345E64
Multifamily Housing in New York City, NY · 345 East 64th Street · 10065
At a glance
345E64 is a 53,257-square-foot multifamily housing building at 345 East 64th Street in New York City, New York, built in 1996. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 49 out of 100 (grade D), a site energy-use intensity of 71.3 kBtu/ft² and 301 tCO₂e of greenhouse-gas emissions. That score is higher than 31% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 49 (band D) |
| Site EUI | 71.3 kBtu/ft² |
| Source EUI | 144.5 kBtu/ft² |
| GHG emissions | 301 tCO₂e |
| GHG intensity | 6.0 kgCO₂e/ft² |
| Electricity | 585,524 kWh |
| Natural gas | 15,857 therms |
| Water use | 2,577 kgal |
| Gross floor area | 53,257 sq ft |
| Source record | nyc:2817568:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 49 | -41 | 71.3 kBtu/ft² | 301 tCO₂e |
| 2022 | 90 | 48.9 kBtu/ft² | 177 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
- 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 345E64 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. 345E64's ENERGY STAR score of 49 compares with an average of 63 across the 22,829 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 71.3 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 6.0 kgCO₂e/ft² is about 15% above the group average of 5.2 kgCO₂e/ft².
At 53,257 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.
How has 345E64's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 345E64, covering report years 2022–2023. Its ENERGY STAR score went from 90 in 2022 to 49 in 2023 (-41 points); its best year on file was 2022, at 90. Site EUI moved from 48.9 kBtu/ft² (2022) to 71.3 kBtu/ft² (2023), an 46% increase. Reported emissions went from 177 tCO₂e to 301 tCO₂e over the same span (up 71%).
What does an ENERGY STAR score of 49 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 49 means the building performs better than about 49% of its national peers. BuildingCensus bands the score into report-card grades; 49 falls in band D — lowest band (1–54). It sits 26 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. 345E64's 71.3 kBtu/ft² across 53,257 sq ft works out to about 3.8 billion Btu (1,113 MWh-equivalent) in 2023. Its source EUI of 144.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 585,524 kWh of electricity, 15,857 therms of natural gas and 2,577 thousand gallons of water for the year.
Which law requires 345E64 to report its energy use?
345E64 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 2023 disclosure (source record nyc:2817568:2023). 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
- 3780 Bronx Boulevard· 53,250 sq ft · score 90 (A)
- 210 W 107th St· 53,250 sq ft · score 100 (A)
- 135 E 74th St Condo (135 East 74th Street)· 53,250 sq ft · score 38 (D)
- BRG - 40-94 Denman St· 53,250 sq ft · score 66 (C)
- 135 East 74th Street· 53,250 sq ft · score 15 (D)
- 210 West 107th Street· 53,250 sq ft · score 64 (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 345E64's energy grade?
345E64 scores 49 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 345E64 use?
Its 2023 site energy-use intensity was 71.3 kBtu/ft² (144.5 kBtu/ft² source) across 53,257 sq ft, including 585,524 kWh of electricity and 15,857 therms of natural gas.
What are 345E64's carbon emissions?
345E64 reported 301 tCO₂e of greenhouse-gas emissions (6.0 kgCO₂e/ft²) for 2023.
Where is 345E64?
345E64 is at 345 East 64th Street, 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 345E64 and when was it built?
345E64 has 53,257 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1996 as its year built. It is classed as multifamily housing.
Is 345E64 covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “345E64, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/345e64-5e2f6fa5 (data as of October 2, 2026).