345 East 64th Street
Multifamily Housing in New York City, NY · 10065
At a glance
345 East 64th Street is a 55,095-square-foot multifamily housing building in New York City, New York, built in 1996. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 21 out of 100 (grade D), a site energy-use intensity of 62.0 kBtu/ft² and 334 tCO₂e of greenhouse-gas emissions. That score is higher than 12% 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 | 21 (band D) |
| Site EUI | 62.0 kBtu/ft² |
| Source EUI | 143.3 kBtu/ft² |
| GHG emissions | 334 tCO₂e |
| GHG intensity | 6.1 kgCO₂e/ft² |
| Electricity | 721,680 kWh |
| Natural gas | 9,537 therms |
| Water use | 1,688 kgal |
| Gross floor area | 55,095 sq ft |
| Source record | nyc:48556594:2024 |
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
- 345 East 64th Street
- City
- New York City
- State
- New York
- ZIP
- 10065
- Coordinates
- 40.76328, -73.96096
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 345 East 64th 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. 345 East 64th Street's ENERGY STAR score of 21 compares with an average of 63 across the 22,829 that report a score; it scores higher than 12% of them and lower than 87%. Its site EUI of 62.0 kBtu/ft² is about 17% 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 6.1 kgCO₂e/ft² is about 17% above the group average of 5.2 kgCO₂e/ft².
At 55,095 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1996, 44 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 21 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 21 means the building performs better than about 21% of its national peers. BuildingCensus bands the score into report-card grades; 21 falls in band D — lowest band (1–54). It sits 54 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. 345 East 64th Street's 62.0 kBtu/ft² across 55,095 sq ft works out to about 3.4 billion Btu (1,001 MWh-equivalent) in 2024. Its source EUI of 143.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 721,680 kWh of electricity, 9,537 therms of natural gas and 1,688 thousand gallons of water for the year.
Which law requires 345 East 64th Street to report its energy use?
345 East 64th 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:48556594:2024). 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
- AKAM - 125 West 22nd Street· 55,087 sq ft · score 69 (C)
- 106 MARCY PLACE· 55,084 sq ft · score 31 (D)
- 106-108 Marcy Place· 55,084 sq ft
- SW - 80 Seaman Ave· 55,080 sq ft · score 25 (D)
- 1654 East 13th Street· 55,080 sq ft · score 83 (B)
- Campus - 204-218 East 165 Street· 55,080 sq ft · score 1 (D)
- 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 345 East 64th Street's energy grade?
345 East 64th Street scores 21 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 345 East 64th Street use?
Its 2024 site energy-use intensity was 62.0 kBtu/ft² (143.3 kBtu/ft² source) across 55,095 sq ft, including 721,680 kWh of electricity and 9,537 therms of natural gas.
What are 345 East 64th Street's carbon emissions?
345 East 64th Street reported 334 tCO₂e of greenhouse-gas emissions (6.1 kgCO₂e/ft²) for 2024.
Where is 345 East 64th Street?
345 East 64th Street is in New York City, New York 10065. Its coordinates are 40.76328, -73.96096 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 345 East 64th Street and when was it built?
345 East 64th Street has 55,095 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1996 as its year built. It is classed as multifamily housing.
Is 345 East 64th 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, “345 East 64th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/345-east-64th-street-ff106eb2 (data as of October 2, 2026).