2 Ayr Rd

How does 2 Ayr Rd 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. 2 Ayr Rd's ENERGY STAR score of 100 compares with an average of 71 across the 1,225 that report a score; it scores higher than 93% of them. Its site EUI of 7.6 kBtu/ft² is about 89% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 20,835 sq ft, it is about 64% below 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 2 Ayr Rd's energy performance changed over time?

BuildingCensus holds 3 Boston disclosures for 2 Ayr Rd, covering report years 2022–2024. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 8.7 kBtu/ft² (2022) to 7.6 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 14 tCO₂e to 9 tCO₂e over the same span (down 35%).

What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. 2 Ayr Rd's 7.6 kBtu/ft² across 20,835 sq ft works out to about 0.2 billion Btu (46 MWh-equivalent) in 2024. The disclosure also reports 40,654 kWh of electricity and 191 therms of natural gas for the year.

Which law requires 2 Ayr Rd to report its energy use?

2 Ayr Rd 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:106350:2024). 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.