165 W 66 St Apt Corp.
Multifamily Housing in New York City, NY · 165 West 66th Street · 10023
At a glance
165 W 66 St Apt Corp. is a 466,700-square-foot multifamily housing building at 165 West 66th Street in New York City, New York, built in 1962. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 46.2 kBtu/ft² and 1,576 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 46.2 kBtu/ft² |
| Source EUI | 74.6 kBtu/ft² |
| GHG emissions | 1,576 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 2,039,117 kWh |
| Natural gas | 145,889 therms |
| Water use | 12,302 kgal |
| Gross floor area | 466,700 sq ft |
| Source record | nyc:15133691:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 46.2 kBtu/ft² | 1,576 tCO₂e | |
| 2023 | — | 66.1 kBtu/ft² | 2,113 tCO₂e | |
| 2022 | — | 68.4 kBtu/ft² | 2,234 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
- 165 West 66th Street
- City
- New York City
- State
- New York
- ZIP
- 10023
- Coordinates
- 40.77461, -73.98394
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 165 W 66 St Apt Corp. 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 46.2 kBtu/ft² is about 38% 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 35% below the group average of 5.2 kgCO₂e/ft².
At 466,700 sq ft, it is about 362% above the average floor area of 100,951 sq ft for those buildings. It was built in 1962, 10 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.
How has 165 W 66 St Apt Corp.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 165 W 66 St Apt Corp., covering report years 2022–2024. Site EUI moved from 68.4 kBtu/ft² (2022) to 46.2 kBtu/ft² (2024), a 32% decrease. Reported emissions went from 2,234 tCO₂e to 1,576 tCO₂e over the same span (down 29%).
What does a site EUI of 46.2 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. 165 W 66 St Apt Corp.'s 46.2 kBtu/ft² across 466,700 sq ft works out to about 21.6 billion Btu (6,319 MWh-equivalent) in 2024. Its source EUI of 74.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,039,117 kWh of electricity, 145,889 therms of natural gas and 12,302 thousand gallons of water for the year.
Which law requires 165 W 66 St Apt Corp. to report its energy use?
165 W 66 St Apt Corp. 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:15133691:2024). 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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- Milstein - 201 East 87th Street· 465,101 sq ft · score 36 (D)
- DEPM 2568 - 435 East 52nd Street· 464,886 sq ft · score 64 (C)
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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 165 W 66 St Apt Corp.'s energy grade?
165 W 66 St Apt Corp. did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 46.2 kBtu/ft².
How much energy does 165 W 66 St Apt Corp. use?
Its 2024 site energy-use intensity was 46.2 kBtu/ft² (74.6 kBtu/ft² source) across 466,700 sq ft, including 2,039,117 kWh of electricity and 145,889 therms of natural gas.
What are 165 W 66 St Apt Corp.'s carbon emissions?
165 W 66 St Apt Corp. reported 1,576 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2024.
Where is 165 W 66 St Apt Corp.?
165 W 66 St Apt Corp. is at 165 West 66th Street, in New York City, New York 10023. Its coordinates are 40.77461, -73.98394 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 165 W 66 St Apt Corp. and when was it built?
165 W 66 St Apt Corp. has 466,700 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1962 as its year built. It is classed as multifamily housing.
Is 165 W 66 St Apt Corp. 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, “165 W 66 St Apt Corp., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/165-w-66-st-apt-corp-e97624a7 (data as of October 2, 2026).