551 West 21st Street
Multifamily Housing in New York City, NY · 144 11 AVENUE · 10011
At a glance
551 West 21st Street is a 204,899-square-foot multifamily housing building at 144 11 AVENUE in New York City, New York, built in 2013. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 5 out of 100 (grade D), a site energy-use intensity of 77.3 kBtu/ft² and 1,349 tCO₂e of greenhouse-gas emissions. That score is higher than 4% 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 | 5 (band D) |
| Site EUI | 77.3 kBtu/ft² |
| Source EUI | 151.1 kBtu/ft² |
| GHG emissions | 1,349 tCO₂e |
| GHG intensity | 6.6 kgCO₂e/ft² |
| Electricity | 2,400,173 kWh |
| Natural gas | 76,567 therms |
| Water use | 4,034 kgal |
| Gross floor area | 204,899 sq ft |
| Source record | nyc:5853055:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 5 | -2 | 77.3 kBtu/ft² | 1,349 tCO₂e |
| 2023 | 7 | -3 | 71.1 kBtu/ft² | 1,204 tCO₂e |
| 2022 | 10 | 73.4 kBtu/ft² | 1,041 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
- 144 11 AVENUE
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74760, -74.00781
Within ~1 km
Nearby benchmarked buildings
- Hudson Yards Cogen Campusscore —
Other · 7,739,076 sq ft
- 20-30 Hudson Yardsscore —
Office · 3,810,623 sq ft
- 111 Eighth Avenuescore —
Office · 2,375,706 sq ft
- 601 West 26 St - Starrett Lehighscore 93
Office · 1,939,488 sq ft
- 10 Hudson Yardsscore 62
Office · 1,757,325 sq ft
- 55 Hudson Yardsscore 63
Financial Office · 1,299,559 sq ft
See also: most efficient in New York City · biggest emitters
How does 551 West 21st Street 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. 551 West 21st Street's ENERGY STAR score of 5 compares with an average of 63 across the 22,829 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 77.3 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 6.6 kgCO₂e/ft² is about 27% above the group average of 5.2 kgCO₂e/ft².
At 204,899 sq ft, it is about twice the average floor area of 100,951 sq ft for those buildings. It was built in 2013, 61 years later 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 551 West 21st Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 551 West 21st Street, covering report years 2022–2024. Its ENERGY STAR score went from 10 in 2022 to 5 in 2024 (-5 points); its best year on file was 2022, at 10. Site EUI moved from 73.4 kBtu/ft² (2022) to 77.3 kBtu/ft² (2024), an 5% increase. Reported emissions went from 1,041 tCO₂e to 1,349 tCO₂e over the same span (up 30%).
What does an ENERGY STAR score of 5 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 5 means the building performs better than about 5% of its national peers. BuildingCensus bands the score into report-card grades; 5 falls in band D — lowest band (1–54). It sits 70 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. 551 West 21st Street's 77.3 kBtu/ft² across 204,899 sq ft works out to about 15.8 billion Btu (4,642 MWh-equivalent) in 2024. Its source EUI of 151.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,400,173 kWh of electricity, 76,567 therms of natural gas and 4,034 thousand gallons of water for the year.
Which law requires 551 West 21st Street to report its energy use?
551 West 21st Street 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:5853055:2024). 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
- JK: 303 Beverly Road· 204,879 sq ft · score 74 (B)
- 2425 Nostrand Ave· 204,831 sq ft · score 100 (A)
- SHERIDAN 1511 LLC· 204,750 sq ft · score 37 (D)
- DEPM 2556 - 363 East 76th St· 204,722 sq ft · score 62 (C)
- (NY03043) - Sofia Condominium· 204,711 sq ft · score 65 (C)
- Pelican: 1981-1995 Sedgwick Avenue· 204,600 sq ft · score 88 (A)
- 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 551 West 21st Street's energy grade?
551 West 21st Street scores 5 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 551 West 21st Street use?
Its 2024 site energy-use intensity was 77.3 kBtu/ft² (151.1 kBtu/ft² source) across 204,899 sq ft, including 2,400,173 kWh of electricity and 76,567 therms of natural gas.
What are 551 West 21st Street's carbon emissions?
551 West 21st Street reported 1,349 tCO₂e of greenhouse-gas emissions (6.6 kgCO₂e/ft²) for 2024.
Where is 551 West 21st Street?
551 West 21st Street is at 144 11 AVENUE, in New York City, New York 10011. Its coordinates are 40.74760, -74.00781 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 551 West 21st Street and when was it built?
551 West 21st Street has 204,899 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2013 as its year built. It is classed as multifamily housing.
Is 551 West 21st Street 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “551 West 21st Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/551-west-21st-street-ae67981e (data as of October 2, 2026).