2820 Decatur Avenue LLC
Multifamily Housing in New York City, NY · 2820 Decatur Avenue · 10458
At a glance
2820 Decatur Avenue LLC is a 55,255-square-foot multifamily housing building in New York City, New York, built in 1925. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 72.4 kBtu/ft² and 250 tCO₂e of greenhouse-gas emissions. That score is higher than 57% 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 | 75 (band B) |
| Site EUI | 72.4 kBtu/ft² |
| Source EUI | 95.0 kBtu/ft² |
| GHG emissions | 250 tCO₂e |
| GHG intensity | 4.5 kgCO₂e/ft² |
| Electricity | 175,458 kWh |
| Natural gas | 34,026 therms |
| Water use | 5,668 kgal |
| Gross floor area | 55,255 sq ft |
| Source record | nyc:10150579:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 75 | +10 | 72.4 kBtu/ft² | 250 tCO₂e |
| 2023 | 65 | -24 | 77.9 kBtu/ft² | 260 tCO₂e |
| 2022 | 89 | 71.5 kBtu/ft² | 219 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
- 2820 Decatur Avenue
- City
- New York City
- State
- New York
- ZIP
- 10458
- Coordinates
- 40.86696, -73.88592
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 2820 Decatur Avenue LLC 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. 2820 Decatur Avenue LLC's ENERGY STAR score of 75 compares with an average of 63 across the 22,829 that report a score; it scores higher than 57% of them and lower than 42%. Its site EUI of 72.4 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 4.5 kgCO₂e/ft² is about 13% below the group average of 5.2 kgCO₂e/ft².
At 55,255 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1925, 27 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 2820 Decatur Avenue LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 2820 Decatur Avenue LLC, covering report years 2022–2024. Its ENERGY STAR score went from 89 in 2022 to 75 in 2024 (-14 points); its best year on file was 2022, at 89. Site EUI moved from 71.5 kBtu/ft² (2022) to 72.4 kBtu/ft² (2024), an 1% increase. Reported emissions went from 219 tCO₂e to 250 tCO₂e over the same span (up 14%).
What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 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. 2820 Decatur Avenue LLC's 72.4 kBtu/ft² across 55,255 sq ft works out to about 4 billion Btu (1,172 MWh-equivalent) in 2024. Its source EUI of 95.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 175,458 kWh of electricity, 34,026 therms of natural gas and 5,668 thousand gallons of water for the year.
Which law requires 2820 Decatur Avenue LLC to report its energy use?
2820 Decatur Avenue LLC 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:10150579:2024). 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 2820 Decatur Avenue LLC's energy grade?
2820 Decatur Avenue LLC scores 75 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 2820 Decatur Avenue LLC use?
Its 2024 site energy-use intensity was 72.4 kBtu/ft² (95.0 kBtu/ft² source) across 55,255 sq ft, including 175,458 kWh of electricity and 34,026 therms of natural gas.
What are 2820 Decatur Avenue LLC's carbon emissions?
2820 Decatur Avenue LLC reported 250 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2024.
Where is 2820 Decatur Avenue LLC?
2820 Decatur Avenue LLC is in New York City, New York 10458. Its coordinates are 40.86696, -73.88592 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 2820 Decatur Avenue LLC and when was it built?
2820 Decatur Avenue LLC has 55,255 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1925 as its year built. It is classed as multifamily housing.
Is 2820 Decatur Avenue LLC 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, “2820 Decatur Avenue LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/2820-decatur-avenue-llc-09036128 (data as of October 2, 2026).