BuildingCensus
A

Upper School

K-12 School in New York City, NY · 20 E 91 St · 10128

ENERGY STAR score
85
band A · 2024
Site EUI
40.8
kBtu/ft²
GHG emissions
451
tCO₂e
GHG intensity
4.1
kgCO₂e/ft²
Floor area
109,970
sq ft
Year built
1929
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 score85 (band A)
Site EUI40.8 kBtu/ft²
Source EUI97.4 kBtu/ft²
GHG emissions451 tCO₂e
GHG intensity4.1 kgCO₂e/ft²
Electricity1,005,824 kWh
Natural gas10,542 therms
Gross floor area109,970 sq ft
Source recordnyc:19834304:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest85+1940.8 kBtu/ft²451 tCO₂e
202366+1456.4 kBtu/ft²563 tCO₂e
20225268.9 kBtu/ft²565 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.

Program details →

Ownership

No owner listed in the disclosure.

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Location

Address
20 E 91 St
State
New York
ZIP
10128
Coordinates
40.78436, -73.95727

Within ~1 km

Nearby benchmarked buildings

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

Frequently asked questions

What is Upper School's energy grade?

Upper 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 Upper School use?

Its 2024 site energy-use intensity was 40.8 kBtu/ft² (97.4 kBtu/ft² source) across 109,970 sq ft, including 1,005,824 kWh of electricity and 10,542 therms of natural gas.

What are Upper School's carbon emissions?

Upper School reported 451 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 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.

Dataset updated . Source: Energy and Water Data Disclosure disclosure, record nyc:19834304:2024.