Keron Realty Corp
Multifamily Housing in New York City, NY · 180 East 52 Street · 11203
At a glance
Keron Realty Corp is a 31,480-square-foot multifamily housing building at 180 East 52 Street in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 55 out of 100 (grade C), a site energy-use intensity of 79.3 kBtu/ft² and 153 tCO₂e of greenhouse-gas emissions. That score is higher than 36% 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 | 55 (band C) |
| Site EUI | 79.3 kBtu/ft² |
| Source EUI | 101.8 kBtu/ft² |
| GHG emissions | 153 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 97,925 kWh |
| Natural gas | 21,625 therms |
| Water use | 1,193 kgal |
| Gross floor area | 31,480 sq ft |
| Source record | nyc:6200172:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 55 | +2 | 79.3 kBtu/ft² | 153 tCO₂e |
| 2023 | 53 | -3 | 78.5 kBtu/ft² | 149 tCO₂e |
| 2022 | 56 | 83.3 kBtu/ft² | 150 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
- 180 East 52 Street
- City
- New York City
- State
- New York
- ZIP
- 11203
- Coordinates
- 40.65699, -73.92900
Within ~1 km
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How does Keron Realty Corp 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. Keron Realty Corp's ENERGY STAR score of 55 compares with an average of 63 across the 22,829 that report a score; it scores higher than 36% of them and lower than 63%. Its site EUI of 79.3 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 4.9 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 31,480 sq ft, it is about 69% below the average floor area of 100,951 sq ft for those buildings. It was built in 1928, 24 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 Keron Realty Corp's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Keron Realty Corp, covering report years 2022–2024. Its ENERGY STAR score went from 56 in 2022 to 55 in 2024 (-1 points); its best year on file was 2022, at 56. Site EUI moved from 83.3 kBtu/ft² (2022) to 79.3 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 150 tCO₂e to 153 tCO₂e over the same span (up 2%).
What does an ENERGY STAR score of 55 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 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 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. Keron Realty Corp's 79.3 kBtu/ft² across 31,480 sq ft works out to about 2.5 billion Btu (732 MWh-equivalent) in 2024. Its source EUI of 101.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 97,925 kWh of electricity, 21,625 therms of natural gas and 1,193 thousand gallons of water for the year.
Which law requires Keron Realty Corp to report its energy use?
Keron Realty Corp 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:6200172:2024). 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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Frequently asked questions
What is Keron Realty Corp's energy grade?
Keron Realty Corp scores 55 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 Keron Realty Corp use?
Its 2024 site energy-use intensity was 79.3 kBtu/ft² (101.8 kBtu/ft² source) across 31,480 sq ft, including 97,925 kWh of electricity and 21,625 therms of natural gas.
What are Keron Realty Corp's carbon emissions?
Keron Realty Corp reported 153 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2024.
Where is Keron Realty Corp?
Keron Realty Corp is at 180 East 52 Street, in New York City, New York 11203. Its coordinates are 40.65699, -73.92900 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Keron Realty Corp and when was it built?
Keron Realty Corp has 31,480 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as multifamily housing.
Is Keron Realty Corp 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, “Keron Realty Corp, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/keron-realty-corp-3e9c0a90 (data as of October 2, 2026).