140 Seaver St

How does 140 Seaver St compare with other multifamily housing buildings in Boston?

The latest disclosures cover 2,174 multifamily housing buildings in Boston, out of 6,305 buildings citywide. 140 Seaver St's ENERGY STAR score of 20 compares with an average of 71 across the 1,225 that report a score; it scores higher than 7% of them and lower than 93%. Its site EUI of 91.6 kBtu/ft² is about 35% above the average of 67.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.

At 30,559 sq ft, it is about half of the average floor area of 58,087 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

How has 140 Seaver St's energy performance changed over time?

BuildingCensus holds 3 Boston disclosures for 140 Seaver St, covering report years 2022–2024. Its ENERGY STAR score went from 53 in 2022 to 20 in 2024 (-33 points); its best year on file was 2022, at 53. Site EUI moved from 85.4 kBtu/ft² (2022) to 91.6 kBtu/ft² (2024), an 7% increase. Reported emissions went from 153 tCO₂e to 151 tCO₂e over the same span (down 1%).

What does an ENERGY STAR score of 20 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 20 means the building performs better than about 20% of its national peers. BuildingCensus bands the score into report-card grades; 20 falls in band D — lowest band (1–54). It sits 55 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. 140 Seaver St's 91.6 kBtu/ft² across 30,559 sq ft works out to about 2.8 billion Btu (820 MWh-equivalent) in 2024. The disclosure also reports 158,274 kWh of electricity and 22,606 therms of natural gas for the year.

Which law requires 140 Seaver St to report its energy use?

140 Seaver 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:104619:2024). 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.