380 E 166th St
Multifamily Housing in New York City, NY · 10456
At a glance
380 E 166th St is a 7,964-square-foot multifamily housing building in New York City, New York, built in 2004. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 70.9 kBtu/ft² and 38 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 70.9 kBtu/ft² |
| Source EUI | 104.2 kBtu/ft² |
| GHG emissions | 38 tCO₂e |
| GHG intensity | 4.7 kgCO₂e/ft² |
| Electricity | 39,677 kWh |
| Natural gas | 4,293 therms |
| Gross floor area | 7,964 sq ft |
| Source record | nyc:6176853:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | 70.9 kBtu/ft² | 38 tCO₂e | |
| 2022 | — | 117.1 kBtu/ft² | 54 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
- 380 E 166th St
- City
- New York City
- State
- New York
- ZIP
- 10456
- Coordinates
- 40.82935, -73.91207
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 380 E 166th 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 70.9 kBtu/ft² is roughly in line with 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 4.7 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 7,964 sq ft, it is about 92% below the average floor area of 100,951 sq ft for those buildings. It was built in 2004, 52 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 380 E 166th St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 380 E 166th St, covering report years 2022–2023. Site EUI moved from 117.1 kBtu/ft² (2022) to 70.9 kBtu/ft² (2023), a 39% decrease. Reported emissions went from 54 tCO₂e to 38 tCO₂e over the same span (down 31%).
What does a site EUI of 70.9 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. 380 E 166th St's 70.9 kBtu/ft² across 7,964 sq ft works out to about 0.6 billion Btu (165 MWh-equivalent) in 2023. Its source EUI of 104.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 39,677 kWh of electricity and 4,293 therms of natural gas for the year.
Which law requires 380 E 166th St to report its energy use?
380 E 166th 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 2023 disclosure (source record nyc:6176853:2023). 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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- 73 E 4th St· 7,863 sq ft · score 33 (D)
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is 380 E 166th St's energy grade?
380 E 166th St did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 70.9 kBtu/ft².
How much energy does 380 E 166th St use?
Its 2023 site energy-use intensity was 70.9 kBtu/ft² (104.2 kBtu/ft² source) across 7,964 sq ft, including 39,677 kWh of electricity and 4,293 therms of natural gas.
What are 380 E 166th St's carbon emissions?
380 E 166th St reported 38 tCO₂e of greenhouse-gas emissions (4.7 kgCO₂e/ft²) for 2023.
Where is 380 E 166th St?
380 E 166th St is in New York City, New York 10456. Its coordinates are 40.82935, -73.91207 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 380 E 166th St and when was it built?
380 E 166th St has 7,964 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2004 as its year built. It is classed as multifamily housing.
Is 380 E 166th St covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “380 E 166th St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/380-e-166th-st-4ff6fc19 (data as of October 2, 2026).