1933 Union Street
Multifamily Housing in New York City, NY · 11233
At a glance
1933 Union Street is a 96,048-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 81 out of 100 (grade B), a site energy-use intensity of 75.6 kBtu/ft² and 441 tCO₂e of greenhouse-gas emissions. That score is higher than 64% 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 | 81 (band B) |
| Site EUI | 75.6 kBtu/ft² |
| Source EUI | 95.7 kBtu/ft² |
| GHG emissions | 441 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 263,510 kWh |
| Natural gas | 63,579 therms |
| Gross floor area | 96,048 sq ft |
| Source record | nyc:10823414:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 81 | -7 | 75.6 kBtu/ft² | 441 tCO₂e |
| 2023 | 88 | -7 | 67.6 kBtu/ft² | 393 tCO₂e |
| 2022 | 95 | 62.0 kBtu/ft² | 344 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
- 1933 Union Street
- City
- New York City
- State
- New York
- ZIP
- 11233
- Coordinates
- 40.66745, -73.92419
Within ~1 km
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How does 1933 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. 1933 Union Street's ENERGY STAR score of 81 compares with an average of 63 across the 22,829 that report a score; it scores higher than 64% of them and lower than 34%. Its site EUI of 75.6 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 4.6 kgCO₂e/ft² is about 12% below the group average of 5.2 kgCO₂e/ft².
At 96,048 sq ft, it is roughly in line with 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 1933 Union Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 1933 Union Street, covering report years 2022–2024. Its ENERGY STAR score went from 95 in 2022 to 81 in 2024 (-14 points); its best year on file was 2022, at 95. Site EUI moved from 62.0 kBtu/ft² (2022) to 75.6 kBtu/ft² (2024), an 22% increase. Reported emissions went from 344 tCO₂e to 441 tCO₂e over the same span (up 28%).
What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 1933 Union Street's 75.6 kBtu/ft² across 96,048 sq ft works out to about 7.3 billion Btu (2,128 MWh-equivalent) in 2024. Its source EUI of 95.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 263,510 kWh of electricity and 63,579 therms of natural gas for the year.
Which law requires 1933 Union Street to report its energy use?
1933 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:10823414:2024). 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
- 435 East 57th St· 96,038 sq ft · score 100 (A)
- Samson - 15 / 17 Park Avenue - PARENT· 96,022 sq ft · EUI 83.4 kBtu/ft²
- Navy Green R3· 96,014 sq ft · score 87 (A)
- Andrews: 105 Hudson St.· 96,005 sq ft · EUI 46.7 kBtu/ft²
- 145 West 96th Street· 96,000 sq ft · score 78 (B)
- 4149-4155 Kings Highway· 96,000 sq ft · score 83 (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 1933 Union Street's energy grade?
1933 Union Street scores 81 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 1933 Union Street use?
Its 2024 site energy-use intensity was 75.6 kBtu/ft² (95.7 kBtu/ft² source) across 96,048 sq ft, including 263,510 kWh of electricity and 63,579 therms of natural gas.
What are 1933 Union Street's carbon emissions?
1933 Union Street reported 441 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2024.
Where is 1933 Union Street?
1933 Union Street is in New York City, New York 11233. Its coordinates are 40.66745, -73.92419 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 1933 Union Street and when was it built?
1933 Union Street has 96,048 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 1933 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, “1933 Union Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/1933-union-street-ea966ec6 (data as of October 2, 2026).