645 West 44th St
Self-Storage Facility in New York City, NY · 10036
At a glance
645 West 44th St is a 211,176-square-foot self-storage facility in New York City, New York, built in 1950. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 34.7 kBtu/ft² and 606 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 34.7 kBtu/ft² |
| Source EUI | 68.7 kBtu/ft² |
| GHG emissions | 606 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 1,139,148 kWh |
| Natural gas | 34,475 therms |
| Water use | 151 kgal |
| Gross floor area | 211,176 sq ft |
| Source record | nyc:2654634:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 34.7 kBtu/ft² | 606 tCO₂e | |
| 2022 | — | 25.8 kBtu/ft² | 361 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
- 645 West 44th St
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.76257, -73.99839
Within ~1 km
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- 606 West 57th Streetscore 69
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See also: most efficient in New York City · biggest emitters
How does 645 West 44th 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 34.7 kBtu/ft² is about 64% above the average of 21.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 2.9 kgCO₂e/ft² is about 71% above the group average of 1.7 kgCO₂e/ft².
At 211,176 sq ft, it is about twice the average floor area of 98,872 sq ft for those buildings. It was built in 1950, 33 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 645 West 44th St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 645 West 44th St, covering report years 2022–2023. Site EUI moved from 25.8 kBtu/ft² (2022) to 34.7 kBtu/ft² (2023), an 34% increase. Reported emissions went from 361 tCO₂e to 606 tCO₂e over the same span (up 68%).
What does a site EUI of 34.7 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. 645 West 44th St's 34.7 kBtu/ft² across 211,176 sq ft works out to about 7.3 billion Btu (2,148 MWh-equivalent) in 2023. Its source EUI of 68.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,139,148 kWh of electricity, 34,475 therms of natural gas and 151 thousand gallons of water for the year.
Which law requires 645 West 44th St to report its energy use?
645 West 44th 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 2023 disclosure (source record nyc:2654634:2023). 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.
More self-storage facility buildings in New York City
- MMS #1986· 211,175 sq ft · EUI 34.1 kBtu/ft²
- 327B Realty: 347 Walnut - 327 Realty: 863 E 141 Campus (Parent)· 210,362 sq ft · EUI 1.1 kBtu/ft²
- U-Haul Moving and Storage of Rome (873063)· 202,193 sq ft · EUI 7.3 kBtu/ft²
- CubeSmart (NYC) - 936· 197,389 sq ft · EUI 18.9 kBtu/ft²
- 327 Walnut/863 E 141· 196,534 sq ft · EUI 8.5 kBtu/ft²
- 501 10 Avenue (ZYP)· 196,000 sq ft · EUI 98.3 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 645 West 44th St's energy grade?
645 West 44th St did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 34.7 kBtu/ft².
How much energy does 645 West 44th St use?
Its 2023 site energy-use intensity was 34.7 kBtu/ft² (68.7 kBtu/ft² source) across 211,176 sq ft, including 1,139,148 kWh of electricity and 34,475 therms of natural gas.
What are 645 West 44th St's carbon emissions?
645 West 44th St reported 606 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2023.
Where is 645 West 44th St?
645 West 44th St is in New York City, New York 10036. Its coordinates are 40.76257, -73.99839 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 645 West 44th St and when was it built?
645 West 44th St has 211,176 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1950 as its year built. It is classed as self-storage facility.
Is 645 West 44th St covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “645 West 44th St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/645-west-44th-st-8a95cccb (data as of October 2, 2026).