BuildingCensus
D

Impacct Pres LLC - The Sixes Lmtd Partne (2142six)

Multifamily Housing in New York City, NY · 666 Willoughby Avenue · 11206

At a glance

Impacct Pres LLC - The Sixes Lmtd Partne (2142six) is a 35,200-square-foot multifamily housing building at 666 Willoughby Avenue in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 31 out of 100 (grade D), a site energy-use intensity of 132.4 kBtu/ft² and 294 tCO₂e of greenhouse-gas emissions. That score is higher than 18% of the 22,829 scored multifamily housing buildings in New York City.

ENERGY STAR score
31
band D · 2024
Site EUI
132.4
kBtu/ft²
GHG emissions
294
tCO₂e
GHG intensity
8.4
kgCO₂e/ft²
Floor area
35,200
sq ft
Year built
1931
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 score31 (band D)
Site EUI132.4 kBtu/ft²
Source EUI176.7 kBtu/ft²
GHG emissions294 tCO₂e
GHG intensity8.4 kgCO₂e/ft²
Electricity221,769 kWh
Natural gas39,050 therms
Gross floor area35,200 sq ft
Source recordnyc:6696203:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest31-69132.4 kBtu/ft²294 tCO₂e
2023100±026.3 kBtu/ft²86 tCO₂e
202210032.5 kBtu/ft²86 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.

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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
666 Willoughby Avenue
State
New York
ZIP
11206
Coordinates
40.69460, -73.94277

Within ~1 km

Nearby benchmarked buildings

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

How does Impacct Pres LLC - The Sixes Lmtd Partne (2142six) 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. Impacct Pres LLC - The Sixes Lmtd Partne (2142six)'s ENERGY STAR score of 31 compares with an average of 63 across the 22,829 that report a score; it scores higher than 18% of them and lower than 82%. Its site EUI of 132.4 kBtu/ft² is about 77% 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 8.4 kgCO₂e/ft² is about 61% above the group average of 5.2 kgCO₂e/ft².

At 35,200 sq ft, it is about 65% below the average floor area of 100,951 sq ft for those buildings. It was built in 1931, 21 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.

How has Impacct Pres LLC - The Sixes Lmtd Partne (2142six)'s energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for Impacct Pres LLC - The Sixes Lmtd Partne (2142six), covering report years 2022–2024. Its ENERGY STAR score went from 100 in 2022 to 31 in 2024 (-69 points); its best year on file was 2022, at 100. Site EUI moved from 32.5 kBtu/ft² (2022) to 132.4 kBtu/ft² (2024), an 307% increase. Reported emissions went from 86 tCO₂e to 294 tCO₂e over the same span (up 243%).

What does an ENERGY STAR score of 31 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: a score of 31 means the building performs better than about 31% of its national peers. BuildingCensus bands the score into report-card grades; 31 falls in band D — lowest band (1–54). It sits 44 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. Impacct Pres LLC - The Sixes Lmtd Partne (2142six)'s 132.4 kBtu/ft² across 35,200 sq ft works out to about 4.7 billion Btu (1,366 MWh-equivalent) in 2024. Its source EUI of 176.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 221,769 kWh of electricity and 39,050 therms of natural gas for the year.

Which law requires Impacct Pres LLC - The Sixes Lmtd Partne (2142six) to report its energy use?

Impacct Pres LLC - The Sixes Lmtd Partne (2142six) 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:6696203:2024). 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 Impacct Pres LLC - The Sixes Lmtd Partne (2142six)'s energy grade?

Impacct Pres LLC - The Sixes Lmtd Partne (2142six) scores 31 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 Impacct Pres LLC - The Sixes Lmtd Partne (2142six) use?

Its 2024 site energy-use intensity was 132.4 kBtu/ft² (176.7 kBtu/ft² source) across 35,200 sq ft, including 221,769 kWh of electricity and 39,050 therms of natural gas.

What are Impacct Pres LLC - The Sixes Lmtd Partne (2142six)'s carbon emissions?

Impacct Pres LLC - The Sixes Lmtd Partne (2142six) reported 294 tCO₂e of greenhouse-gas emissions (8.4 kgCO₂e/ft²) for 2024.

Where is Impacct Pres LLC - The Sixes Lmtd Partne (2142six)?

Impacct Pres LLC - The Sixes Lmtd Partne (2142six) is at 666 Willoughby Avenue, in New York City, New York 11206. Its coordinates are 40.69460, -73.94277 (latitude, longitude), as published in the Energy and Water Data Disclosure file.

How big is Impacct Pres LLC - The Sixes Lmtd Partne (2142six) and when was it built?

Impacct Pres LLC - The Sixes Lmtd Partne (2142six) has 35,200 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as multifamily housing.

Is Impacct Pres LLC - The Sixes Lmtd Partne (2142six) 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, “Impacct Pres LLC - The Sixes Lmtd Partne (2142six), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/impacct-pres-llc-the-sixes-lmtd-partne-2142six-947e5f07 (data as of October 2, 2026).