733, 733 Third Avenue

How does 733, 733 Third Avenue 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. 733, 733 Third Avenue's ENERGY STAR score of 63 compares with an average of 72 across the 2,519 that report a score; it scores higher than 27% of them and lower than 73%. Its site EUI of 82.4 kBtu/ft² is about 28% 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 7.4 kgCO₂e/ft² is about 28% above the group average of 5.8 kgCO₂e/ft².

At 389,286 sq ft, it is about 89% above the average floor area of 205,440 sq ft for those buildings. It was built in 1961, 21 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 733, 733 Third Avenue's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 733, 733 Third Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 67 in 2022 to 63 in 2024 (-4 points); its best year on file was 2022, at 67. Site EUI moved from 82.0 kBtu/ft² (2022) to 82.4 kBtu/ft² (2024), an 0% increase. Reported emissions went from 2,386 tCO₂e to 2,883 tCO₂e over the same span (up 21%).

What does an ENERGY STAR score of 63 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 63 means the building performs better than about 63% of its national peers. BuildingCensus bands the score into report-card grades; 63 falls in band C — below median (55–69). It sits 12 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. 733, 733 Third Avenue's 82.4 kBtu/ft² across 389,286 sq ft works out to about 32.1 billion Btu (9,401 MWh-equivalent) in 2024. Its source EUI of 163.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,680,610 kWh of electricity and 17,731 therms of natural gas for the year.

Which law requires 733, 733 Third Avenue to report its energy use?

733, 733 Third Avenue 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:8841:2024). 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.