99 Hillside Avenue - 35144
Multifamily Housing in New York City, NY · 99 Hillside Avenue · 10040
At a glance
99 Hillside Avenue - 35144 is a 245,520-square-foot multifamily housing building in New York City, New York, built in 1959. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 48 out of 100 (grade D), a site energy-use intensity of 83.0 kBtu/ft² and 1,306 tCO₂e of greenhouse-gas emissions. That score is higher than 30% 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 | 48 (band D) |
| Site EUI | 83.0 kBtu/ft² |
| Source EUI | 112.9 kBtu/ft² |
| GHG emissions | 1,306 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 1,058,712 kWh |
| Natural gas | 167,632 therms |
| Water use | 12,226 kgal |
| Gross floor area | 245,520 sq ft |
| Source record | nyc:2805533:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 48 | +5 | 83.0 kBtu/ft² | 1,306 tCO₂e |
| 2023 | 43 | +5 | 85.2 kBtu/ft² | 1,312 tCO₂e |
| 2022 | 38 | 94.7 kBtu/ft² | 1,358 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
- 99 Hillside Avenue
- City
- New York City
- State
- New York
- ZIP
- 10040
- Coordinates
- 40.85978, -73.92704
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 99 Hillside Avenue - 35144 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. 99 Hillside Avenue - 35144's ENERGY STAR score of 48 compares with an average of 63 across the 22,829 that report a score; it scores higher than 30% of them and lower than 69%. Its site EUI of 83.0 kBtu/ft² is about 11% 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 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 245,520 sq ft, it is about 143% above the average floor area of 100,951 sq ft for those buildings. It was built in 1959, 7 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 99 Hillside Avenue - 35144's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 99 Hillside Avenue - 35144, covering report years 2022–2024. Its ENERGY STAR score went from 38 in 2022 to 48 in 2024 (+10 points). Site EUI moved from 94.7 kBtu/ft² (2022) to 83.0 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 1,358 tCO₂e to 1,306 tCO₂e over the same span (down 4%).
What does an ENERGY STAR score of 48 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 48 means the building performs better than about 48% of its national peers. BuildingCensus bands the score into report-card grades; 48 falls in band D — lowest band (1–54). It sits 27 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. 99 Hillside Avenue - 35144's 83.0 kBtu/ft² across 245,520 sq ft works out to about 20.4 billion Btu (5,972 MWh-equivalent) in 2024. Its source EUI of 112.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,058,712 kWh of electricity, 167,632 therms of natural gas and 12,226 thousand gallons of water for the year.
Which law requires 99 Hillside Avenue - 35144 to report its energy use?
99 Hillside Avenue - 35144 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:2805533:2024). 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
- Orsid - 189 Schermerhorn St· 245,514 sq ft · EUI 75.8 kBtu/ft²
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- 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
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Frequently asked questions
What is 99 Hillside Avenue - 35144's energy grade?
99 Hillside Avenue - 35144 scores 48 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 99 Hillside Avenue - 35144 use?
Its 2024 site energy-use intensity was 83.0 kBtu/ft² (112.9 kBtu/ft² source) across 245,520 sq ft, including 1,058,712 kWh of electricity and 167,632 therms of natural gas.
What are 99 Hillside Avenue - 35144's carbon emissions?
99 Hillside Avenue - 35144 reported 1,306 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2024.
Where is 99 Hillside Avenue - 35144?
99 Hillside Avenue - 35144 is in New York City, New York 10040. Its coordinates are 40.85978, -73.92704 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 99 Hillside Avenue - 35144 and when was it built?
99 Hillside Avenue - 35144 has 245,520 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1959 as its year built. It is classed as multifamily housing.
Is 99 Hillside Avenue - 35144 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, “99 Hillside Avenue - 35144, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/99-hillside-avenue-35144-218bbc37 (data as of October 2, 2026).