134 West 143rd Street HDFC
Multifamily Housing in New York City, NY · 134 West 143 Street · 10030
At a glance
134 West 143rd Street HDFC is a 38,017-square-foot multifamily housing building at 134 West 143 Street in New York City, New York, built in 1915. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 21.1 kBtu/ft² and 43 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 100 (band A) |
| Site EUI | 21.1 kBtu/ft² |
| Source EUI | 22.1 kBtu/ft² |
| GHG emissions | 43 tCO₂e |
| GHG intensity | 1.1 kgCO₂e/ft² |
| Natural gas | 8,019 therms |
| Water use | 3,946 kgal |
| Gross floor area | 38,017 sq ft |
| Source record | nyc:28621288:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +8 | 21.1 kBtu/ft² | 43 tCO₂e |
| 2023 | 92 | 68.0 kBtu/ft² | 137 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
- 134 West 143 Street
- City
- New York City
- State
- New York
- ZIP
- 10030
- Coordinates
- 40.81969, -73.93850
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 134 West 143rd Street HDFC 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. 134 West 143rd Street HDFC's ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 21.1 kBtu/ft² is about 72% below 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 1.1 kgCO₂e/ft² is about 78% below the group average of 5.2 kgCO₂e/ft².
At 38,017 sq ft, it is about 62% below the average floor area of 100,951 sq ft for those buildings. It was built in 1915, 37 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 134 West 143rd Street HDFC's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 134 West 143rd Street HDFC, covering report years 2023–2024. Its ENERGY STAR score went from 92 in 2023 to 100 in 2024 (+8 points). Site EUI moved from 68.0 kBtu/ft² (2023) to 21.1 kBtu/ft² (2024), a 69% decrease. Reported emissions went from 137 tCO₂e to 43 tCO₂e over the same span (down 69%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). 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. 134 West 143rd Street HDFC's 21.1 kBtu/ft² across 38,017 sq ft works out to about 0.8 billion Btu (235 MWh-equivalent) in 2024. Its source EUI of 22.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 8,019 therms of natural gas and 3,946 thousand gallons of water for the year.
Which law requires 134 West 143rd Street HDFC to report its energy use?
134 West 143rd Street HDFC 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:28621288:2024). 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
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- CFF Consulting - 2363 ACP Boulevard· 38,011 sq ft · score 7 (D)
- 641 REALTY CORP· 38,010 sq ft · score 55 (C)
- Ace: 3685 Shore Pkwy· 38,006 sq ft · score 47 (D)
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is 134 West 143rd Street HDFC's energy grade?
134 West 143rd Street HDFC scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 134 West 143rd Street HDFC use?
Its 2024 site energy-use intensity was 21.1 kBtu/ft² (22.1 kBtu/ft² source) across 38,017 sq ft and 8,019 therms of natural gas.
What are 134 West 143rd Street HDFC's carbon emissions?
134 West 143rd Street HDFC reported 43 tCO₂e of greenhouse-gas emissions (1.1 kgCO₂e/ft²) for 2024.
Where is 134 West 143rd Street HDFC?
134 West 143rd Street HDFC is at 134 West 143 Street, in New York City, New York 10030. Its coordinates are 40.81969, -73.93850 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 134 West 143rd Street HDFC and when was it built?
134 West 143rd Street HDFC has 38,017 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1915 as its year built. It is classed as multifamily housing.
Is 134 West 143rd Street HDFC 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, “134 West 143rd Street HDFC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/134-west-143rd-street-hdfc-b4d0e351 (data as of October 2, 2026).