ESRT - 500 Mamaroneck Ave
Office in New York City, NY · 500 Mamaroneck Avenue · 10528
At a glance
ESRT - 500 Mamaroneck Ave is a 276,076-square-foot office building at 500 Mamaroneck Avenue in New York City, New York, built in 1986. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 50.0 kBtu/ft² and 1,108 tCO₂e of greenhouse-gas emissions. That score is higher than 63% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 85 (band A) |
| Site EUI | 50.0 kBtu/ft² |
| Source EUI | 103.5 kBtu/ft² |
| GHG emissions | 1,108 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 2,399,036 kWh |
| Water use | 2,948 kgal |
| Gross floor area | 276,076 sq ft |
| Source record | nyc:4407239:2022 |
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
- 500 Mamaroneck Avenue
- City
- New York City
- State
- New York
- ZIP
- 10528
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in New York City · biggest emitters
How does ESRT - 500 Mamaroneck Ave compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. ESRT - 500 Mamaroneck Ave's ENERGY STAR score of 85 compares with an average of 72 across the 2,519 that report a score; it scores higher than 63% of them and lower than 35%. Its site EUI of 50.0 kBtu/ft² is about 22% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.0 kgCO₂e/ft² is about 31% below the group average of 5.8 kgCO₂e/ft².
At 276,076 sq ft, it is about 34% above the average floor area of 205,440 sq ft for those buildings. It was built in 1986, 46 years later than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 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. ESRT - 500 Mamaroneck Ave's 50.0 kBtu/ft² across 276,076 sq ft works out to about 13.8 billion Btu (4,045 MWh-equivalent) in 2022. Its source EUI of 103.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,399,036 kWh of electricity and 2,948 thousand gallons of water for the year.
Which law requires ESRT - 500 Mamaroneck Ave to report its energy use?
ESRT - 500 Mamaroneck Ave 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:4407239:2022). 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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- EPA Sample Office· 275,000 sq ft
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- Office buildings in New York City· 3,384 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 ESRT - 500 Mamaroneck Ave's energy grade?
ESRT - 500 Mamaroneck Ave scores 85 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 ESRT - 500 Mamaroneck Ave use?
Its 2022 site energy-use intensity was 50.0 kBtu/ft² (103.5 kBtu/ft² source) across 276,076 sq ft, including 2,399,036 kWh of electricity.
What are ESRT - 500 Mamaroneck Ave's carbon emissions?
ESRT - 500 Mamaroneck Ave reported 1,108 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2022.
Where is ESRT - 500 Mamaroneck Ave?
ESRT - 500 Mamaroneck Ave is at 500 Mamaroneck Avenue, in New York City, New York 10528.
How big is ESRT - 500 Mamaroneck Ave and when was it built?
ESRT - 500 Mamaroneck Ave has 276,076 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1986 as its year built. It is classed as office.
Is ESRT - 500 Mamaroneck Ave 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, “ESRT - 500 Mamaroneck Ave, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/esrt-500-mamaroneck-ave-8341ee05 (data as of October 2, 2026).