420 East 146
Multifamily Housing in New York City, NY · 420 East 146th street · 10455
At a glance
420 East 146 is a 69,000-square-foot multifamily housing building at 420 East 146th street in New York City, New York, built in 1930. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 18 out of 100 (grade D), a site energy-use intensity of 87.7 kBtu/ft² and 407 tCO₂e of greenhouse-gas emissions. That score is higher than 11% 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 | 18 (band D) |
| Site EUI | 87.7 kBtu/ft² |
| Source EUI | 126.9 kBtu/ft² |
| GHG emissions | 407 tCO₂e |
| GHG intensity | 5.9 kgCO₂e/ft² |
| Electricity | 402,178 kWh |
| Natural gas | 46,800 therms |
| Water use | 6,516 kgal |
| Gross floor area | 69,000 sq ft |
| Source record | nyc:6289587:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 18 | -2 | 87.7 kBtu/ft² | 407 tCO₂e |
| 2023 | 20 | -2 | 84.7 kBtu/ft² | 380 tCO₂e |
| 2022 | 22 | 90.1 kBtu/ft² | 372 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
- 420 East 146th street
- City
- New York City
- State
- New York
- ZIP
- 10455
- Coordinates
- 40.81383, -73.91850
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 420 East 146 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. 420 East 146's ENERGY STAR score of 18 compares with an average of 63 across the 22,829 that report a score; it scores higher than 11% of them and lower than 89%. Its site EUI of 87.7 kBtu/ft² is about 17% 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 5.9 kgCO₂e/ft² is about 13% above the group average of 5.2 kgCO₂e/ft².
At 69,000 sq ft, it is about 32% below the average floor area of 100,951 sq ft for those buildings. It was built in 1930, 22 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 420 East 146's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 420 East 146, covering report years 2022–2024. Its ENERGY STAR score went from 22 in 2022 to 18 in 2024 (-4 points); its best year on file was 2022, at 22. Site EUI moved from 90.1 kBtu/ft² (2022) to 87.7 kBtu/ft² (2024), a 3% decrease. Reported emissions went from 372 tCO₂e to 407 tCO₂e over the same span (up 9%).
What does an ENERGY STAR score of 18 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 18 means the building performs better than about 18% of its national peers. BuildingCensus bands the score into report-card grades; 18 falls in band D — lowest band (1–54). It sits 57 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. 420 East 146's 87.7 kBtu/ft² across 69,000 sq ft works out to about 6.1 billion Btu (1,773 MWh-equivalent) in 2024. Its source EUI of 126.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 402,178 kWh of electricity, 46,800 therms of natural gas and 6,516 thousand gallons of water for the year.
Which law requires 420 East 146 to report its energy use?
420 East 146 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:6289587:2024). 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 420 East 146's energy grade?
420 East 146 scores 18 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 420 East 146 use?
Its 2024 site energy-use intensity was 87.7 kBtu/ft² (126.9 kBtu/ft² source) across 69,000 sq ft, including 402,178 kWh of electricity and 46,800 therms of natural gas.
What are 420 East 146's carbon emissions?
420 East 146 reported 407 tCO₂e of greenhouse-gas emissions (5.9 kgCO₂e/ft²) for 2024.
Where is 420 East 146?
420 East 146 is at 420 East 146th street, in New York City, New York 10455. Its coordinates are 40.81383, -73.91850 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 420 East 146 and when was it built?
420 East 146 has 69,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is 420 East 146 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, “420 East 146, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/420-east-146-ed9d2d25 (data as of October 2, 2026).