2121 Westbury Court
Multifamily Housing in New York City, NY · 11225
At a glance
2121 Westbury Court is a 87,552-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 96 out of 100 (grade A), a site energy-use intensity of 71.1 kBtu/ft² and 417 tCO₂e of greenhouse-gas emissions. That score is higher than 84% 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 | 96 (band A) |
| Site EUI | 71.1 kBtu/ft² |
| Source EUI | 102.6 kBtu/ft² |
| GHG emissions | 417 tCO₂e |
| GHG intensity | 4.8 kgCO₂e/ft² |
| Electricity | 409,706 kWh |
| Natural gas | 48,263 therms |
| Water use | 338 kgal |
| Gross floor area | 87,552 sq ft |
| Source record | nyc:3524943:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 96 | ±0 | 71.1 kBtu/ft² | 417 tCO₂e |
| 2023 | 96 | ±0 | 75.9 kBtu/ft² | 413 tCO₂e |
| 2022 | 96 | 81.4 kBtu/ft² | 410 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
- 2121 Westbury Court
- City
- New York City
- State
- New York
- ZIP
- 11225
- Coordinates
- 40.65675, -73.96027
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 2121 Westbury Court 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. 2121 Westbury Court's ENERGY STAR score of 96 compares with an average of 63 across the 22,829 that report a score; it scores higher than 84% of them and lower than 14%. Its site EUI of 71.1 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 4.8 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 87,552 sq ft, it is about 13% 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 2121 Westbury Court's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 2121 Westbury Court, covering report years 2022–2024. Its ENERGY STAR score was 96 in both 2022 and 2024. Site EUI moved from 81.4 kBtu/ft² (2022) to 71.1 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 410 tCO₂e to 417 tCO₂e over the same span (up 2%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 falls in band A — high performer (85–100). 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. 2121 Westbury Court's 71.1 kBtu/ft² across 87,552 sq ft works out to about 6.2 billion Btu (1,824 MWh-equivalent) in 2024. Its source EUI of 102.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 409,706 kWh of electricity, 48,263 therms of natural gas and 338 thousand gallons of water for the year.
Which law requires 2121 Westbury Court to report its energy use?
2121 Westbury Court 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:3524943:2024). 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
- 234 East 23rd Street Condominium (234-238 East 23rd Street)· 87,539 sq ft · score 28 (D)
- 3995 Nostrand Owners Corp· 87,526 sq ft · score 45 (D)
- Wallach Hall· 87,522 sq ft
- 225 West 232 Street· 87,510 sq ft · score 24 (D)
- 210 Lafayette Street Condominium· 87,506 sq ft · score 14 (D)
- 116 East 63rd. St. Corp. (116 E 63 St.)· 87,505 sq ft · score 80 (B)
- 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 2121 Westbury Court's energy grade?
2121 Westbury Court scores 96 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2121 Westbury Court use?
Its 2024 site energy-use intensity was 71.1 kBtu/ft² (102.6 kBtu/ft² source) across 87,552 sq ft, including 409,706 kWh of electricity and 48,263 therms of natural gas.
What are 2121 Westbury Court's carbon emissions?
2121 Westbury Court reported 417 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2024.
Where is 2121 Westbury Court?
2121 Westbury Court is in New York City, New York 11225. Its coordinates are 40.65675, -73.96027 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 2121 Westbury Court and when was it built?
2121 Westbury Court has 87,552 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 2121 Westbury Court 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, “2121 Westbury Court, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/2121-westbury-court-ae11d0e9 (data as of October 2, 2026).