2106 Union Street
Multifamily Housing in New York City, NY · 11212
At a glance
2106 Union Street is a 31,880-square-foot multifamily housing building in New York City, New York, built in 1930. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 71 out of 100 (grade B), a site energy-use intensity of 61.4 kBtu/ft² and 130 tCO₂e of greenhouse-gas emissions. That score is higher than 52% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 71 (band B) |
| Site EUI | 61.4 kBtu/ft² |
| Source EUI | 87.2 kBtu/ft² |
| GHG emissions | 130 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 121,388 kWh |
| Natural gas | 15,430 therms |
| Water use | 2,433 kgal |
| Gross floor area | 31,880 sq ft |
| Source record | nyc:6702451:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 71 | -12 | 61.4 kBtu/ft² | 130 tCO₂e |
| 2023 | 83 | +13 | 51.3 kBtu/ft² | 117 tCO₂e |
| 2022 | 70 | 64.7 kBtu/ft² | 134 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
- 2106 Union Street
- City
- New York City
- State
- New York
- ZIP
- 11212
- Coordinates
- 40.66481, -73.92121
Within ~1 km
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How does 2106 Union Street 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. 2106 Union Street's ENERGY STAR score of 71 compares with an average of 63 across the 22,829 that report a score; it scores higher than 52% of them and lower than 47%. Its site EUI of 61.4 kBtu/ft² is about 18% 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 4.1 kgCO₂e/ft² is about 22% below the group average of 5.2 kgCO₂e/ft².
At 31,880 sq ft, it is about 68% below the average floor area of 100,951 sq ft for those buildings. It was built in 1930, 22 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 2106 Union Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 2106 Union Street, covering report years 2022–2024. Its ENERGY STAR score went from 70 in 2022 to 71 in 2024 (+1 points); its best year on file was 2023, at 83. Site EUI moved from 64.7 kBtu/ft² (2022) to 61.4 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 134 tCO₂e to 130 tCO₂e over the same span (down 3%).
What does an ENERGY STAR score of 71 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 71 means the building performs better than about 71% of its national peers. BuildingCensus bands the score into report-card grades; 71 falls in band B — above median (70–84). It sits 4 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% of scored buildings are at 75 or above.
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. 2106 Union Street's 61.4 kBtu/ft² across 31,880 sq ft works out to about 2 billion Btu (574 MWh-equivalent) in 2024. Its source EUI of 87.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 121,388 kWh of electricity, 15,430 therms of natural gas and 2,433 thousand gallons of water for the year.
Which law requires 2106 Union Street to report its energy use?
2106 Union Street 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:6702451:2024). 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
- 417 West 120th Street· 31,878 sq ft · score 100 (A)
- 131 Prince Cooperative Inc.· 31,876 sq ft · EUI 37.8 kBtu/ft²
- Highbridge Community HDFC - 1444 Shakespeare ave· 31,875 sq ft · score 21 (D)
- Tristar - 1065 Nelson Avenue· 31,875 sq ft · score 100 (A)
- 2769 UNIVERSITY AVE.· 31,875 sq ft · score 100 (A)
- Cornell pace - 2769 University Avenue· 31,875 sq ft · score 84 (B)
- 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 2106 Union Street's energy grade?
2106 Union Street scores 71 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2106 Union Street use?
Its 2024 site energy-use intensity was 61.4 kBtu/ft² (87.2 kBtu/ft² source) across 31,880 sq ft, including 121,388 kWh of electricity and 15,430 therms of natural gas.
What are 2106 Union Street's carbon emissions?
2106 Union Street reported 130 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 2024.
Where is 2106 Union Street?
2106 Union Street is in New York City, New York 11212. Its coordinates are 40.66481, -73.92121 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 2106 Union Street and when was it built?
2106 Union Street has 31,880 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is 2106 Union Street 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, “2106 Union Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/2106-union-street-257e0da9 (data as of October 2, 2026).