Blackstone 238 LLC
Multifamily Housing in New York City, NY · 3707 Blackstone Ave · 10463
At a glance
Blackstone 238 LLC is a 92,619-square-foot multifamily housing building at 3707 Blackstone Ave in New York City, New York, built in 2021. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 36.5 kBtu/ft² and 296 tCO₂e of greenhouse-gas emissions. That score is higher than 79% 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 | 92 (band A) |
| Site EUI | 36.5 kBtu/ft² |
| Source EUI | 73.8 kBtu/ft² |
| GHG emissions | 296 tCO₂e |
| GHG intensity | 3.2 kgCO₂e/ft² |
| Electricity | 549,967 kWh |
| Natural gas | 15,041 therms |
| Gross floor area | 92,619 sq ft |
| Source record | nyc:22817987:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 92 | -1 | 36.5 kBtu/ft² | 296 tCO₂e |
| 2023 | 93 | -6 | 35.5 kBtu/ft² | 272 tCO₂e |
| 2022 | 99 | 28.3 kBtu/ft² | 201 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
- 3707 Blackstone Ave
- City
- New York City
- State
- New York
- ZIP
- 10463
- Coordinates
- 40.88848, -73.91168
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Blackstone 238 LLC 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. Blackstone 238 LLC's ENERGY STAR score of 92 compares with an average of 63 across the 22,829 that report a score; it scores higher than 79% of them and lower than 20%. Its site EUI of 36.5 kBtu/ft² is about half of the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.2 kgCO₂e/ft² is about 39% below the group average of 5.2 kgCO₂e/ft².
At 92,619 sq ft, it is roughly in line with the average floor area of 100,951 sq ft for those buildings. It was built in 2021, 69 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 Blackstone 238 LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Blackstone 238 LLC, covering report years 2022–2024. Its ENERGY STAR score went from 99 in 2022 to 92 in 2024 (-7 points); its best year on file was 2022, at 99. Site EUI moved from 28.3 kBtu/ft² (2022) to 36.5 kBtu/ft² (2024), an 29% increase. Reported emissions went from 201 tCO₂e to 296 tCO₂e over the same span (up 47%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Blackstone 238 LLC's 36.5 kBtu/ft² across 92,619 sq ft works out to about 3.4 billion Btu (991 MWh-equivalent) in 2024. Its source EUI of 73.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 549,967 kWh of electricity and 15,041 therms of natural gas for the year.
Which law requires Blackstone 238 LLC to report its energy use?
Blackstone 238 LLC 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:22817987:2024). 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
- Milton Gordon: 3551 DEKALB AVENUE· 92,610 sq ft · score 41 (D)
- ELH - 1105 Jerome Avenue· 92,600 sq ft · score 75 (B)
- 1105 JEROME AVENUE· 92,600 sq ft
- Copy of Lovett - 110-31 73rd Road· 92,598 sq ft · score 52 (D)
- Lovett - 110-31 73rd Road· 92,598 sq ft · EUI 105.4 kBtu/ft²
- A&E - EAE Atlantic - 370 Fort Washington Avenue· 92,580 sq ft · score 64 (C)
- 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 Blackstone 238 LLC's energy grade?
Blackstone 238 LLC scores 92 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Blackstone 238 LLC use?
Its 2024 site energy-use intensity was 36.5 kBtu/ft² (73.8 kBtu/ft² source) across 92,619 sq ft, including 549,967 kWh of electricity and 15,041 therms of natural gas.
What are Blackstone 238 LLC's carbon emissions?
Blackstone 238 LLC reported 296 tCO₂e of greenhouse-gas emissions (3.2 kgCO₂e/ft²) for 2024.
Where is Blackstone 238 LLC?
Blackstone 238 LLC is at 3707 Blackstone Ave, in New York City, New York 10463. Its coordinates are 40.88848, -73.91168 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Blackstone 238 LLC and when was it built?
Blackstone 238 LLC has 92,619 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2021 as its year built. It is classed as multifamily housing.
Is Blackstone 238 LLC 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, “Blackstone 238 LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/blackstone-238-llc-0e0ef6b9 (data as of October 2, 2026).