45-55 Realty LLC
Multifamily Housing in New York City, NY · 45 Hawthorne Street · 11225
At a glance
45-55 Realty LLC is a 65,984-square-foot multifamily housing building at 45 Hawthorne Street in New York City, New York, built in 1936. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 79.1 kBtu/ft² and 301 tCO₂e of greenhouse-gas emissions. That score is higher than 79% 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 | 92 (band A) |
| Site EUI | 79.1 kBtu/ft² |
| Source EUI | 103.1 kBtu/ft² |
| GHG emissions | 301 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 221,747 kWh |
| Water use | 4,612 kgal |
| Gross floor area | 65,984 sq ft |
| Source record | nyc:2793844:2022 |
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
- 45 Hawthorne Street
- City
- New York City
- State
- New York
- ZIP
- 11225
- Coordinates
- 40.65734, -73.95866
Within ~1 km
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How does 45-55 Realty LLC 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. 45-55 Realty LLC's ENERGY STAR score of 92 compares with an average of 63 across the 22,829 that report a score; it scores higher than 79% of them and lower than 20%. Its site EUI of 79.1 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 4.6 kgCO₂e/ft² is about 12% 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 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 falls in band A — high performer (85–100). 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. 45-55 Realty LLC's 79.1 kBtu/ft² across 65,984 sq ft works out to about 5.2 billion Btu (1,530 MWh-equivalent) in 2022. Its source EUI of 103.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 221,747 kWh of electricity and 4,612 thousand gallons of water for the year.
Which law requires 45-55 Realty LLC to report its energy use?
45-55 Realty LLC 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:2793844:2022). 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)
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Frequently asked questions
What is 45-55 Realty LLC's energy grade?
45-55 Realty LLC scores 92 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 45-55 Realty LLC use?
Its 2022 site energy-use intensity was 79.1 kBtu/ft² (103.1 kBtu/ft² source) across 65,984 sq ft, including 221,747 kWh of electricity.
What are 45-55 Realty LLC's carbon emissions?
45-55 Realty LLC reported 301 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2022.
Where is 45-55 Realty LLC?
45-55 Realty LLC is at 45 Hawthorne Street, 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 45-55 Realty LLC and when was it built?
45-55 Realty LLC has 65,984 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1936 as its year built. It is classed as multifamily housing.
Is 45-55 Realty LLC 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, “45-55 Realty LLC, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/45-55-realty-llc-0d8ee849 (data as of October 2, 2026).