485 EAST 21st STREET - 44248
Multifamily Housing in New York City, NY · 485 EAST 21st STREET · 11226
At a glance
485 EAST 21st STREET - 44248 is a 25,750-square-foot multifamily housing building in New York City, New York, built in 1922. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 6 out of 100 (grade D), a site energy-use intensity of 126.6 kBtu/ft² and 198 tCO₂e of greenhouse-gas emissions. That score is higher than 5% 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 | 6 (band D) |
| Site EUI | 126.6 kBtu/ft² |
| Source EUI | 160.2 kBtu/ft² |
| GHG emissions | 198 tCO₂e |
| GHG intensity | 7.7 kgCO₂e/ft² |
| Electricity | 117,911 kWh |
| Natural gas | 28,566 therms |
| Gross floor area | 25,750 sq ft |
| Source record | nyc:6225058:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 6 | -9 | 126.6 kBtu/ft² | 198 tCO₂e |
| 2023 | 15 | -11 | 106.7 kBtu/ft² | 168 tCO₂e |
| 2022 | 26 | 104.4 kBtu/ft² | 155 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
- 485 EAST 21st STREET
- City
- New York City
- State
- New York
- ZIP
- 11226
- Coordinates
- 40.64247, -73.95850
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 485 EAST 21st STREET - 44248 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. 485 EAST 21st STREET - 44248's ENERGY STAR score of 6 compares with an average of 63 across the 22,829 that report a score; it scores higher than 5% of them and lower than 94%. Its site EUI of 126.6 kBtu/ft² is about 69% 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 7.7 kgCO₂e/ft² is about 48% above the group average of 5.2 kgCO₂e/ft².
At 25,750 sq ft, it is about 74% below the average floor area of 100,951 sq ft for those buildings. It was built in 1922, 30 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 485 EAST 21st STREET - 44248's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 485 EAST 21st STREET - 44248, covering report years 2022–2024. Its ENERGY STAR score went from 26 in 2022 to 6 in 2024 (-20 points); its best year on file was 2022, at 26. Site EUI moved from 104.4 kBtu/ft² (2022) to 126.6 kBtu/ft² (2024), an 21% increase. Reported emissions went from 155 tCO₂e to 198 tCO₂e over the same span (up 28%).
What does an ENERGY STAR score of 6 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 6 means the building performs better than about 6% of its national peers. BuildingCensus bands the score into report-card grades; 6 falls in band D — lowest band (1–54). It sits 69 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. 485 EAST 21st STREET - 44248's 126.6 kBtu/ft² across 25,750 sq ft works out to about 3.3 billion Btu (955 MWh-equivalent) in 2024. Its source EUI of 160.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 117,911 kWh of electricity and 28,566 therms of natural gas for the year.
Which law requires 485 EAST 21st STREET - 44248 to report its energy use?
485 EAST 21st STREET - 44248 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:6225058:2024). 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
- GREENWICH GREEN COOPERATIVE IN· 25,746 sq ft · EUI 72.8 kBtu/ft²
- 81-83 Franklin Street· 25,738 sq ft · EUI 50.6 kBtu/ft²
- Franklin - 81-83 Franklin St· 25,738 sq ft · EUI 48.8 kBtu/ft²
- 27-35 21st Street· 25,728 sq ft · score 68 (C)
- Stellar - 2-4 West 111th Street· 25,721 sq ft · score 1 (D)
- 368-378 East 165 Street· 25,716 sq ft · score 48 (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 485 EAST 21st STREET - 44248's energy grade?
485 EAST 21st STREET - 44248 scores 6 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 485 EAST 21st STREET - 44248 use?
Its 2024 site energy-use intensity was 126.6 kBtu/ft² (160.2 kBtu/ft² source) across 25,750 sq ft, including 117,911 kWh of electricity and 28,566 therms of natural gas.
What are 485 EAST 21st STREET - 44248's carbon emissions?
485 EAST 21st STREET - 44248 reported 198 tCO₂e of greenhouse-gas emissions (7.7 kgCO₂e/ft²) for 2024.
Where is 485 EAST 21st STREET - 44248?
485 EAST 21st STREET - 44248 is in New York City, New York 11226. Its coordinates are 40.64247, -73.95850 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 485 EAST 21st STREET - 44248 and when was it built?
485 EAST 21st STREET - 44248 has 25,750 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1922 as its year built. It is classed as multifamily housing.
Is 485 EAST 21st STREET - 44248 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, “485 EAST 21st STREET - 44248, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/485-east-21st-street-44248-373c6c20 (data as of October 2, 2026).