BuildingCensus
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Isaac Dahan Real Estate 35 Broadway

Multifamily Housing in New York City, NY · 35 Broadway · 11249

At a glance

Isaac Dahan Real Estate 35 Broadway is a 34,380-square-foot multifamily housing building in New York City, New York, built in 1900. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 89.8 kBtu/ft² and 216 tCO₂e of greenhouse-gas emissions.

ENERGY STAR score
—
not reported · 2024
Site EUI
89.8
kBtu/ft²
GHG emissions
216
tCO₂e
GHG intensity
6.3
kgCO₂e/ft²
Floor area
34,380
sq ft
Year built
1900
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 score—
Site EUI89.8 kBtu/ft²
Source EUI136.6 kBtu/ft²
GHG emissions216 tCO₂e
GHG intensity6.3 kgCO₂e/ft²
Electricity244,004 kWh
Natural gas22,537 therms
Water use1,636 kgal
Gross floor area34,380 sq ft
Source recordnyc:16851965:2024

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.

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Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
35 Broadway
State
New York
ZIP
11249
Coordinates
40.71070, -73.96740

Within ~1 km

Nearby benchmarked buildings

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

How does Isaac Dahan Real Estate 35 Broadway compare with other multifamily housing buildings in New York City?

The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 89.8 kBtu/ft² is about 20% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.3 kgCO₂e/ft² is about 21% above the group average of 5.2 kgCO₂e/ft².

At 34,380 sq ft, it is about 66% below the average floor area of 100,951 sq ft for those buildings. It was built in 1900, 52 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

What does a site EUI of 89.8 kBtu/ft² mean?

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. Isaac Dahan Real Estate 35 Broadway's 89.8 kBtu/ft² across 34,380 sq ft works out to about 3.1 billion Btu (905 MWh-equivalent) in 2024. Its source EUI of 136.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 244,004 kWh of electricity, 22,537 therms of natural gas and 1,636 thousand gallons of water for the year.

Which law requires Isaac Dahan Real Estate 35 Broadway to report its energy use?

Isaac Dahan Real Estate 35 Broadway 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:16851965:2024). 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 multifamily housing buildings in New York City

Frequently asked questions

What is Isaac Dahan Real Estate 35 Broadway's energy grade?

Isaac Dahan Real Estate 35 Broadway did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 89.8 kBtu/ft².

How much energy does Isaac Dahan Real Estate 35 Broadway use?

Its 2024 site energy-use intensity was 89.8 kBtu/ft² (136.6 kBtu/ft² source) across 34,380 sq ft, including 244,004 kWh of electricity and 22,537 therms of natural gas.

What are Isaac Dahan Real Estate 35 Broadway's carbon emissions?

Isaac Dahan Real Estate 35 Broadway reported 216 tCO₂e of greenhouse-gas emissions (6.3 kgCO₂e/ft²) for 2024.

Where is Isaac Dahan Real Estate 35 Broadway?

Isaac Dahan Real Estate 35 Broadway is in New York City, New York 11249. Its coordinates are 40.71070, -73.96740 (latitude, longitude), as published in the Energy and Water Data Disclosure file.

How big is Isaac Dahan Real Estate 35 Broadway and when was it built?

Isaac Dahan Real Estate 35 Broadway has 34,380 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1900 as its year built. It is classed as multifamily housing.

Is Isaac Dahan Real Estate 35 Broadway 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, “Isaac Dahan Real Estate 35 Broadway, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/isaac-dahan-real-estate-35-broadway-742720d2 (data as of October 2, 2026).