEST 21 STREET - [531-539 West 21st St] reported 59 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2024.
Where is 531 WEST 21 STREET - [531-539 West 21st St]?
531 WEST 21 STREET - [531-539 West 21st St] is in New York City, New York 10011. Its coordinates are 40.74692, -74.00630 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 531 WEST 21 STREET - [531-539 West 21st St] and when was it built?
531 WEST 21 STREET - [531-539 West 21st St] has 91,592 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1921 as its year built. It is classed as self-storage facility.
Is 531 WEST 21 STREET - [531-539 West 21st St] 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, “531 WEST 21 STREET - [531-539 West 21st St], New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/531-west-21-street-531-539-west-21st-st-fd75cf26 (data as of October 2, 2026).