637 E 223rd St
Multifamily Housing in New York City, NY · 637 E 223rd Street · 10466
At a glance
637 E 223rd St is a 30,321-square-foot multifamily housing building at 637 E 223rd Street in New York City, New York, built in 2023. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 7.8 kBtu/ft² and 27 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 7.8 kBtu/ft² |
| Source EUI | 21.9 kBtu/ft² |
| GHG emissions | 27 tCO₂e |
| GHG intensity | 0.9 kgCO₂e/ft² |
| Electricity | 69,513 kWh |
| Water use | 1,851 kgal |
| Gross floor area | 30,321 sq ft |
| Source record | nyc:54018394:2024 |
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
- 637 E 223rd Street
- City
- New York City
- State
- New York
- ZIP
- 10466
- Coordinates
- 40.88704, -73.86323
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 637 E 223rd St 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. Its site EUI of 7.8 kBtu/ft² is about 90% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.9 kgCO₂e/ft² is about 83% below the group average of 5.2 kgCO₂e/ft².
At 30,321 sq ft, it is about 70% below the average floor area of 100,951 sq ft for those buildings. It was built in 2023, 71 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.
What does a site EUI of 7.8 kBtu/ft² mean?
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. 637 E 223rd St's 7.8 kBtu/ft² across 30,321 sq ft works out to about 0.2 billion Btu (69 MWh-equivalent) in 2024. Its source EUI of 21.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 69,513 kWh of electricity and 1,851 thousand gallons of water for the year.
Which law requires 637 E 223rd St to report its energy use?
637 E 223rd St 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:54018394:2024). 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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- U.H.O.: 232-236 W 120th St· 30,318 sq ft · score 73 (B)
- Crotona Park· 30,311 sq ft · score 1 (D)
- Brooklyn Green Development:1110 DEKALB AVENUE· 30,310 sq ft · score 100 (A)
- Esquire Management - 1826 White Plains Road· 30,300 sq ft · score 18 (D)
- 1826 White Plains Road· 30,300 sq ft · score 19 (D)
- 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 637 E 223rd St's energy grade?
637 E 223rd St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 7.8 kBtu/ft².
How much energy does 637 E 223rd St use?
Its 2024 site energy-use intensity was 7.8 kBtu/ft² (21.9 kBtu/ft² source) across 30,321 sq ft, including 69,513 kWh of electricity.
What are 637 E 223rd St's carbon emissions?
637 E 223rd St reported 27 tCO₂e of greenhouse-gas emissions (0.9 kgCO₂e/ft²) for 2024.
Where is 637 E 223rd St?
637 E 223rd St is at 637 E 223rd Street, in New York City, New York 10466. Its coordinates are 40.88704, -73.86323 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 637 E 223rd St and when was it built?
637 E 223rd St has 30,321 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2023 as its year built. It is classed as multifamily housing.
Is 637 E 223rd St 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, “637 E 223rd St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/637-e-223rd-st-32688331 (data as of October 2, 2026).