47 Westville St

How does 47 Westville St compare with other K-12 school buildings in Boston?

The latest disclosures cover 175 K-12 school buildings in Boston, out of 6,305 buildings citywide. 47 Westville St's ENERGY STAR score of 49 compares with an average of 59 across the 163 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 79.1 kBtu/ft² is about 23% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.

At 141,091 sq ft, it is about 70% above the average floor area of 83,066 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².

How has 47 Westville St's energy performance changed over time?

BuildingCensus holds 3 Boston disclosures for 47 Westville St, covering report years 2022–2024. Its ENERGY STAR score went from 52 in 2022 to 49 in 2024 (-3 points); its best year on file was 2022, at 52. Site EUI moved from 92.6 kBtu/ft² (2022) to 79.1 kBtu/ft² (2024), a 15% decrease. Reported emissions went from 739 tCO₂e to 604 tCO₂e over the same span (down 18%).

What does an ENERGY STAR score of 49 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 49 means the building performs better than about 49% of its national peers. BuildingCensus bands the score into report-card grades; 49 falls in band D — lowest band (1–54). It sits 26 points below 75, the threshold for ENERGY STAR certification. In Boston, 52% 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. 47 Westville St's 79.1 kBtu/ft² across 141,091 sq ft works out to about 11.2 billion Btu (3,271 MWh-equivalent) in 2024. The disclosure also reports 816,684 kWh of electricity and 83,729 therms of natural gas for the year.

Which law requires 47 Westville St to report its energy use?

47 Westville St reports under BERDO 2.0, the legal basis of Boston's Building Emissions Reduction and Disclosure Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record boston:102068:2024). BERDO 2.0 sets emissions standards for buildings of 20,000+ sq ft or 15+ units, starting in 2025 or 2030 depending on building size, with an alternative-compliance payment of $234 per metric ton of CO₂e over the limit.