45 HAWTHORNE ST.
Multifamily Housing in New York City, NY · 45 Hawthorne St · 11225
At a glance
45 HAWTHORNE ST. is a 65,984-square-foot multifamily housing building at 45 Hawthorne St in New York City, New York, built in 1936. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 80 out of 100 (grade B), a site energy-use intensity of 70.5 kBtu/ft² and 285 tCO₂e of greenhouse-gas emissions. That score is higher than 63% 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 | 80 (band B) |
| Site EUI | 70.5 kBtu/ft² |
| Source EUI | 92.2 kBtu/ft² |
| GHG emissions | 285 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 200,150 kWh |
| Natural gas | 39,704 therms |
| Water use | 4,619 kgal |
| Gross floor area | 65,984 sq ft |
| Source record | nyc:33568994:2023 |
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
- 45 Hawthorne St
- City
- New York City
- State
- New York
- ZIP
- 11225
- Coordinates
- 40.65734, -73.95866
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 45 HAWTHORNE ST. 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. 45 HAWTHORNE ST.'s ENERGY STAR score of 80 compares with an average of 63 across the 22,829 that report a score; it scores higher than 63% of them and lower than 36%. Its site EUI of 70.5 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 4.3 kgCO₂e/ft² is about 17% below the group average of 5.2 kgCO₂e/ft².
At 65,984 sq ft, it is about 35% below the average floor area of 100,951 sq ft for those buildings. It was built in 1936, 16 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.
What does an ENERGY STAR score of 80 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 80 means the building performs better than about 80% of its national peers. BuildingCensus bands the score into report-card grades; 80 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. 45 HAWTHORNE ST.'s 70.5 kBtu/ft² across 65,984 sq ft works out to about 4.7 billion Btu (1,363 MWh-equivalent) in 2023. Its source EUI of 92.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 200,150 kWh of electricity, 39,704 therms of natural gas and 4,619 thousand gallons of water for the year.
Which law requires 45 HAWTHORNE ST. to report its energy use?
45 HAWTHORNE ST. 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:33568994:2023). 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
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- 87-24 115th Street· 65,976 sq ft · score 72 (B)
- 852 East 7th Street· 65,971 sq ft · score 98 (A)
- 29 Murdock Court· 65,968 sq ft · score 100 (A)
- 49 Murdock Court· 65,968 sq ft · score 99 (A)
- 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 45 HAWTHORNE ST.'s energy grade?
45 HAWTHORNE ST. scores 80 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 45 HAWTHORNE ST. use?
Its 2023 site energy-use intensity was 70.5 kBtu/ft² (92.2 kBtu/ft² source) across 65,984 sq ft, including 200,150 kWh of electricity and 39,704 therms of natural gas.
What are 45 HAWTHORNE ST.'s carbon emissions?
45 HAWTHORNE ST. reported 285 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2023.
Where is 45 HAWTHORNE ST.?
45 HAWTHORNE ST. is at 45 Hawthorne St, in New York City, New York 11225. Its coordinates are 40.65734, -73.95866 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 45 HAWTHORNE ST. and when was it built?
45 HAWTHORNE ST. has 65,984 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1936 as its year built. It is classed as multifamily housing.
Is 45 HAWTHORNE ST. 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, “45 HAWTHORNE ST., New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/45-hawthorne-st-f534b1f8 (data as of October 2, 2026).