BuildingCensus
D

DCAS_1010_City Hall

Office in New York City, NY · City Hall Park · 10007

At a glance

DCAS_1010_City Hall is a 52,000-square-foot office building at City Hall Park in New York City, New York, built in 1811. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 652.3 kBtu/ft² and 3,763 tCO₂e of greenhouse-gas emissions. That score is higher than 0% of the 2,519 scored office buildings in New York City.

ENERGY STAR score
1
band D · 2024
Site EUI
652.3
kBtu/ft²
GHG emissions
3,763
tCO₂e
GHG intensity
72.4
kgCO₂e/ft²
Floor area
52,000
sq ft
Year built
1811
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 score1 (band D)
Site EUI652.3 kBtu/ft²
Source EUI1737.3 kBtu/ft²
GHG emissions3,763 tCO₂e
GHG intensity72.4 kgCO₂e/ft²
Electricity9,091,592 kWh
Gross floor area52,000 sq ft
Source recordnyc:21353656:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest1±0652.3 kBtu/ft²3,763 tCO₂e
20231±0630.5 kBtu/ft²3,507 tCO₂e
20221740.4 kBtu/ft²3,149 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.

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Location

Address
City Hall Park
State
New York
ZIP
10007
Coordinates
40.71254, -74.00643

Within ~1 km

Nearby benchmarked buildings

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

How does DCAS_1010_City Hall compare with other office buildings in New York City?

The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. DCAS_1010_City Hall's ENERGY STAR score of 1 compares with an average of 72 across the 2,519 that report a score; it scores higher than 0% of them and lower than 99%. Its site EUI of 652.3 kBtu/ft² is about 911% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 72.4 kgCO₂e/ft² is about 1148% above the group average of 5.8 kgCO₂e/ft².

At 52,000 sq ft, it is about 75% below the average floor area of 205,440 sq ft for those buildings. It was built in 1811, 129 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has DCAS_1010_City Hall's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for DCAS_1010_City Hall, covering report years 2022–2024. Its ENERGY STAR score was 1 in both 2022 and 2024. Site EUI moved from 740.4 kBtu/ft² (2022) to 652.3 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 3,149 tCO₂e to 3,763 tCO₂e over the same span (up 19%).

What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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. DCAS_1010_City Hall's 652.3 kBtu/ft² across 52,000 sq ft works out to about 33.9 billion Btu (9,941 MWh-equivalent) in 2024. Its source EUI of 1737.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 9,091,592 kWh of electricity for the year.

Which law requires DCAS_1010_City Hall to report its energy use?

DCAS_1010_City Hall 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:21353656:2024). 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 office buildings in New York City

Frequently asked questions

What is DCAS_1010_City Hall's energy grade?

DCAS_1010_City Hall scores 1 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 DCAS_1010_City Hall use?

Its 2024 site energy-use intensity was 652.3 kBtu/ft² (1737.3 kBtu/ft² source) across 52,000 sq ft, including 9,091,592 kWh of electricity.

What are DCAS_1010_City Hall's carbon emissions?

DCAS_1010_City Hall reported 3,763 tCO₂e of greenhouse-gas emissions (72.4 kgCO₂e/ft²) for 2024.

Where is DCAS_1010_City Hall?

DCAS_1010_City Hall is at City Hall Park, in New York City, New York 10007. Its coordinates are 40.71254, -74.00643 (latitude, longitude), as published in the Energy and Water Data Disclosure file.

How big is DCAS_1010_City Hall and when was it built?

DCAS_1010_City Hall has 52,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1811 as its year built. It is classed as office.

Is DCAS_1010_City Hall 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).

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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, “DCAS_1010_City Hall, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/dcas-1010-city-hall-7274548a (data as of October 2, 2026).