Siach Yitzchok
K-12 School in New York City, NY · 10-45 Beach 9th Street · 11691
At a glance
Siach Yitzchok is a 40,871-square-foot K-12 school at 10-45 Beach 9th Street in New York City, New York, built in 2020. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 21 out of 100 (grade D), a site energy-use intensity of 48.3 kBtu/ft² and 190 tCO₂e of greenhouse-gas emissions. That score is higher than 9% of the 2,052 scored K-12 school buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 21 (band D) |
| Site EUI | 48.3 kBtu/ft² |
| Source EUI | 116.4 kBtu/ft² |
| GHG emissions | 190 tCO₂e |
| GHG intensity | 4.7 kgCO₂e/ft² |
| Electricity | 449,770 kWh |
| Natural gas | 4,402 therms |
| Water use | 217 kgal |
| Gross floor area | 40,871 sq ft |
| Source record | nyc:15549725:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 21 | -1 | 48.3 kBtu/ft² | 190 tCO₂e |
| 2022 | 22 | 51.3 kBtu/ft² | 164 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
- 10-45 Beach 9th Street
- City
- New York City
- State
- New York
- ZIP
- 11691
- Coordinates
- 40.60433, -73.74572
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Siach Yitzchok compare with other K-12 school buildings in New York City?
The latest disclosures cover 2,301 K-12 school buildings in New York City, out of 48,310 buildings citywide. Siach Yitzchok's ENERGY STAR score of 21 compares with an average of 64 across the 2,052 that report a score; it scores higher than 9% of them and lower than 90%. Its site EUI of 48.3 kBtu/ft² is about 21% below the average of 61.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.7 kgCO₂e/ft² is roughly in line with the group average of 4.8 kgCO₂e/ft².
At 40,871 sq ft, it is about 60% below the average floor area of 101,338 sq ft for those buildings. It was built in 2020, 67 years later than the group's average year built (1954). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has Siach Yitzchok's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Siach Yitzchok, covering report years 2022–2023. Its ENERGY STAR score went from 22 in 2022 to 21 in 2023 (-1 points); its best year on file was 2022, at 22. Site EUI moved from 51.3 kBtu/ft² (2022) to 48.3 kBtu/ft² (2023), a 6% decrease. Reported emissions went from 164 tCO₂e to 190 tCO₂e over the same span (up 16%).
What does an ENERGY STAR score of 21 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 21 means the building performs better than about 21% of its national peers. BuildingCensus bands the score into report-card grades; 21 falls in band D — lowest band (1–54). It sits 54 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. Siach Yitzchok's 48.3 kBtu/ft² across 40,871 sq ft works out to about 2 billion Btu (579 MWh-equivalent) in 2023. Its source EUI of 116.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 449,770 kWh of electricity, 4,402 therms of natural gas and 217 thousand gallons of water for the year.
Which law requires Siach Yitzchok to report its energy use?
Siach Yitzchok 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 2023 disclosure (source record nyc:15549725:2023). 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 K-12 school buildings in New York City
- R021 (OECID: 0500044; BBL: 5011350001)· 40,860 sq ft · score 77 (B)
- RAC St Joseph Patron 177 Suydam St· 40,840 sq ft · score 98 (A)
- R048 (OECID: 0500070; BBL: 5031710001)· 40,800 sq ft · score 63 (C)
- SRB School (DOE) 4438331· 40,780 sq ft · score 62 (C)
- 321 Palmetto Street· 40,771 sq ft · score 2 (D)
- 3458 3rd Ave· 40,756 sq ft · score 74 (B)
- K-12 School buildings in New York City· 2,301 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 Siach Yitzchok's energy grade?
Siach Yitzchok scores 21 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Siach Yitzchok use?
Its 2023 site energy-use intensity was 48.3 kBtu/ft² (116.4 kBtu/ft² source) across 40,871 sq ft, including 449,770 kWh of electricity and 4,402 therms of natural gas.
What are Siach Yitzchok's carbon emissions?
Siach Yitzchok reported 190 tCO₂e of greenhouse-gas emissions (4.7 kgCO₂e/ft²) for 2023.
Where is Siach Yitzchok?
Siach Yitzchok is at 10-45 Beach 9th Street, in New York City, New York 11691. Its coordinates are 40.60433, -73.74572 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Siach Yitzchok and when was it built?
Siach Yitzchok has 40,871 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2020 as its year built. It is classed as K-12 school.
Is Siach Yitzchok covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “Siach Yitzchok, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/siach-yitzchok-bd2f193b (data as of October 2, 2026).