Rocklyn: 309 Central Ave

How does Rocklyn: 309 Central Ave compare with other worship facility buildings in New York City?

The latest disclosures cover 370 worship facility buildings in New York City, out of 48,310 buildings citywide. Rocklyn: 309 Central Ave's ENERGY STAR score of 98 compares with an average of 43 across the 224 that report a score; it scores higher than 96% of them and lower than 4%. Its site EUI of 24.3 kBtu/ft² is about 61% below the average of 62.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.9 kgCO₂e/ft² is about 59% below the group average of 4.6 kgCO₂e/ft².

At 40,040 sq ft, it is about 11% below the average floor area of 44,868 sq ft for those buildings. It was built in 1909, 28 years earlier than the group's average year built (1937). Across all 24 jurisdictions BuildingCensus covers, the 1,035 worship facility buildings average an ENERGY STAR score of 50 and a site EUI of 47.8 kBtu/ft².

How has Rocklyn: 309 Central Ave's energy performance changed over time?

BuildingCensus holds 2 New York City disclosures for Rocklyn: 309 Central Ave, covering report years 2022–2023. Its ENERGY STAR score was 98 in both 2022 and 2023. Site EUI moved from 26.5 kBtu/ft² (2022) to 24.3 kBtu/ft² (2023), a 8% decrease. Reported emissions went from 80 tCO₂e to 76 tCO₂e over the same span (down 5%).

What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 falls in band A — high performer (85–100). 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. Rocklyn: 309 Central Ave's 24.3 kBtu/ft² across 40,040 sq ft works out to about 1 billion Btu (285 MWh-equivalent) in 2023. Its source EUI of 29.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 29,204 kWh of electricity and 54 thousand gallons of water for the year.

Which law requires Rocklyn: 309 Central Ave to report its energy use?

Rocklyn: 309 Central Ave 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:6629473:2023). 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.