100 WINTHROP LLC
Multifamily Housing in New York City, NY · 100 WINTHROP STREET · 11225
At a glance
100 WINTHROP LLC is a 47,400-square-foot multifamily housing building at 100 WINTHROP STREET in New York City, New York, built in 1939. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 73.9 kBtu/ft² and 222 tCO₂e of greenhouse-gas emissions. That score is higher than 62% 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 | 79 (band B) |
| Site EUI | 73.9 kBtu/ft² |
| Source EUI | 98.8 kBtu/ft² |
| GHG emissions | 222 tCO₂e |
| GHG intensity | 4.7 kgCO₂e/ft² |
| Electricity | 168,875 kWh |
| Natural gas | 29,252 therms |
| Water use | 2,854 kgal |
| Gross floor area | 47,400 sq ft |
| Source record | nyc:6573321:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | -7 | 73.9 kBtu/ft² | 222 tCO₂e |
| 2023 | 86 | +5 | 66.4 kBtu/ft² | 198 tCO₂e |
| 2022 | 81 | 74.5 kBtu/ft² | 207 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
- 100 WINTHROP STREET
- City
- New York City
- State
- New York
- ZIP
- 11225
- Coordinates
- 40.65667, -73.95706
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 100 WINTHROP LLC 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. 100 WINTHROP LLC's ENERGY STAR score of 79 compares with an average of 63 across the 22,829 that report a score; it scores higher than 62% of them and lower than 37%. Its site EUI of 73.9 kBtu/ft² is roughly in line with 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 4.7 kgCO₂e/ft² is about 10% below the group average of 5.2 kgCO₂e/ft².
At 47,400 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1939, 13 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 100 WINTHROP LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 100 WINTHROP LLC, covering report years 2022–2024. Its ENERGY STAR score went from 81 in 2022 to 79 in 2024 (-2 points); its best year on file was 2023, at 86. Site EUI moved from 74.5 kBtu/ft² (2022) to 73.9 kBtu/ft² (2024), a 1% decrease. Reported emissions went from 207 tCO₂e to 222 tCO₂e over the same span (up 7%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 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. 100 WINTHROP LLC's 73.9 kBtu/ft² across 47,400 sq ft works out to about 3.5 billion Btu (1,027 MWh-equivalent) in 2024. Its source EUI of 98.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 168,875 kWh of electricity, 29,252 therms of natural gas and 2,854 thousand gallons of water for the year.
Which law requires 100 WINTHROP LLC to report its energy use?
100 WINTHROP LLC 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:6573321:2024). 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
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- Lovett - 82-16 34th Avenue· 47,397 sq ft · score 99 (A)
- Building 4 21-85 34 Ave - 4430818· 47,397 sq ft
- UMDC: 1677 Lexington Ave· 47,396 sq ft · score 66 (C)
- 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 100 WINTHROP LLC's energy grade?
100 WINTHROP LLC scores 79 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 100 WINTHROP LLC use?
Its 2024 site energy-use intensity was 73.9 kBtu/ft² (98.8 kBtu/ft² source) across 47,400 sq ft, including 168,875 kWh of electricity and 29,252 therms of natural gas.
What are 100 WINTHROP LLC's carbon emissions?
100 WINTHROP LLC reported 222 tCO₂e of greenhouse-gas emissions (4.7 kgCO₂e/ft²) for 2024.
Where is 100 WINTHROP LLC?
100 WINTHROP LLC is at 100 WINTHROP STREET, in New York City, New York 11225. Its coordinates are 40.65667, -73.95706 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 100 WINTHROP LLC and when was it built?
100 WINTHROP LLC has 47,400 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1939 as its year built. It is classed as multifamily housing.
Is 100 WINTHROP LLC 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, “100 WINTHROP LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/100-winthrop-llc-6e677080 (data as of October 2, 2026).