Windsor Apartments Inc II
Multifamily Housing in New York City, NY · 4901 Henry Hudson Pkwy · 10471
At a glance
Windsor Apartments Inc II is a 167,108-square-foot multifamily housing building at 4901 Henry Hudson Pkwy in New York City, New York, built in 1961. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 58 out of 100 (grade C), a site energy-use intensity of 79.6 kBtu/ft² and 1,017 tCO₂e of greenhouse-gas emissions. That score is higher than 39% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 58 (band C) |
| Site EUI | 79.6 kBtu/ft² |
| Source EUI | 112.8 kBtu/ft² |
| GHG emissions | 1,017 tCO₂e |
| GHG intensity | 6.1 kgCO₂e/ft² |
| Electricity | 882,916 kWh |
| Water use | 7,461 kgal |
| Gross floor area | 167,108 sq ft |
| Source record | nyc:10070179:2022 |
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
- 4901 Henry Hudson Pkwy
- City
- New York City
- State
- New York
- ZIP
- 10471
- Coordinates
- 40.89686, -73.90826
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Windsor Apartments Inc II 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. Windsor Apartments Inc II's ENERGY STAR score of 58 compares with an average of 63 across the 22,829 that report a score; it scores higher than 39% of them and lower than 60%. Its site EUI of 79.6 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 6.1 kgCO₂e/ft² is about 17% above the group average of 5.2 kgCO₂e/ft².
At 167,108 sq ft, it is about 66% above the average floor area of 100,951 sq ft for those buildings. It was built in 1961, 9 years later 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.
What does an ENERGY STAR score of 58 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 58 means the building performs better than about 58% of its national peers. BuildingCensus bands the score into report-card grades; 58 falls in band C — below median (55–69). It sits 17 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. Windsor Apartments Inc II's 79.6 kBtu/ft² across 167,108 sq ft works out to about 13.3 billion Btu (3,898 MWh-equivalent) in 2022. Its source EUI of 112.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 882,916 kWh of electricity and 7,461 thousand gallons of water for the year.
Which law requires Windsor Apartments Inc II to report its energy use?
Windsor Apartments Inc II 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 2022 disclosure (source record nyc:10070179:2022). 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.
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- 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 Windsor Apartments Inc II's energy grade?
Windsor Apartments Inc II scores 58 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2022 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Windsor Apartments Inc II use?
Its 2022 site energy-use intensity was 79.6 kBtu/ft² (112.8 kBtu/ft² source) across 167,108 sq ft, including 882,916 kWh of electricity.
What are Windsor Apartments Inc II's carbon emissions?
Windsor Apartments Inc II reported 1,017 tCO₂e of greenhouse-gas emissions (6.1 kgCO₂e/ft²) for 2022.
Where is Windsor Apartments Inc II?
Windsor Apartments Inc II is at 4901 Henry Hudson Pkwy, in New York City, New York 10471. Its coordinates are 40.89686, -73.90826 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Windsor Apartments Inc II and when was it built?
Windsor Apartments Inc II has 167,108 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1961 as its year built. It is classed as multifamily housing.
Is Windsor Apartments Inc II covered by Local Law 84 (LL84)?
Yes — it appears in the 2022 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, “Windsor Apartments Inc II, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/windsor-apartments-inc-ii-8ec9d558 (data as of October 2, 2026).