Buchbinder: 1 Union Square West
Office in New York City, NY · 1 Union Square W · 10003
At a glance
Buchbinder: 1 Union Square West is a 56,003-square-foot office building in New York City, New York, built in 1900. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 48.8 kBtu/ft² and 240 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 48.8 kBtu/ft² |
| Source EUI | 103.9 kBtu/ft² |
| GHG emissions | 240 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 493,852 kWh |
| Natural gas | 9,933 therms |
| Water use | 539 kgal |
| Gross floor area | 56,003 sq ft |
| Source record | nyc:4402529:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 48.8 kBtu/ft² | 240 tCO₂e | |
| 2022 | — | 38.3 kBtu/ft² | 178 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
- 1 Union Square W
- City
- New York City
- State
- New York
- ZIP
- 10003
- Coordinates
- 40.73532, -73.99165
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Buchbinder: 1 Union Square West compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 48.8 kBtu/ft² is about 24% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.3 kgCO₂e/ft² is about 26% below the group average of 5.8 kgCO₂e/ft².
At 56,003 sq ft, it is about 73% below the average floor area of 205,440 sq ft for those buildings. It was built in 1900, 40 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Buchbinder: 1 Union Square West's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Buchbinder: 1 Union Square West, covering report years 2022–2023. Site EUI moved from 38.3 kBtu/ft² (2022) to 48.8 kBtu/ft² (2023), an 27% increase. Reported emissions went from 178 tCO₂e to 240 tCO₂e over the same span (up 35%).
What does a site EUI of 48.8 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. Buchbinder: 1 Union Square West's 48.8 kBtu/ft² across 56,003 sq ft works out to about 2.7 billion Btu (801 MWh-equivalent) in 2023. Its source EUI of 103.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 493,852 kWh of electricity, 9,933 therms of natural gas and 539 thousand gallons of water for the year.
Which law requires Buchbinder: 1 Union Square West to report its energy use?
Buchbinder: 1 Union Square West 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:4402529:2023). 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 office buildings in New York City
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- 7 W 30th St· 55,850 sq ft · EUI 54.4 kBtu/ft²
- Helgar Realty Co, LLC· 55,826 sq ft · score 95 (A)
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- Office buildings in New York City· 3,384 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 Buchbinder: 1 Union Square West's energy grade?
Buchbinder: 1 Union Square West did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 48.8 kBtu/ft².
How much energy does Buchbinder: 1 Union Square West use?
Its 2023 site energy-use intensity was 48.8 kBtu/ft² (103.9 kBtu/ft² source) across 56,003 sq ft, including 493,852 kWh of electricity and 9,933 therms of natural gas.
What are Buchbinder: 1 Union Square West's carbon emissions?
Buchbinder: 1 Union Square West reported 240 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2023.
Where is Buchbinder: 1 Union Square West?
Buchbinder: 1 Union Square West is in New York City, New York 10003. Its coordinates are 40.73532, -73.99165 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Buchbinder: 1 Union Square West and when was it built?
Buchbinder: 1 Union Square West has 56,003 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1900 as its year built. It is classed as office.
Is Buchbinder: 1 Union Square West 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, “Buchbinder: 1 Union Square West, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/buchbinder-1-union-square-west-00062b5d (data as of October 2, 2026).