35 - Our Lady Queen of Martyrs School
K-12 School in New York City, NY · 71 Arden St · 10040
At a glance
35 - Our Lady Queen of Martyrs School is a 43,100-square-foot K-12 school at 71 Arden St in New York City, New York, built in 1951. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 18.7 kBtu/ft² and 93 tCO₂e of greenhouse-gas emissions. That score is higher than 75% 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 | 85 (band A) |
| Site EUI | 18.7 kBtu/ft² |
| Source EUI | 52.4 kBtu/ft² |
| GHG emissions | 93 tCO₂e |
| GHG intensity | 2.1 kgCO₂e/ft² |
| Electricity | 236,518 kWh |
| Natural gas | 0 therms |
| Water use | 219 kgal |
| Gross floor area | 43,100 sq ft |
| Source record | nyc:6700780:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 85 | +14 | 18.7 kBtu/ft² | 93 tCO₂e |
| 2023 | 71 | -10 | 23.4 kBtu/ft² | 106 tCO₂e |
| 2022 | 81 | 22.8 kBtu/ft² | 80 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 71 Arden St
- City
- New York City
- State
- New York
- ZIP
- 10040
- Coordinates
- 40.86319, -73.92793
Within ~1 km
Nearby benchmarked buildings
- DYCKMANscore 11
Multifamily Housing · 1,122,000 sq ft
K-12 School · 408,000 sq ft
Multifamily Housing · 347,816 sq ft
- 465 - 4650 Broadwayscore 100
Multifamily Housing · 335,437 sq ft
Multifamily Housing · 316,007 sq ft
- 45 Fairview Avenue - 25125score 76
Multifamily Housing · 311,727 sq ft
See also: most efficient in New York City · biggest emitters
How does 35 - Our Lady Queen of Martyrs School 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. 35 - Our Lady Queen of Martyrs School's ENERGY STAR score of 85 compares with an average of 64 across the 2,052 that report a score; it scores higher than 75% of them and lower than 23%. Its site EUI of 18.7 kBtu/ft² is about 69% 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 2.1 kgCO₂e/ft² is about 55% below the group average of 4.8 kgCO₂e/ft².
At 43,100 sq ft, it is about 57% below the average floor area of 101,338 sq ft for those buildings. Its 1951 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 35 - Our Lady Queen of Martyrs School's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 35 - Our Lady Queen of Martyrs School, covering report years 2022–2024. Its ENERGY STAR score went from 81 in 2022 to 85 in 2024 (+4 points). Site EUI moved from 22.8 kBtu/ft² (2022) to 18.7 kBtu/ft² (2024), a 18% decrease. Reported emissions went from 80 tCO₂e to 93 tCO₂e over the same span (up 17%).
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 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. 35 - Our Lady Queen of Martyrs School's 18.7 kBtu/ft² across 43,100 sq ft works out to about 0.8 billion Btu (236 MWh-equivalent) in 2024. Its source EUI of 52.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 236,518 kWh of electricity, 0 therms of natural gas and 219 thousand gallons of water for the year.
Which law requires 35 - Our Lady Queen of Martyrs School to report its energy use?
35 - Our Lady Queen of Martyrs School 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:6700780:2024). 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
- Al Madinah School· 43,000 sq ft · score 80 (B)
- 86-84 Palo Alto Avenue· 42,872 sq ft · score 98 (A)
- 210 East 77 Street· 42,662 sq ft · score 35 (D)
- 760 Dekalb Avenue· 42,500 sq ft · score 100 (A)
- 1349 Inwood Ave· 42,500 sq ft · score 87 (A)
- 7801 BAY PARKWAY· 42,404 sq ft · score 18 (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 35 - Our Lady Queen of Martyrs School's energy grade?
35 - Our Lady Queen of Martyrs School scores 85 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 35 - Our Lady Queen of Martyrs School use?
Its 2024 site energy-use intensity was 18.7 kBtu/ft² (52.4 kBtu/ft² source) across 43,100 sq ft, including 236,518 kWh of electricity and 0 therms of natural gas.
What are 35 - Our Lady Queen of Martyrs School's carbon emissions?
35 - Our Lady Queen of Martyrs School reported 93 tCO₂e of greenhouse-gas emissions (2.1 kgCO₂e/ft²) for 2024.
Where is 35 - Our Lady Queen of Martyrs School?
35 - Our Lady Queen of Martyrs School is at 71 Arden St, in New York City, New York 10040. Its coordinates are 40.86319, -73.92793 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 35 - Our Lady Queen of Martyrs School and when was it built?
35 - Our Lady Queen of Martyrs School has 43,100 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1951 as its year built. It is classed as K-12 school.
Is 35 - Our Lady Queen of Martyrs School 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “35 - Our Lady Queen of Martyrs School, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/35-our-lady-queen-of-martyrs-school-bb6930a7 (data as of October 2, 2026).