Cleo Realty Company, LLC
Multifamily Housing in New York City, NY · 520 Amsterdam Avenue · 10024
At a glance
Cleo Realty Company, LLC is a 103,920-square-foot multifamily housing building at 520 Amsterdam Avenue in New York City, New York, built in 1929. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 65 out of 100 (grade C), a site energy-use intensity of 67.9 kBtu/ft² and 586 tCO₂e of greenhouse-gas emissions. That score is higher than 45% 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 | 65 (band C) |
| Site EUI | 67.9 kBtu/ft² |
| Source EUI | 96.9 kBtu/ft² |
| GHG emissions | 586 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 480,544 kWh |
| Natural gas | 2,314 therms |
| Water use | 2,419 kgal |
| Gross floor area | 103,920 sq ft |
| Source record | nyc:2799344:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 65 | -7 | 67.9 kBtu/ft² | 586 tCO₂e |
| 2023 | 72 | +2 | 61.2 kBtu/ft² | 535 tCO₂e |
| 2022 | 70 | 71.4 kBtu/ft² | 577 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
- 520 Amsterdam Avenue
- City
- New York City
- State
- New York
- ZIP
- 10024
- Coordinates
- 40.78711, -73.97545
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Cleo Realty Company, 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. Cleo Realty Company, LLC's ENERGY STAR score of 65 compares with an average of 63 across the 22,829 that report a score; it scores higher than 45% of them and lower than 54%. Its site EUI of 67.9 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 5.6 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 103,920 sq ft, it is roughly in line with the average floor area of 100,951 sq ft for those buildings. It was built in 1929, 23 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.
How has Cleo Realty Company, LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Cleo Realty Company, LLC, covering report years 2022–2024. Its ENERGY STAR score went from 70 in 2022 to 65 in 2024 (-5 points); its best year on file was 2023, at 72. Site EUI moved from 71.4 kBtu/ft² (2022) to 67.9 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 577 tCO₂e to 586 tCO₂e over the same span (up 2%).
What does an ENERGY STAR score of 65 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 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 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. Cleo Realty Company, LLC's 67.9 kBtu/ft² across 103,920 sq ft works out to about 7.1 billion Btu (2,068 MWh-equivalent) in 2024. Its source EUI of 96.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 480,544 kWh of electricity, 2,314 therms of natural gas and 2,419 thousand gallons of water for the year.
Which law requires Cleo Realty Company, LLC to report its energy use?
Cleo Realty Company, 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 2024 disclosure (source record nyc:2799344:2024). 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.
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- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is Cleo Realty Company, LLC's energy grade?
Cleo Realty Company, LLC scores 65 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Cleo Realty Company, LLC use?
Its 2024 site energy-use intensity was 67.9 kBtu/ft² (96.9 kBtu/ft² source) across 103,920 sq ft, including 480,544 kWh of electricity and 2,314 therms of natural gas.
What are Cleo Realty Company, LLC's carbon emissions?
Cleo Realty Company, LLC reported 586 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2024.
Where is Cleo Realty Company, LLC?
Cleo Realty Company, LLC is at 520 Amsterdam Avenue, in New York City, New York 10024. Its coordinates are 40.78711, -73.97545 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Cleo Realty Company, LLC and when was it built?
Cleo Realty Company, LLC has 103,920 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is Cleo Realty Company, LLC 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, “Cleo Realty Company, LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/cleo-realty-company-llc-f75ba2c1 (data as of October 2, 2026).