650 West 173rd Street
Multifamily Housing in New York City, NY · 10032
At a glance
650 West 173rd Street is a 25,410-square-foot multifamily housing building in New York City, New York, built in 1917. 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 88.7 kBtu/ft² and 146 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 | 88.7 kBtu/ft² |
| Source EUI | 122.9 kBtu/ft² |
| GHG emissions | 146 tCO₂e |
| GHG intensity | 5.8 kgCO₂e/ft² |
| Electricity | 126,311 kWh |
| Natural gas | 18,239 therms |
| Water use | 2,130 kgal |
| Gross floor area | 25,410 sq ft |
| Source record | nyc:12822258:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 51 | -33 | 88.7 kBtu/ft² | 146 tCO₂e |
| 2023 | 84 | +47 | 60.3 kBtu/ft² | 106 tCO₂e |
| 2022 | 37 | 104.1 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
- 650 West 173rd Street
- City
- New York City
- State
- New York
- ZIP
- 10032
- Coordinates
- 40.84502, -73.93969
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 650 West 173rd 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. 650 West 173rd Street'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 88.7 kBtu/ft² is about 18% 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 5.8 kgCO₂e/ft² is about 11% above the group average of 5.2 kgCO₂e/ft².
At 25,410 sq ft, it is about 75% below the average floor area of 100,951 sq ft for those buildings. It was built in 1917, 35 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 650 West 173rd Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 650 West 173rd Street, covering report years 2022–2024. Its ENERGY STAR score went from 37 in 2022 to 51 in 2024 (+14 points); its best year on file was 2023, at 84. Site EUI moved from 104.1 kBtu/ft² (2022) to 88.7 kBtu/ft² (2024), a 15% decrease. Reported emissions went from 155 tCO₂e to 146 tCO₂e over the same span (down 6%).
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. 650 West 173rd Street's 88.7 kBtu/ft² across 25,410 sq ft works out to about 2.3 billion Btu (661 MWh-equivalent) in 2024. Its source EUI of 122.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 126,311 kWh of electricity, 18,239 therms of natural gas and 2,130 thousand gallons of water for the year.
Which law requires 650 West 173rd Street to report its energy use?
650 West 173rd 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:12822258:2024). 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
- A00040 - 131 E. 81st St Owners Inc· 25,406 sq ft · EUI 90.5 kBtu/ft²
- NB:131 E 81st Street· 25,406 sq ft · EUI 90.9 kBtu/ft²
- 151 East 81st Street· 25,402 sq ft · score 13 (D)
- 151 East 81st Street· 25,402 sq ft · score 100 (A)
- 643 WEST 172ND STREET· 25,400 sq ft · score 100 (A)
- Yarok Realty Inc· 25,400 sq ft · score 87 (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 650 West 173rd Street's energy grade?
650 West 173rd Street 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 650 West 173rd Street use?
Its 2024 site energy-use intensity was 88.7 kBtu/ft² (122.9 kBtu/ft² source) across 25,410 sq ft, including 126,311 kWh of electricity and 18,239 therms of natural gas.
What are 650 West 173rd Street's carbon emissions?
650 West 173rd Street reported 146 tCO₂e of greenhouse-gas emissions (5.8 kgCO₂e/ft²) for 2024.
Where is 650 West 173rd Street?
650 West 173rd Street is in New York City, New York 10032. Its coordinates are 40.84502, -73.93969 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 650 West 173rd Street and when was it built?
650 West 173rd Street has 25,410 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1917 as its year built. It is classed as multifamily housing.
Is 650 West 173rd 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).
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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, “650 West 173rd Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/650-west-173rd-street-b8f4ab44 (data as of October 2, 2026).