580 Chelsea St

How does 580 Chelsea St compare with other office buildings in Boston?

The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. 580 Chelsea St's ENERGY STAR score of 95 compares with an average of 71 across the 356 that report a score; it scores higher than 91% of them and lower than 8%. Its site EUI of 47.2 kBtu/ft² is about 24% below the average of 61.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 85,774 sq ft, it is about 55% below the average floor area of 191,803 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has 580 Chelsea St's energy performance changed over time?

BuildingCensus holds 3 Boston disclosures for 580 Chelsea St, covering report years 2022–2024. Only one of those years carries energy figures.

What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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. 580 Chelsea St's 47.2 kBtu/ft² across 85,774 sq ft works out to about 4 billion Btu (1,187 MWh-equivalent) in 2024. The disclosure also reports 290,516 kWh of electricity and 32,043 therms of natural gas for the year.

Which law requires 580 Chelsea St to report its energy use?

580 Chelsea 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:106016:2024). 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.