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
◆ Loading map…
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 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
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.

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.

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