The Mayflower - 245 East 87th Street
Multifamily Housing in New York City, NY · 245 East 87th Street · 10128
At a glance
The Mayflower - 245 East 87th Street is a 153,083-square-foot multifamily housing building in New York City, New York, built in 1966. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 6 out of 100 (grade D), a site energy-use intensity of 118.4 kBtu/ft² and 1,136 tCO₂e of greenhouse-gas emissions. That score is higher than 5% 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 | 6 (band D) |
| Site EUI | 118.4 kBtu/ft² |
| Source EUI | 156.2 kBtu/ft² |
| GHG emissions | 1,136 tCO₂e |
| GHG intensity | 7.4 kgCO₂e/ft² |
| Electricity | 819,096 kWh |
| Natural gas | 153,227 therms |
| Water use | 4,464 kgal |
| Gross floor area | 153,083 sq ft |
| Source record | nyc:3112875:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 6 | -36 | 118.4 kBtu/ft² | 1,136 tCO₂e |
| 2023 | 42 | +5 | 75.1 kBtu/ft² | 766 tCO₂e |
| 2022 | 37 | 85.6 kBtu/ft² | 787 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
- 245 East 87th Street
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.77889, -73.95125
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does The Mayflower - 245 East 87th Street 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. The Mayflower - 245 East 87th Street's ENERGY STAR score of 6 compares with an average of 63 across the 22,829 that report a score; it scores higher than 5% of them and lower than 94%. Its site EUI of 118.4 kBtu/ft² is about 58% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.4 kgCO₂e/ft² is about 43% above the group average of 5.2 kgCO₂e/ft².
At 153,083 sq ft, it is about 52% above the average floor area of 100,951 sq ft for those buildings. It was built in 1966, 14 years later 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 The Mayflower - 245 East 87th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for The Mayflower - 245 East 87th Street, covering report years 2022–2024. Its ENERGY STAR score went from 37 in 2022 to 6 in 2024 (-31 points); its best year on file was 2023, at 42. Site EUI moved from 85.6 kBtu/ft² (2022) to 118.4 kBtu/ft² (2024), an 38% increase. Reported emissions went from 787 tCO₂e to 1,136 tCO₂e over the same span (up 44%).
What does an ENERGY STAR score of 6 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 6 means the building performs better than about 6% of its national peers. BuildingCensus bands the score into report-card grades; 6 falls in band D — lowest band (1–54). It sits 69 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. The Mayflower - 245 East 87th Street's 118.4 kBtu/ft² across 153,083 sq ft works out to about 18.1 billion Btu (5,312 MWh-equivalent) in 2024. Its source EUI of 156.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 819,096 kWh of electricity, 153,227 therms of natural gas and 4,464 thousand gallons of water for the year.
Which law requires The Mayflower - 245 East 87th Street to report its energy use?
The Mayflower - 245 East 87th Street 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:3112875:2024). 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.
More multifamily housing buildings in New York City
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- Copy of DEPM 1240 - 1040 Fifth Ave· 153,037 sq ft · score 53 (D)
- DEPM 1240 - 1040 Fifth Ave· 153,037 sq ft · EUI 72.8 kBtu/ft²
- Orsid - 333 East 68 Street· 153,003 sq ft · EUI 57.0 kBtu/ft²
- Whittier Hall - 1230 Amsterdam Avenue· 153,000 sq ft · score 100 (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 The Mayflower - 245 East 87th Street's energy grade?
The Mayflower - 245 East 87th Street scores 6 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Mayflower - 245 East 87th Street use?
Its 2024 site energy-use intensity was 118.4 kBtu/ft² (156.2 kBtu/ft² source) across 153,083 sq ft, including 819,096 kWh of electricity and 153,227 therms of natural gas.
What are The Mayflower - 245 East 87th Street's carbon emissions?
The Mayflower - 245 East 87th Street reported 1,136 tCO₂e of greenhouse-gas emissions (7.4 kgCO₂e/ft²) for 2024.
Where is The Mayflower - 245 East 87th Street?
The Mayflower - 245 East 87th Street is in New York City, New York 10128. Its coordinates are 40.77889, -73.95125 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Mayflower - 245 East 87th Street and when was it built?
The Mayflower - 245 East 87th Street has 153,083 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1966 as its year built. It is classed as multifamily housing.
Is The Mayflower - 245 East 87th Street 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, “The Mayflower - 245 East 87th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-mayflower-245-east-87th-street-7a519b63 (data as of October 2, 2026).