218 Marion St

How does 218 Marion 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. 218 Marion St's ENERGY STAR score of 89 compares with an average of 59 across the 163 that report a score; it scores higher than 90% of them and lower than 10%. Its site EUI of 43.7 kBtu/ft² is about 32% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 35,000 sq ft, it is about 58% below 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 218 Marion St's energy performance changed over time?

BuildingCensus holds 3 Boston disclosures for 218 Marion St, covering report years 2022–2024. Its ENERGY STAR score went from 58 in 2022 to 89 in 2024 (+31 points). Site EUI moved from 72.7 kBtu/ft² (2022) to 43.7 kBtu/ft² (2024), a 40% decrease. Reported emissions went from 146 tCO₂e to 83 tCO₂e over the same span (down 44%).

What does an ENERGY STAR score of 89 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 89 means the building performs better than about 89% of its national peers. BuildingCensus bands the score into report-card grades; 89 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 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. 218 Marion St's 43.7 kBtu/ft² across 35,000 sq ft works out to about 1.5 billion Btu (448 MWh-equivalent) in 2024. The disclosure also reports 89,204 kWh of electricity and 12,267 therms of natural gas for the year.

Which law requires 218 Marion St to report its energy use?

218 Marion 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:101831:2024). 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.