HCZ - 35 E 125th St.
K-12 School in New York City, NY · 35. E. 125th St. · 10035
At a glance
HCZ - 35 E 125th St. is a 92,969-square-foot K-12 school at 35. E. 125th St. in New York City, New York, built in 2003. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 108.6 kBtu/ft² and 882 tCO₂e of greenhouse-gas emissions. That score is higher than 58% 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 | 75 (band B) |
| Site EUI | 108.6 kBtu/ft² |
| Source EUI | 219.0 kBtu/ft² |
| GHG emissions | 882 tCO₂e |
| GHG intensity | 9.5 kgCO₂e/ft² |
| Electricity | 1,634,241 kWh |
| Natural gas | 45,245 therms |
| Gross floor area | 92,969 sq ft |
| Source record | nyc:8102052:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 75 | -5 | 108.6 kBtu/ft² | 882 tCO₂e |
| 2023 | 80 | +8 | 102.7 kBtu/ft² | 791 tCO₂e |
| 2022 | 72 | 115.0 kBtu/ft² | 755 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
- 35. E. 125th St.
- City
- New York City
- State
- New York
- ZIP
- 10035
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in New York City · biggest emitters
How does HCZ - 35 E 125th St. 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. HCZ - 35 E 125th St.'s ENERGY STAR score of 75 compares with an average of 64 across the 2,052 that report a score; it scores higher than 58% of them and lower than 40%. Its site EUI of 108.6 kBtu/ft² is about 77% 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 9.5 kgCO₂e/ft² is about twice the group average of 4.8 kgCO₂e/ft².
At 92,969 sq ft, it is roughly in line with the average floor area of 101,338 sq ft for those buildings. It was built in 2003, 50 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 HCZ - 35 E 125th St.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for HCZ - 35 E 125th St., covering report years 2022–2024. Its ENERGY STAR score went from 72 in 2022 to 75 in 2024 (+3 points); its best year on file was 2023, at 80. Site EUI moved from 115.0 kBtu/ft² (2022) to 108.6 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 755 tCO₂e to 882 tCO₂e over the same span (up 17%).
What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 falls in band B — above median (70–84). 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. HCZ - 35 E 125th St.'s 108.6 kBtu/ft² across 92,969 sq ft works out to about 10.1 billion Btu (2,959 MWh-equivalent) in 2024. Its source EUI of 219.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,634,241 kWh of electricity and 45,245 therms of natural gas for the year.
Which law requires HCZ - 35 E 125th St. to report its energy use?
HCZ - 35 E 125th St. 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:8102052:2024). 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
- Q138 (OECID: 0400124; BBL: 4135780001)· 92,639 sq ft · score 24 (D)
- DOE_7519_R031· 92,600 sq ft · score 74 (B)
- DOE_7284_Q186· 92,575 sq ft · score 62 (C)
- X061 (OECID: 0200096; BBL: 2029390045)· 92,500 sq ft · score 37 (D)
- DOE_7294_Q197· 92,500 sq ft · score 74 (B)
- Q215 (OECID: 0400890; BBL: 4157720031)· 92,500 sq ft · score 84 (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 HCZ - 35 E 125th St.'s energy grade?
HCZ - 35 E 125th St. scores 75 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 HCZ - 35 E 125th St. use?
Its 2024 site energy-use intensity was 108.6 kBtu/ft² (219.0 kBtu/ft² source) across 92,969 sq ft, including 1,634,241 kWh of electricity and 45,245 therms of natural gas.
What are HCZ - 35 E 125th St.'s carbon emissions?
HCZ - 35 E 125th St. reported 882 tCO₂e of greenhouse-gas emissions (9.5 kgCO₂e/ft²) for 2024.
Where is HCZ - 35 E 125th St.?
HCZ - 35 E 125th St. is at 35. E. 125th St., in New York City, New York 10035.
How big is HCZ - 35 E 125th St. and when was it built?
HCZ - 35 E 125th St. has 92,969 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2003 as its year built. It is classed as K-12 school.
Is HCZ - 35 E 125th St. 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, “HCZ - 35 E 125th St., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/hcz-35-e-125th-st-ac3450fe (data as of October 2, 2026).