Hillside Estates
Multifamily Housing in New York City, NY · 8923 171 Street · 11432
At a glance
Hillside Estates is a 153,250-square-foot multifamily housing building at 8923 171 Street in New York City, New York, built in 1962. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 50 out of 100 (grade D), a site energy-use intensity of 82.2 kBtu/ft² and 800 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 | 50 (band D) |
| Site EUI | 82.2 kBtu/ft² |
| Source EUI | 110.4 kBtu/ft² |
| GHG emissions | 800 tCO₂e |
| GHG intensity | 5.2 kgCO₂e/ft² |
| Electricity | 617,171 kWh |
| Natural gas | 104,916 therms |
| Gross floor area | 153,250 sq ft |
| Source record | nyc:6296228:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 50 | +3 | 82.2 kBtu/ft² | 800 tCO₂e |
| 2023 | 47 | -9 | 82.4 kBtu/ft² | 785 tCO₂e |
| 2022 | 56 | 83.1 kBtu/ft² | 744 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
- 8923 171 Street
- City
- New York City
- State
- New York
- ZIP
- 11432
- Coordinates
- 40.70965, -73.78996
Within ~1 km
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How does Hillside Estates 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. Hillside Estates's ENERGY STAR score of 50 compares with an average of 63 across the 22,829 that report a score; it scores higher than 32% of them and lower than 68%. Its site EUI of 82.2 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.2 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 153,250 sq ft, it is about 52% above the average floor area of 100,951 sq ft for those buildings. It was built in 1962, 10 years later 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 Hillside Estates's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Hillside Estates, covering report years 2022–2024. Its ENERGY STAR score went from 56 in 2022 to 50 in 2024 (-6 points); its best year on file was 2022, at 56. Site EUI moved from 83.1 kBtu/ft² (2022) to 82.2 kBtu/ft² (2024), a 1% decrease. Reported emissions went from 744 tCO₂e to 800 tCO₂e over the same span (up 8%).
What does an ENERGY STAR score of 50 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 50 means the building performs better than about 50% of its national peers. BuildingCensus bands the score into report-card grades; 50 falls in band D — lowest band (1–54). It sits 25 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. Hillside Estates's 82.2 kBtu/ft² across 153,250 sq ft works out to about 12.6 billion Btu (3,692 MWh-equivalent) in 2024. Its source EUI of 110.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 617,171 kWh of electricity and 104,916 therms of natural gas for the year.
Which law requires Hillside Estates to report its energy use?
Hillside Estates 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:6296228:2024). 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
- 1490 Dumont Avenue· 153,198 sq ft
- 3845-3855 Shore Parkway· 153,192 sq ft · score 62 (C)
- 550 Park Ave· 153,190 sq ft · score 52 (D)
- 1 Sickles Street· 153,138 sq ft · score 48 (D)
- Allied - 304 East 65th Street· 153,116 sq ft · score 17 (D)
- 304 West 117th Street· 153,107 sq ft · score 46 (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 Hillside Estates's energy grade?
Hillside Estates scores 50 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 Hillside Estates use?
Its 2024 site energy-use intensity was 82.2 kBtu/ft² (110.4 kBtu/ft² source) across 153,250 sq ft, including 617,171 kWh of electricity and 104,916 therms of natural gas.
What are Hillside Estates's carbon emissions?
Hillside Estates reported 800 tCO₂e of greenhouse-gas emissions (5.2 kgCO₂e/ft²) for 2024.
Where is Hillside Estates?
Hillside Estates is at 8923 171 Street, in New York City, New York 11432. Its coordinates are 40.70965, -73.78996 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Hillside Estates and when was it built?
Hillside Estates has 153,250 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1962 as its year built. It is classed as multifamily housing.
Is Hillside Estates 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, “Hillside Estates, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/hillside-estates-51484489 (data as of October 2, 2026).