617 WEST 143 HOLDINGS LLC
Multifamily Housing in New York City, NY · 620 West 141st Street · 10031
At a glance
617 WEST 143 HOLDINGS LLC is a 34,300-square-foot multifamily housing building at 620 West 141st Street in New York City, New York, built in 1909. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 51 out of 100 (grade D), a site energy-use intensity of 79.4 kBtu/ft² and 174 tCO₂e of greenhouse-gas emissions. That score is higher than 32% 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 | 51 (band D) |
| Site EUI | 79.4 kBtu/ft² |
| Source EUI | 107.2 kBtu/ft² |
| GHG emissions | 174 tCO₂e |
| GHG intensity | 5.1 kgCO₂e/ft² |
| Electricity | 136,697 kWh |
| Natural gas | 22,565 therms |
| Gross floor area | 34,300 sq ft |
| Source record | nyc:6464271:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 51 | -5 | 79.4 kBtu/ft² | 174 tCO₂e |
| 2023 | 56 | +29 | 73.5 kBtu/ft² | 161 tCO₂e |
| 2022 | 27 | 102.0 kBtu/ft² | 202 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
- 620 West 141st Street
- City
- New York City
- State
- New York
- ZIP
- 10031
- Coordinates
- 40.82416, -73.95298
Within ~1 km
Nearby benchmarked buildings
- Benchmarking Group - 10score —
College/University · 3,385,955 sq ft
- 1470 Amsterdam Avenuescore 2
Multifamily Housing · 1,291,359 sq ft
- Manhattanville Campusscore —
College/University · 1,272,806 sq ft
Wastewater Treatment Plant · 1,129,933 sq ft
- 560 Riverside Drive Campusscore —
Multifamily Housing · 912,727 sq ft
College/University · 885,656 sq ft
See also: most efficient in New York City · biggest emitters
How does 617 WEST 143 HOLDINGS 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. 617 WEST 143 HOLDINGS LLC's ENERGY STAR score of 51 compares with an average of 63 across the 22,829 that report a score; it scores higher than 32% of them and lower than 67%. Its site EUI of 79.4 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.1 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 34,300 sq ft, it is about 66% below the average floor area of 100,951 sq ft for those buildings. It was built in 1909, 43 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 617 WEST 143 HOLDINGS LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 617 WEST 143 HOLDINGS LLC, covering report years 2022–2024. Its ENERGY STAR score went from 27 in 2022 to 51 in 2024 (+24 points); its best year on file was 2023, at 56. Site EUI moved from 102.0 kBtu/ft² (2022) to 79.4 kBtu/ft² (2024), a 22% decrease. Reported emissions went from 202 tCO₂e to 174 tCO₂e over the same span (down 14%).
What does an ENERGY STAR score of 51 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 51 means the building performs better than about 51% of its national peers. BuildingCensus bands the score into report-card grades; 51 falls in band D — lowest band (1–54). It sits 24 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. 617 WEST 143 HOLDINGS LLC's 79.4 kBtu/ft² across 34,300 sq ft works out to about 2.7 billion Btu (798 MWh-equivalent) in 2024. Its source EUI of 107.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 136,697 kWh of electricity and 22,565 therms of natural gas for the year.
Which law requires 617 WEST 143 HOLDINGS LLC to report its energy use?
617 WEST 143 HOLDINGS 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:6464271:2024). 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
- 29 West 64th Street· 34,290 sq ft · score 53 (D)
- 33rd Avenue· 34,288 sq ft · score 59 (C)
- Dafnonas Estates LTD: 367 95th St· 34,287 sq ft · score 49 (D)
- APTS 111-35 75 LLC· 34,286 sq ft · score 94 (A)
- 390 LORIMER ST CONDOMINIUM· 34,277 sq ft · score 64 (C)
- 169 Spring Street· 34,276 sq ft · EUI 66.6 kBtu/ft²
- 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 617 WEST 143 HOLDINGS LLC's energy grade?
617 WEST 143 HOLDINGS LLC scores 51 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 617 WEST 143 HOLDINGS LLC use?
Its 2024 site energy-use intensity was 79.4 kBtu/ft² (107.2 kBtu/ft² source) across 34,300 sq ft, including 136,697 kWh of electricity and 22,565 therms of natural gas.
What are 617 WEST 143 HOLDINGS LLC's carbon emissions?
617 WEST 143 HOLDINGS LLC reported 174 tCO₂e of greenhouse-gas emissions (5.1 kgCO₂e/ft²) for 2024.
Where is 617 WEST 143 HOLDINGS LLC?
617 WEST 143 HOLDINGS LLC is at 620 West 141st Street, in New York City, New York 10031. Its coordinates are 40.82416, -73.95298 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 617 WEST 143 HOLDINGS LLC and when was it built?
617 WEST 143 HOLDINGS LLC has 34,300 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1909 as its year built. It is classed as multifamily housing.
Is 617 WEST 143 HOLDINGS 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).
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, “617 WEST 143 HOLDINGS LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/617-west-143-holdings-llc-3b933848 (data as of October 2, 2026).