647 West 174 Street
Multifamily Housing in New York City, NY · 10033
At a glance
647 West 174 Street is a 29,910-square-foot multifamily housing building in New York City, New York, built in 1924. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 60 out of 100 (grade C), a site energy-use intensity of 94.6 kBtu/ft² and 179 tCO₂e of greenhouse-gas emissions. That score is higher than 41% 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 | 60 (band C) |
| Site EUI | 94.6 kBtu/ft² |
| Source EUI | 126.2 kBtu/ft² |
| GHG emissions | 179 tCO₂e |
| GHG intensity | 6.0 kgCO₂e/ft² |
| Electricity | 134,220 kWh |
| Natural gas | 23,727 therms |
| Water use | 2,779 kgal |
| Gross floor area | 29,910 sq ft |
| Source record | nyc:21988370:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 60 | -6 | 94.6 kBtu/ft² | 179 tCO₂e |
| 2023 | 66 | +13 | 90.1 kBtu/ft² | 167 tCO₂e |
| 2022 | 53 | 106.3 kBtu/ft² | 183 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
- 647 West 174 Street
- City
- New York City
- State
- New York
- ZIP
- 10033
- Coordinates
- 40.84563, -73.93913
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 647 West 174 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. 647 West 174 Street's ENERGY STAR score of 60 compares with an average of 63 across the 22,829 that report a score; it scores higher than 41% of them and lower than 58%. Its site EUI of 94.6 kBtu/ft² is about 26% 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 6.0 kgCO₂e/ft² is about 15% above the group average of 5.2 kgCO₂e/ft².
At 29,910 sq ft, it is about 70% below the average floor area of 100,951 sq ft for those buildings. It was built in 1924, 28 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 647 West 174 Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 647 West 174 Street, covering report years 2022–2024. Its ENERGY STAR score went from 53 in 2022 to 60 in 2024 (+7 points); its best year on file was 2023, at 66. Site EUI moved from 106.3 kBtu/ft² (2022) to 94.6 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 183 tCO₂e to 179 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 60 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 60 means the building performs better than about 60% of its national peers. BuildingCensus bands the score into report-card grades; 60 falls in band C — below median (55–69). It sits 15 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. 647 West 174 Street's 94.6 kBtu/ft² across 29,910 sq ft works out to about 2.8 billion Btu (829 MWh-equivalent) in 2024. Its source EUI of 126.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 134,220 kWh of electricity, 23,727 therms of natural gas and 2,779 thousand gallons of water for the year.
Which law requires 647 West 174 Street to report its energy use?
647 West 174 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:21988370:2024). 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
- 812 myrtle Condominium· 29,908 sq ft · score 94 (A)
- Washington Heights Rehab (Group 1&2) - 511 W 177th Street· 29,900 sq ft
- 2428 Matthews Avenue· 29,898 sq ft · score 49 (D)
- Carriage House Management : 1725-1739 Stillwell Avenue· 29,895 sq ft · score 100 (A)
- MMIKP BRONX REALTY LLC· 29,892 sq ft · score 33 (D)
- 3500 Dekalb Avenue· 29,890 sq ft · EUI 97.9 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 647 West 174 Street's energy grade?
647 West 174 Street scores 60 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 647 West 174 Street use?
Its 2024 site energy-use intensity was 94.6 kBtu/ft² (126.2 kBtu/ft² source) across 29,910 sq ft, including 134,220 kWh of electricity and 23,727 therms of natural gas.
What are 647 West 174 Street's carbon emissions?
647 West 174 Street reported 179 tCO₂e of greenhouse-gas emissions (6.0 kgCO₂e/ft²) for 2024.
Where is 647 West 174 Street?
647 West 174 Street is in New York City, New York 10033. Its coordinates are 40.84563, -73.93913 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 647 West 174 Street and when was it built?
647 West 174 Street has 29,910 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1924 as its year built. It is classed as multifamily housing.
Is 647 West 174 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, “647 West 174 Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/647-west-174-street-ea4480a5 (data as of October 2, 2026).