BuildingCensus
C

27 Union Sq

Office in New York City, NY · 27 Union Square · 10003

ENERGY STAR score
65
band C · 2024
Site EUI
85.9
kBtu/ft²
GHG emissions
459
tCO₂e
GHG intensity
8.7
kgCO₂e/ft²
Floor area
52,850
sq ft
Year built
1950
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 score65 (band C)
Site EUI85.9 kBtu/ft²
Source EUI196.2 kBtu/ft²
GHG emissions459 tCO₂e
GHG intensity8.7 kgCO₂e/ft²
Electricity943,981 kWh
Natural gas4,497 therms
Water use2,318 kgal
Gross floor area52,850 sq ft
Source recordnyc:9051738:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest65-385.9 kBtu/ft²459 tCO₂e
202368-1184.7 kBtu/ft²429 tCO₂e
20227973.6 kBtu/ft²311 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
27 Union Square
State
New York
ZIP
10003
Coordinates
40.73636, -73.99089

Within ~1 km

Nearby benchmarked buildings

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

Frequently asked questions

What is 27 Union Sq's energy grade?

27 Union Sq scores 65 out of 100 on ENERGY STAR — band C (Below median (55–69)) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 27 Union Sq use?

Its 2024 site energy-use intensity was 85.9 kBtu/ft² (196.2 kBtu/ft² source) across 52,850 sq ft, including 943,981 kWh of electricity and 4,497 therms of natural gas.

What are 27 Union Sq's carbon emissions?

27 Union Sq reported 459 tCO₂e of greenhouse-gas emissions (8.7 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:9051738:2024.