237E20
Multifamily Housing in New York City, NY · 237 East 20th Street · 10017
At a glance
237E20 is a 76,220-square-foot multifamily housing building at 237 East 20th Street in New York City, New York, built in 1929. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 35 out of 100 (grade D), a site energy-use intensity of 98.5 kBtu/ft² and 590 tCO₂e of greenhouse-gas emissions. That score is higher than 20% 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 | 35 (band D) |
| Site EUI | 98.5 kBtu/ft² |
| Source EUI | 121.2 kBtu/ft² |
| GHG emissions | 590 tCO₂e |
| GHG intensity | 7.8 kgCO₂e/ft² |
| Electricity | 269,584 kWh |
| Natural gas | 1,954 therms |
| Gross floor area | 76,220 sq ft |
| Source record | nyc:2817525:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 35 | -14 | 98.5 kBtu/ft² | 590 tCO₂e |
| 2023 | 49 | -3 | 86.2 kBtu/ft² | 515 tCO₂e |
| 2022 | 52 | 93.7 kBtu/ft² | 535 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
- 237 East 20th Street
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.73646, -73.98329
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 237E20 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. 237E20's ENERGY STAR score of 35 compares with an average of 63 across the 22,829 that report a score; it scores higher than 20% of them and lower than 79%. Its site EUI of 98.5 kBtu/ft² is about 32% 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 7.8 kgCO₂e/ft² is about 49% above the group average of 5.2 kgCO₂e/ft².
At 76,220 sq ft, it is about 24% below 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 237E20's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 237E20, covering report years 2022–2024. Its ENERGY STAR score went from 52 in 2022 to 35 in 2024 (-17 points); its best year on file was 2022, at 52. Site EUI moved from 93.7 kBtu/ft² (2022) to 98.5 kBtu/ft² (2024), an 5% increase. Reported emissions went from 535 tCO₂e to 590 tCO₂e over the same span (up 10%).
What does an ENERGY STAR score of 35 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 35 means the building performs better than about 35% of its national peers. BuildingCensus bands the score into report-card grades; 35 falls in band D — lowest band (1–54). It sits 40 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. 237E20's 98.5 kBtu/ft² across 76,220 sq ft works out to about 7.5 billion Btu (2,200 MWh-equivalent) in 2024. Its source EUI of 121.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 269,584 kWh of electricity and 1,954 therms of natural gas for the year.
Which law requires 237E20 to report its energy use?
237E20 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:2817525:2024). 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
- 615 W. 186TH ST.· 76,212 sq ft · score 49 (D)
- (4303) - Clinton Hill Apts (165 Clinton Avenue)· 76,200 sq ft · score 1 (D)
- 165 Clinton Ave· 76,200 sq ft · EUI 35.6 kBtu/ft²
- Halstead - 214 Riverside Drive NY, NY 10025· 76,187 sq ft · score 100 (A)
- 41-29 24th STREET - 44329· 76,186 sq ft · score 86 (A)
- Parkside Terrace: 3211 Parkside Place· 76,166 sq ft · score 93 (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 237E20's energy grade?
237E20 scores 35 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 237E20 use?
Its 2024 site energy-use intensity was 98.5 kBtu/ft² (121.2 kBtu/ft² source) across 76,220 sq ft, including 269,584 kWh of electricity and 1,954 therms of natural gas.
What are 237E20's carbon emissions?
237E20 reported 590 tCO₂e of greenhouse-gas emissions (7.8 kgCO₂e/ft²) for 2024.
Where is 237E20?
237E20 is at 237 East 20th Street, in New York City, New York 10017. Its coordinates are 40.73646, -73.98329 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 237E20 and when was it built?
237E20 has 76,220 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 237E20 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, “237E20, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/237e20-835e8d5c (data as of October 2, 2026).