BuildingCensus
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Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002)

K-12 School in New York City, NY · 230-17 Hillside Avenue · 11427

At a glance

Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) is a 371,973-square-foot K-12 school at 230-17 Hillside Avenue in New York City, New York, built in 1955. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 40.2 kBtu/ft² and 1,137 tCO₂e of greenhouse-gas emissions. That score is higher than 92% of the 2,052 scored K-12 school buildings in New York City.

ENERGY STAR score
96
band A · 2024
Site EUI
40.2
kBtu/ft²
GHG emissions
1,137
tCO₂e
GHG intensity
3.1
kgCO₂e/ft²
Floor area
371,973
sq ft
Year built
1955
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Local Law 84 (LL84) · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score96 (band A)
Site EUI40.2 kBtu/ft²
Source EUI54.8 kBtu/ft²
GHG emissions1,137 tCO₂e
GHG intensity3.1 kgCO₂e/ft²
Electricity862,122 kWh
Natural gas7,386 therms
Water use717 kgal
Gross floor area371,973 sq ft
Source recordnyc:1836514:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest96±040.2 kBtu/ft²1,137 tCO₂e
202396+240.5 kBtu/ft²1,180 tCO₂e
20229447.8 kBtu/ft²1,372 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.

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Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
230-17 Hillside Avenue
State
New York
ZIP
11427
Coordinates
40.73307, -73.73876

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in New York City · biggest emitters

How does Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) 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. Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002)'s ENERGY STAR score of 96 compares with an average of 64 across the 2,052 that report a score; it scores higher than 92% of them and lower than 7%. Its site EUI of 40.2 kBtu/ft² is about 34% 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 3.1 kgCO₂e/ft² is about 36% below the group average of 4.8 kgCO₂e/ft².

At 371,973 sq ft, it is about 267% above the average floor area of 101,338 sq ft for those buildings. Its 1955 construction date is close to 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 Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002)'s energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002), covering report years 2022–2024. Its ENERGY STAR score went from 94 in 2022 to 96 in 2024 (+2 points); its best year on file was 2023, at 96. Site EUI moved from 47.8 kBtu/ft² (2022) to 40.2 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 1,372 tCO₂e to 1,137 tCO₂e over the same span (down 17%).

What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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. Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002)'s 40.2 kBtu/ft² across 371,973 sq ft works out to about 15 billion Btu (4,382 MWh-equivalent) in 2024. Its source EUI of 54.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 862,122 kWh of electricity, 7,386 therms of natural gas and 717 thousand gallons of water for the year.

Which law requires Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) to report its energy use?

Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) 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:1836514:2024). 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

Frequently asked questions

What is Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002)'s energy grade?

Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) scores 96 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 Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) use?

Its 2024 site energy-use intensity was 40.2 kBtu/ft² (54.8 kBtu/ft² source) across 371,973 sq ft, including 862,122 kWh of electricity and 7,386 therms of natural gas.

What are Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002)'s carbon emissions?

Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) reported 1,137 tCO₂e of greenhouse-gas emissions (3.1 kgCO₂e/ft²) for 2024.

Where is Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002)?

Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) is at 230-17 Hillside Avenue, in New York City, New York 11427. Its coordinates are 40.73307, -73.73876 (latitude, longitude), as published in the Energy and Water Data Disclosure file.

How big is Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) and when was it built?

Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) has 371,973 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1955 as its year built. It is classed as K-12 school.

Is Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002) 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, “Q435, Q436 (OECID: 0400226, 0400236; BBL: 4079300002), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/q435-q436-oecid-0400226-0400236-bbl-4079300002-242b0d48 (data as of October 2, 2026).