770 E 221 Street - 20637
Multifamily Housing in New York City, NY · 770 E 221 Street · 10467
At a glance
770 E 221 Street - 20637 is a 43,014-square-foot multifamily housing building in New York City, New York, built in 1929. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 52 out of 100 (grade D), a site energy-use intensity of 80.0 kBtu/ft² and 209 tCO₂e of greenhouse-gas emissions. That score is higher than 33% 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 | 52 (band D) |
| Site EUI | 80.0 kBtu/ft² |
| Source EUI | 101.3 kBtu/ft² |
| GHG emissions | 209 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 124,332 kWh |
| Natural gas | 30,176 therms |
| Water use | 4,397 kgal |
| Gross floor area | 43,014 sq ft |
| Source record | nyc:6289483:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 52 | -1 | 80.0 kBtu/ft² | 209 tCO₂e |
| 2023 | 53 | +2 | 75.7 kBtu/ft² | 198 tCO₂e |
| 2022 | 51 | 87.6 kBtu/ft² | 195 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
- 770 E 221 Street
- City
- New York City
- State
- New York
- ZIP
- 10467
- Coordinates
- 40.88438, -73.86017
Within ~1 km
Nearby benchmarked buildings
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- 3555 Olinville Ave - 41566score 64
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See also: most efficient in New York City · biggest emitters
How does 770 E 221 Street - 20637 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. 770 E 221 Street - 20637's ENERGY STAR score of 52 compares with an average of 63 across the 22,829 that report a score; it scores higher than 33% of them and lower than 66%. Its site EUI of 80.0 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 4.9 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 43,014 sq ft, it is about 57% 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 770 E 221 Street - 20637's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 770 E 221 Street - 20637, covering report years 2022–2024. Its ENERGY STAR score went from 51 in 2022 to 52 in 2024 (+1 points); its best year on file was 2023, at 53. Site EUI moved from 87.6 kBtu/ft² (2022) to 80.0 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 195 tCO₂e to 209 tCO₂e over the same span (up 7%).
What does an ENERGY STAR score of 52 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 52 means the building performs better than about 52% of its national peers. BuildingCensus bands the score into report-card grades; 52 falls in band D — lowest band (1–54). It sits 23 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. 770 E 221 Street - 20637's 80.0 kBtu/ft² across 43,014 sq ft works out to about 3.4 billion Btu (1,008 MWh-equivalent) in 2024. Its source EUI of 101.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 124,332 kWh of electricity, 30,176 therms of natural gas and 4,397 thousand gallons of water for the year.
Which law requires 770 E 221 Street - 20637 to report its energy use?
770 E 221 Street - 20637 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:6289483:2024). 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
- DEPM 1728 - 92 Greene Street· 43,011 sq ft · EUI 77.4 kBtu/ft²
- Little Park House Corp· 43,010 sq ft · score 71 (B)
- 2315 Cambreleng Ave Dev, LLC· 43,003 sq ft · score 89 (A)
- Stagg Group-2315 Cambreleng Ave· 43,003 sq ft · score 77 (B)
- 518 West 111 St· 43,002 sq ft · score 1 (D)
- 1261 49 Street· 43,000 sq ft · score 89 (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 770 E 221 Street - 20637's energy grade?
770 E 221 Street - 20637 scores 52 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 770 E 221 Street - 20637 use?
Its 2024 site energy-use intensity was 80.0 kBtu/ft² (101.3 kBtu/ft² source) across 43,014 sq ft, including 124,332 kWh of electricity and 30,176 therms of natural gas.
What are 770 E 221 Street - 20637's carbon emissions?
770 E 221 Street - 20637 reported 209 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2024.
Where is 770 E 221 Street - 20637?
770 E 221 Street - 20637 is in New York City, New York 10467. Its coordinates are 40.88438, -73.86017 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 770 E 221 Street - 20637 and when was it built?
770 E 221 Street - 20637 has 43,014 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 770 E 221 Street - 20637 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, “770 E 221 Street - 20637, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/770-e-221-street-20637-1aef8fc2 (data as of October 2, 2026).