Park Union
Multifamily Housing in New York City, NY · 910 Union Street · 11215
At a glance
Park Union is a 31,283-square-foot multifamily housing building at 910 Union Street in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 29.8 kBtu/ft² and 107 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 29.8 kBtu/ft² |
| Source EUI | 83.3 kBtu/ft² |
| GHG emissions | 107 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 272,790 kWh |
| Gross floor area | 31,283 sq ft |
| Source record | nyc:26575462:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 29.8 kBtu/ft² | 107 tCO₂e | |
| 2023 | — | 27.7 kBtu/ft² | 94 tCO₂e | |
| 2022 | — | 31.9 kBtu/ft² | 81 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
- 910 Union Street
- City
- New York City
- State
- New York
- ZIP
- 11215
- Coordinates
- 40.67290, -73.97143
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Park Union compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 29.8 kBtu/ft² is about 60% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.4 kgCO₂e/ft² is about 34% below the group average of 5.2 kgCO₂e/ft².
At 31,283 sq ft, it is about 69% below the average floor area of 100,951 sq ft for those buildings. It was built in 1931, 21 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Park Union's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Park Union, covering report years 2022–2024. Site EUI moved from 31.9 kBtu/ft² (2022) to 29.8 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 81 tCO₂e to 107 tCO₂e over the same span (up 33%).
What does a site EUI of 29.8 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. Park Union's 29.8 kBtu/ft² across 31,283 sq ft works out to about 0.9 billion Btu (273 MWh-equivalent) in 2024. Its source EUI of 83.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 272,790 kWh of electricity for the year.
Which law requires Park Union to report its energy use?
Park Union 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:26575462:2024). 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 multifamily housing buildings in New York City
- YHT Management - 21 Meserole St· 31,273 sq ft · score 93 (A)
- A02640 - The Ammann Condominium· 31,268 sq ft · score 90 (A)
- NB:40 Pinehurst Avenue· 31,268 sq ft · score 91 (A)
- Tyler's Bronx Tunnel, LLC· 31,267 sq ft · score 74 (B)
- Stagg Group-2985 Webster Ave· 31,267 sq ft · score 76 (B)
- 347 East 10 Street (WPA Huntington House)· 31,267 sq ft
- Multifamily Housing buildings in New York City· 33,022 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 Park Union's energy grade?
Park Union did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 29.8 kBtu/ft².
How much energy does Park Union use?
Its 2024 site energy-use intensity was 29.8 kBtu/ft² (83.3 kBtu/ft² source) across 31,283 sq ft, including 272,790 kWh of electricity.
What are Park Union's carbon emissions?
Park Union reported 107 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2024.
Where is Park Union?
Park Union is at 910 Union Street, in New York City, New York 11215. Its coordinates are 40.67290, -73.97143 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Park Union and when was it built?
Park Union has 31,283 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as multifamily housing.
Is Park Union 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, “Park Union, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/park-union-f336fda0 (data as of October 2, 2026).