666 Third Avenue (Chrysler East)
Office in New York City, NY · 666 Third Avenue · 10017
At a glance
666 Third Avenue (Chrysler East) is a 784,116-square-foot office building in New York City, New York, built in 1951. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 56.0 kBtu/ft² and 4,209 tCO₂e of greenhouse-gas emissions. That score is higher than 50% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 79 (band B) |
| Site EUI | 56.0 kBtu/ft² |
| Source EUI | 120.7 kBtu/ft² |
| GHG emissions | 4,209 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 7,728,435 kWh |
| Natural gas | 3,666 therms |
| Water use | 16,870 kgal |
| Gross floor area | 784,116 sq ft |
| Source record | nyc:1407339:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | +3 | 56.0 kBtu/ft² | 4,209 tCO₂e |
| 2023 | 76 | +4 | 58.6 kBtu/ft² | 4,088 tCO₂e |
| 2022 | 72 | 60.9 kBtu/ft² | 3,614 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.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 666 Third Avenue
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75105, -73.97425
Within ~1 km
Nearby benchmarked buildings
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- 1211 Avenue of the Americasscore 56
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- 1211 Avenue of the Americasscore —
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- 277 Park Avenuescore 64
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- One Vanderbilt Avenuescore 43
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See also: most efficient in New York City · biggest emitters
How does 666 Third Avenue (Chrysler East) 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. 666 Third Avenue (Chrysler East)'s ENERGY STAR score of 79 compares with an average of 72 across the 2,519 that report a score; it scores higher than 50% of them and lower than 48%. Its site EUI of 56.0 kBtu/ft² is about 13% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².
At 784,116 sq ft, it is about 282% above the average floor area of 205,440 sq ft for those buildings. It was built in 1951, 11 years later 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 666 Third Avenue (Chrysler East)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 666 Third Avenue (Chrysler East), covering report years 2022–2024. Its ENERGY STAR score went from 72 in 2022 to 79 in 2024 (+7 points). Site EUI moved from 60.9 kBtu/ft² (2022) to 56.0 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 3,614 tCO₂e to 4,209 tCO₂e over the same span (up 16%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 666 Third Avenue (Chrysler East)'s 56.0 kBtu/ft² across 784,116 sq ft works out to about 43.9 billion Btu (12,869 MWh-equivalent) in 2024. Its source EUI of 120.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 7,728,435 kWh of electricity, 3,666 therms of natural gas and 16,870 thousand gallons of water for the year.
Which law requires 666 Third Avenue (Chrysler East) to report its energy use?
666 Third Avenue (Chrysler East) 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:1407339:2024). 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.
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- Office buildings in New York City· 3,384 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 666 Third Avenue (Chrysler East)'s energy grade?
666 Third Avenue (Chrysler East) scores 79 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 666 Third Avenue (Chrysler East) use?
Its 2024 site energy-use intensity was 56.0 kBtu/ft² (120.7 kBtu/ft² source) across 784,116 sq ft, including 7,728,435 kWh of electricity and 3,666 therms of natural gas.
What are 666 Third Avenue (Chrysler East)'s carbon emissions?
666 Third Avenue (Chrysler East) reported 4,209 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2024.
Where is 666 Third Avenue (Chrysler East)?
666 Third Avenue (Chrysler East) is in New York City, New York 10017. Its coordinates are 40.75105, -73.97425 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 666 Third Avenue (Chrysler East) and when was it built?
666 Third Avenue (Chrysler East) has 784,116 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1951 as its year built. It is classed as office.
Is 666 Third Avenue (Chrysler East) 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, “666 Third Avenue (Chrysler East), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/666-third-avenue-chrysler-east-dac73406 (data as of October 2, 2026).