Dalton School - 53 East 91st Street
K-12 School in New York City, NY · 53 East 91st Street · 10128
At a glance
Dalton School - 53 East 91st Street is a 39,279-square-foot K-12 school in New York City, New York, built in 1910. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 13 out of 100 (grade D), a site energy-use intensity of 83.4 kBtu/ft² and 256 tCO₂e of greenhouse-gas emissions. That score is higher than 6% 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 | 13 (band D) |
| Site EUI | 83.4 kBtu/ft² |
| Source EUI | 146.8 kBtu/ft² |
| GHG emissions | 256 tCO₂e |
| GHG intensity | 6.5 kgCO₂e/ft² |
| Electricity | 389,642 kWh |
| Natural gas | 19,467 therms |
| Gross floor area | 39,279 sq ft |
| Source record | nyc:12743368:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 13 | -1 | 83.4 kBtu/ft² | 256 tCO₂e |
| 2023 | 14 | -2 | 78.4 kBtu/ft² | 238 tCO₂e |
| 2022 | 16 | 84.5 kBtu/ft² | 219 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
- 53 East 91st Street
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.78382, -73.95594
Within ~1 km
Nearby benchmarked buildings
- WASHINGTON Bldgs 1-4, 15score —
Multifamily Housing · 3,094,106 sq ft
- Benchmarking Group - 226score —
Other - Recreation · 2,345,603 sq ft
Museum · 2,153,282 sq ft
- WASHINGTONscore 30
Multifamily Housing · 1,404,388 sq ft
- WASHINGTON Bldgs 5-10score —
Multifamily Housing · 1,404,388 sq ft
Multifamily Housing · 1,384,883 sq ft
See also: most efficient in New York City · biggest emitters
How does Dalton School - 53 East 91st Street 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. Dalton School - 53 East 91st Street's ENERGY STAR score of 13 compares with an average of 64 across the 2,052 that report a score; it scores higher than 6% of them and lower than 94%. Its site EUI of 83.4 kBtu/ft² is about 36% 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 6.5 kgCO₂e/ft² is about 36% above the group average of 4.8 kgCO₂e/ft².
At 39,279 sq ft, it is about 61% below the average floor area of 101,338 sq ft for those buildings. It was built in 1910, 43 years earlier 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 Dalton School - 53 East 91st Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Dalton School - 53 East 91st Street, covering report years 2022–2024. Its ENERGY STAR score went from 16 in 2022 to 13 in 2024 (-3 points); its best year on file was 2022, at 16. Site EUI moved from 84.5 kBtu/ft² (2022) to 83.4 kBtu/ft² (2024), a 1% decrease. Reported emissions went from 219 tCO₂e to 256 tCO₂e over the same span (up 17%).
What does an ENERGY STAR score of 13 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 13 means the building performs better than about 13% of its national peers. BuildingCensus bands the score into report-card grades; 13 falls in band D — lowest band (1–54). It sits 62 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. Dalton School - 53 East 91st Street's 83.4 kBtu/ft² across 39,279 sq ft works out to about 3.3 billion Btu (960 MWh-equivalent) in 2024. Its source EUI of 146.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 389,642 kWh of electricity and 19,467 therms of natural gas for the year.
Which law requires Dalton School - 53 East 91st Street to report its energy use?
Dalton School - 53 East 91st Street 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:12743368:2024). 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
- StMStM New School 249 Jerome St· 39,219 sq ft
- 1349 Inwood Avenue· 39,118 sq ft · score 31 (D)
- 2390 Pitkin Avenue· 39,000 sq ft · score 48 (D)
- AKAM - 2390 Pitkin Avenue· 39,000 sq ft · score 34 (D)
- 210 East 77 Street· 38,784 sq ft · score 40 (D)
- Birch Wathen Lenox School· 38,784 sq ft · score 68 (C)
- 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 Dalton School - 53 East 91st Street's energy grade?
Dalton School - 53 East 91st Street scores 13 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Dalton School - 53 East 91st Street use?
Its 2024 site energy-use intensity was 83.4 kBtu/ft² (146.8 kBtu/ft² source) across 39,279 sq ft, including 389,642 kWh of electricity and 19,467 therms of natural gas.
What are Dalton School - 53 East 91st Street's carbon emissions?
Dalton School - 53 East 91st Street reported 256 tCO₂e of greenhouse-gas emissions (6.5 kgCO₂e/ft²) for 2024.
Where is Dalton School - 53 East 91st Street?
Dalton School - 53 East 91st Street is in New York City, New York 10128. Its coordinates are 40.78382, -73.95594 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Dalton School - 53 East 91st Street and when was it built?
Dalton School - 53 East 91st Street has 39,279 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1910 as its year built. It is classed as K-12 school.
Is Dalton School - 53 East 91st Street 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, “Dalton School - 53 East 91st Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/dalton-school-53-east-91st-street-51e6a382 (data as of October 2, 2026).