315 W 35th St

How does 315 W 35th St 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. 315 W 35th St's ENERGY STAR score of 82 compares with an average of 72 across the 2,519 that report a score; it scores higher than 56% of them and lower than 42%. Its site EUI of 29.5 kBtu/ft² is about half of 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 3.2 kgCO₂e/ft² is about 45% below the group average of 5.8 kgCO₂e/ft².

At 62,632 sq ft, it is about 70% below the average floor area of 205,440 sq ft for those buildings. It was built in 1927, 13 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 315 W 35th St's energy performance changed over time?

BuildingCensus holds 2 New York City disclosures for 315 W 35th St, covering report years 2022–2023. Site EUI moved from 31.1 kBtu/ft² (2022) to 29.5 kBtu/ft² (2023), a 5% decrease. Reported emissions went from 157 tCO₂e to 197 tCO₂e over the same span (up 25%).

What does an ENERGY STAR score of 82 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 82 means the building performs better than about 82% of its national peers. BuildingCensus bands the score into report-card grades; 82 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. 315 W 35th St's 29.5 kBtu/ft² across 62,632 sq ft works out to about 1.8 billion Btu (541 MWh-equivalent) in 2023. Its source EUI of 80.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 523,110 kWh of electricity and 631 therms of natural gas for the year.

Which law requires 315 W 35th St to report its energy use?

315 W 35th St 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 2023 disclosure (source record nyc:13715796:2023). 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.