Coney 509 West 174th Street
Multifamily Housing in New York City, NY · 509 West 174th Street · 10033
At a glance
Coney 509 West 174th Street is a 23,505-square-foot multifamily housing building in New York City, New York, built in 1910. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 3 out of 100 (grade D), a site energy-use intensity of 131.7 kBtu/ft² and 193 tCO₂e of greenhouse-gas emissions. That score is higher than 3% 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 | 3 (band D) |
| Site EUI | 131.7 kBtu/ft² |
| Source EUI | 172.7 kBtu/ft² |
| GHG emissions | 193 tCO₂e |
| GHG intensity | 8.2 kgCO₂e/ft² |
| Electricity | 135,381 kWh |
| Natural gas | 26,343 therms |
| Gross floor area | 23,505 sq ft |
| Source record | nyc:6672878:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 3 | ±0 | 131.7 kBtu/ft² | 193 tCO₂e |
| 2023 | 3 | -6 | 129.1 kBtu/ft² | 186 tCO₂e |
| 2022 | 9 | 124.9 kBtu/ft² | 168 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
- 509 West 174th Street
- City
- New York City
- State
- New York
- ZIP
- 10033
- Coordinates
- 40.84376, -73.93461
Within ~1 km
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How does Coney 509 West 174th 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. Coney 509 West 174th Street's ENERGY STAR score of 3 compares with an average of 63 across the 22,829 that report a score; it scores higher than 3% of them and lower than 96%. Its site EUI of 131.7 kBtu/ft² is about 76% 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 8.2 kgCO₂e/ft² is about 58% above the group average of 5.2 kgCO₂e/ft².
At 23,505 sq ft, it is about 77% below the average floor area of 100,951 sq ft for those buildings. It was built in 1910, 42 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 Coney 509 West 174th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Coney 509 West 174th Street, covering report years 2022–2024. Its ENERGY STAR score went from 9 in 2022 to 3 in 2024 (-6 points); its best year on file was 2022, at 9. Site EUI moved from 124.9 kBtu/ft² (2022) to 131.7 kBtu/ft² (2024), an 5% increase. Reported emissions went from 168 tCO₂e to 193 tCO₂e over the same span (up 15%).
What does an ENERGY STAR score of 3 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 3 means the building performs better than about 3% of its national peers. BuildingCensus bands the score into report-card grades; 3 falls in band D — lowest band (1–54). It sits 72 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. Coney 509 West 174th Street's 131.7 kBtu/ft² across 23,505 sq ft works out to about 3.1 billion Btu (907 MWh-equivalent) in 2024. Its source EUI of 172.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 135,381 kWh of electricity and 26,343 therms of natural gas for the year.
Which law requires Coney 509 West 174th Street to report its energy use?
Coney 509 West 174th 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:6672878:2024). 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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- 680 Howard ave· 23,400 sq ft · EUI 12.4 kBtu/ft²
- 512 West 122nd Street· 23,400 sq ft
- 383 HEWES STREET· 23,400 sq ft · score 14 (D)
- 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 Coney 509 West 174th Street's energy grade?
Coney 509 West 174th Street scores 3 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 Coney 509 West 174th Street use?
Its 2024 site energy-use intensity was 131.7 kBtu/ft² (172.7 kBtu/ft² source) across 23,505 sq ft, including 135,381 kWh of electricity and 26,343 therms of natural gas.
What are Coney 509 West 174th Street's carbon emissions?
Coney 509 West 174th Street reported 193 tCO₂e of greenhouse-gas emissions (8.2 kgCO₂e/ft²) for 2024.
Where is Coney 509 West 174th Street?
Coney 509 West 174th Street is in New York City, New York 10033. Its coordinates are 40.84376, -73.93461 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Coney 509 West 174th Street and when was it built?
Coney 509 West 174th Street has 23,505 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1910 as its year built. It is classed as multifamily housing.
Is Coney 509 West 174th 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, “Coney 509 West 174th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/coney-509-west-174th-street-8f71f20e (data as of October 2, 2026).