Heschel School - 20 West End Avenue
K-12 School in New York City, NY · 20 West End Avenue · 10023
At a glance
Heschel School - 20 West End Avenue is a 61,320-square-foot K-12 school in New York City, New York, built in 1957. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 73 out of 100 (grade B), a site energy-use intensity of 77.3 kBtu/ft² and 468 tCO₂e of greenhouse-gas emissions. That score is higher than 54% of the 2,052 scored K-12 school buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 73 (band B) |
| Site EUI | 77.3 kBtu/ft² |
| Source EUI | 180.6 kBtu/ft² |
| GHG emissions | 468 tCO₂e |
| GHG intensity | 7.6 kgCO₂e/ft² |
| Electricity | 1,020,635 kWh |
| Natural gas | 12,605 therms |
| Water use | 647 kgal |
| Gross floor area | 61,320 sq ft |
| Source record | nyc:5052689:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 73 | -3 | 77.3 kBtu/ft² | 468 tCO₂e |
| 2023 | 76 | +5 | 76.0 kBtu/ft² | 414 tCO₂e |
| 2022 | 71 | 85.3 kBtu/ft² | 375 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
- 20 West End Avenue
- City
- New York City
- State
- New York
- ZIP
- 10023
- Coordinates
- 40.77233, -73.98992
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Heschel School - 20 West End Avenue 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. Heschel School - 20 West End Avenue's ENERGY STAR score of 73 compares with an average of 64 across the 2,052 that report a score; it scores higher than 54% of them and lower than 44%. Its site EUI of 77.3 kBtu/ft² is about 26% above the average of 61.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.6 kgCO₂e/ft² is about 59% above the group average of 4.8 kgCO₂e/ft².
At 61,320 sq ft, it is about 39% below the average floor area of 101,338 sq ft for those buildings. It was built in 1957, 4 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 Heschel School - 20 West End Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Heschel School - 20 West End Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 71 in 2022 to 73 in 2024 (+2 points); its best year on file was 2023, at 76. Site EUI moved from 85.3 kBtu/ft² (2022) to 77.3 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 375 tCO₂e to 468 tCO₂e over the same span (up 25%).
What does an ENERGY STAR score of 73 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 73 means the building performs better than about 73% of its national peers. BuildingCensus bands the score into report-card grades; 73 falls in band B — above median (70–84). It sits 2 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. Heschel School - 20 West End Avenue's 77.3 kBtu/ft² across 61,320 sq ft works out to about 4.7 billion Btu (1,389 MWh-equivalent) in 2024. Its source EUI of 180.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,020,635 kWh of electricity, 12,605 therms of natural gas and 647 thousand gallons of water for the year.
Which law requires Heschel School - 20 West End Avenue to report its energy use?
Heschel School - 20 West End Avenue 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:5052689:2024). 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 K-12 school buildings in New York City
- X981 (OECID: 0201261; BBL: 2041250015)· 61,280 sq ft · score 29 (D)
- K085 (OECID: 0300097; BBL: 3020080001)· 61,200 sq ft · score 69 (C)
- CONG MACHNE CHAIM· 61,148 sq ft · score 95 (A)
- K814 (OECID: 0301878; BBL: 3039520047)· 61,075 sq ft · score 43 (D)
- Columbia Grammar and Prep - 36 West 93rd Street· 61,000 sq ft · score 62 (C)
- 110 E 149th Street· 60,969 sq ft · score 20 (D)
- 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 Heschel School - 20 West End Avenue's energy grade?
Heschel School - 20 West End Avenue scores 73 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Heschel School - 20 West End Avenue use?
Its 2024 site energy-use intensity was 77.3 kBtu/ft² (180.6 kBtu/ft² source) across 61,320 sq ft, including 1,020,635 kWh of electricity and 12,605 therms of natural gas.
What are Heschel School - 20 West End Avenue's carbon emissions?
Heschel School - 20 West End Avenue reported 468 tCO₂e of greenhouse-gas emissions (7.6 kgCO₂e/ft²) for 2024.
Where is Heschel School - 20 West End Avenue?
Heschel School - 20 West End Avenue is in New York City, New York 10023. Its coordinates are 40.77233, -73.98992 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Heschel School - 20 West End Avenue and when was it built?
Heschel School - 20 West End Avenue has 61,320 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1957 as its year built. It is classed as K-12 school.
Is Heschel School - 20 West End Avenue 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, “Heschel School - 20 West End Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/heschel-school-20-west-end-avenue-191f72de (data as of October 2, 2026).