343 Commercial St

How does 343 Commercial 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. 343 Commercial St's ENERGY STAR score of 72 compares with an average of 71 across the 1,225 that report a score; it scores higher than 39% of them and lower than 60%. Its site EUI of 38.5 kBtu/ft² is about 43% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 124,212 sq ft, it is about twice 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 343 Commercial St's energy performance changed over time?

BuildingCensus holds 3 Boston disclosures for 343 Commercial St, covering report years 2022–2024. Its ENERGY STAR score was 72 in both 2022 and 2024. Site EUI moved from 39.9 kBtu/ft² (2022) to 38.5 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 362 tCO₂e to 268 tCO₂e over the same span (down 26%).

What does an ENERGY STAR score of 72 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 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 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. 343 Commercial St's 38.5 kBtu/ft² across 124,212 sq ft works out to about 4.8 billion Btu (1,402 MWh-equivalent) in 2024. The disclosure also reports 1,076,538 kWh of electricity and 11,054 therms of natural gas for the year.

Which law requires 343 Commercial St to report its energy use?

343 Commercial 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:106449:2024). 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.