231-235 East 55th Street Condominum (231-235 East 55th)
Multifamily Housing in New York City, NY · 231-235 East 55th · 10022
At a glance
231-235 East 55th Street Condominum (231-235 East 55th) is a 169,438-square-foot multifamily housing building in New York City, New York, built in 2001. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 41 out of 100 (grade D), a site energy-use intensity of 77.9 kBtu/ft² and 1,164 tCO₂e of greenhouse-gas emissions. That score is higher than 25% 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 | 41 (band D) |
| Site EUI | 77.9 kBtu/ft² |
| Source EUI | 131.9 kBtu/ft² |
| GHG emissions | 1,164 tCO₂e |
| GHG intensity | 6.9 kgCO₂e/ft² |
| Electricity | 1,469,056 kWh |
| Natural gas | 9,770 therms |
| Gross floor area | 169,438 sq ft |
| Source record | nyc:3129479:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 41 | -22 | 77.9 kBtu/ft² | 1,164 tCO₂e |
| 2023 | 63 | +13 | 59.7 kBtu/ft² | 902 tCO₂e |
| 2022 | 50 | 79.1 kBtu/ft² | 1,031 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
- 231-235 East 55th
- City
- New York City
- State
- New York
- ZIP
- 10022
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 231-235 East 55th Street Condominum (231-235 East 55th) 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. 231-235 East 55th Street Condominum (231-235 East 55th)'s ENERGY STAR score of 41 compares with an average of 63 across the 22,829 that report a score; it scores higher than 25% of them and lower than 75%. Its site EUI of 77.9 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 6.9 kgCO₂e/ft² is about 32% above the group average of 5.2 kgCO₂e/ft².
At 169,438 sq ft, it is about 68% above the average floor area of 100,951 sq ft for those buildings. It was built in 2001, 49 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 231-235 East 55th Street Condominum (231-235 East 55th)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 231-235 East 55th Street Condominum (231-235 East 55th), covering report years 2022–2024. Its ENERGY STAR score went from 50 in 2022 to 41 in 2024 (-9 points); its best year on file was 2023, at 63. Site EUI moved from 79.1 kBtu/ft² (2022) to 77.9 kBtu/ft² (2024), a 2% decrease. Reported emissions went from 1,031 tCO₂e to 1,164 tCO₂e over the same span (up 13%).
What does an ENERGY STAR score of 41 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 41 means the building performs better than about 41% of its national peers. BuildingCensus bands the score into report-card grades; 41 falls in band D — lowest band (1–54). It sits 34 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. 231-235 East 55th Street Condominum (231-235 East 55th)'s 77.9 kBtu/ft² across 169,438 sq ft works out to about 13.2 billion Btu (3,868 MWh-equivalent) in 2024. Its source EUI of 131.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,469,056 kWh of electricity and 9,770 therms of natural gas for the year.
Which law requires 231-235 East 55th Street Condominum (231-235 East 55th) to report its energy use?
231-235 East 55th Street Condominum (231-235 East 55th) 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:3129479:2024). 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 231-235 East 55th Street Condominum (231-235 East 55th)'s energy grade?
231-235 East 55th Street Condominum (231-235 East 55th) scores 41 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 231-235 East 55th Street Condominum (231-235 East 55th) use?
Its 2024 site energy-use intensity was 77.9 kBtu/ft² (131.9 kBtu/ft² source) across 169,438 sq ft, including 1,469,056 kWh of electricity and 9,770 therms of natural gas.
What are 231-235 East 55th Street Condominum (231-235 East 55th)'s carbon emissions?
231-235 East 55th Street Condominum (231-235 East 55th) reported 1,164 tCO₂e of greenhouse-gas emissions (6.9 kgCO₂e/ft²) for 2024.
Where is 231-235 East 55th Street Condominum (231-235 East 55th)?
231-235 East 55th Street Condominum (231-235 East 55th) is in New York City, New York 10022.
How big is 231-235 East 55th Street Condominum (231-235 East 55th) and when was it built?
231-235 East 55th Street Condominum (231-235 East 55th) has 169,438 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2001 as its year built. It is classed as multifamily housing.
Is 231-235 East 55th Street Condominum (231-235 East 55th) 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, “231-235 East 55th Street Condominum (231-235 East 55th), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/231-235-east-55th-street-condominum-231-235-east-55th-7636d68e (data as of October 2, 2026).