410 Westchester Avenue
Office in New York City, NY · 401-427 East 149th Street · 10455
At a glance
410 Westchester Avenue is a 188,627-square-foot office building at 401-427 East 149th Street in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 83 out of 100 (grade B), a site energy-use intensity of 58.1 kBtu/ft² and 1,033 tCO₂e of greenhouse-gas emissions. That score is higher than 58% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 83 (band B) |
| Site EUI | 58.1 kBtu/ft² |
| Source EUI | 128.5 kBtu/ft² |
| GHG emissions | 1,033 tCO₂e |
| GHG intensity | 5.5 kgCO₂e/ft² |
| Electricity | 2,133,077 kWh |
| Natural gas | 36,795 therms |
| Gross floor area | 188,627 sq ft |
| Source record | nyc:4520863:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 83 | +2 | 58.1 kBtu/ft² | 1,033 tCO₂e |
| 2023 | 81 | +3 | 55.0 kBtu/ft² | 902 tCO₂e |
| 2022 | 78 | 61.8 kBtu/ft² | 813 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 401-427 East 149th Street
- City
- New York City
- State
- New York
- ZIP
- 10455
- Coordinates
- 40.81602, -73.91751
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 410 Westchester Avenue compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. 410 Westchester Avenue's ENERGY STAR score of 83 compares with an average of 72 across the 2,519 that report a score; it scores higher than 58% of them and lower than 39%. Its site EUI of 58.1 kBtu/ft² is roughly in line with the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.5 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².
At 188,627 sq ft, it is roughly in line with the average floor area of 205,440 sq ft for those buildings. It was built in 1931, 9 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 410 Westchester Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 410 Westchester Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 78 in 2022 to 83 in 2024 (+5 points). Site EUI moved from 61.8 kBtu/ft² (2022) to 58.1 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 813 tCO₂e to 1,033 tCO₂e over the same span (up 27%).
What does an ENERGY STAR score of 83 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 83 means the building performs better than about 83% of its national peers. BuildingCensus bands the score into report-card grades; 83 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 410 Westchester Avenue's 58.1 kBtu/ft² across 188,627 sq ft works out to about 11 billion Btu (3,212 MWh-equivalent) in 2024. Its source EUI of 128.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,133,077 kWh of electricity and 36,795 therms of natural gas for the year.
Which law requires 410 Westchester Avenue to report its energy use?
410 Westchester Avenue 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:4520863:2024). 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 office buildings in New York City
- 214 West 39th Street· 188,596 sq ft · score 85 (A)
- 25 West 45th Street· 187,567 sq ft · score 84 (B)
- 132 West 36th Street· 187,350 sq ft · score 93 (A)
- 250 West 39th Street· 187,170 sq ft · score 88 (A)
- CO/VZT/221 E 37TH ST/NEW YORK/NY· 187,129 sq ft · EUI 57.8 kBtu/ft²
- 2417 Third Avenue· 187,036 sq ft · score 78 (B)
- Office buildings in New York City· 3,384 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 410 Westchester Avenue's energy grade?
410 Westchester Avenue scores 83 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 410 Westchester Avenue use?
Its 2024 site energy-use intensity was 58.1 kBtu/ft² (128.5 kBtu/ft² source) across 188,627 sq ft, including 2,133,077 kWh of electricity and 36,795 therms of natural gas.
What are 410 Westchester Avenue's carbon emissions?
410 Westchester Avenue reported 1,033 tCO₂e of greenhouse-gas emissions (5.5 kgCO₂e/ft²) for 2024.
Where is 410 Westchester Avenue?
410 Westchester Avenue is at 401-427 East 149th Street, in New York City, New York 10455. Its coordinates are 40.81602, -73.91751 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 410 Westchester Avenue and when was it built?
410 Westchester Avenue has 188,627 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as office.
Is 410 Westchester Avenue 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, “410 Westchester Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/410-westchester-avenue-32485857 (data as of October 2, 2026).