25-21 31st Ave
Multifamily Housing in New York City, NY · 25-21 31st Avenue · 11106
At a glance
25-21 31st Ave is a 49,386-square-foot multifamily housing building at 25-21 31st Avenue in New York City, New York, built in 1926. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 84 out of 100 (grade B), a site energy-use intensity of 90.7 kBtu/ft² and 276 tCO₂e of greenhouse-gas emissions. That score is higher than 68% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 84 (band B) |
| Site EUI | 90.7 kBtu/ft² |
| Source EUI | 119.3 kBtu/ft² |
| GHG emissions | 276 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 198,931 kWh |
| Natural gas | 38,017 therms |
| Gross floor area | 49,386 sq ft |
| Source record | nyc:6277812:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 84 | +5 | 90.7 kBtu/ft² | 276 tCO₂e |
| 2022 | 79 | 102.3 kBtu/ft² | 290 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
- 25-21 31st Avenue
- City
- New York City
- State
- New York
- ZIP
- 11106
- Coordinates
- 40.76564, -73.92622
Within ~1 km
Nearby benchmarked buildings
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See also: most efficient in New York City · biggest emitters
How does 25-21 31st Ave 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. 25-21 31st Ave's ENERGY STAR score of 84 compares with an average of 63 across the 22,829 that report a score; it scores higher than 68% of them and lower than 30%. Its site EUI of 90.7 kBtu/ft² is about 21% 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 5.6 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 49,386 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1926, 26 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 25-21 31st Ave's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 25-21 31st Ave, covering report years 2022–2023. Its ENERGY STAR score went from 79 in 2022 to 84 in 2023 (+5 points). Site EUI moved from 102.3 kBtu/ft² (2022) to 90.7 kBtu/ft² (2023), a 11% decrease. Reported emissions went from 290 tCO₂e to 276 tCO₂e over the same span (down 5%).
What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 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. 25-21 31st Ave's 90.7 kBtu/ft² across 49,386 sq ft works out to about 4.5 billion Btu (1,313 MWh-equivalent) in 2023. Its source EUI of 119.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 198,931 kWh of electricity and 38,017 therms of natural gas for the year.
Which law requires 25-21 31st Ave to report its energy use?
25-21 31st Ave 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:6277812:2023). 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.
More multifamily housing buildings in New York City
- 247 Audubon Ave, 10033· 49,380 sq ft · score 51 (D)
- Living - 517 West 29th Street· 49,375 sq ft · score 60 (C)
- REHAB PROGRAM (WISE REHAB)· 49,365 sq ft · score 36 (D)
- 229 West 105th Street· 49,364 sq ft · score 98 (A)
- DEPM 1876 - 42 Crosby Street· 49,353 sq ft · EUI 50.6 kBtu/ft²
- 6070 Woodhaven Blvd· 49,347 sq ft · score 41 (D)
- 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 25-21 31st Ave's energy grade?
25-21 31st Ave scores 84 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 25-21 31st Ave use?
Its 2023 site energy-use intensity was 90.7 kBtu/ft² (119.3 kBtu/ft² source) across 49,386 sq ft, including 198,931 kWh of electricity and 38,017 therms of natural gas.
What are 25-21 31st Ave's carbon emissions?
25-21 31st Ave reported 276 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2023.
Where is 25-21 31st Ave?
25-21 31st Ave is at 25-21 31st Avenue, in New York City, New York 11106. Its coordinates are 40.76564, -73.92622 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 25-21 31st Ave and when was it built?
25-21 31st Ave has 49,386 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1926 as its year built. It is classed as multifamily housing.
Is 25-21 31st Ave 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, “25-21 31st Ave, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/25-21-31st-ave-b87c9c99 (data as of October 2, 2026).