At a glance
2 Liberty Sq is a 65,343-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 51 out of 100 (grade D), a site energy-use intensity of 52.5 kBtu/ft² and 196 tCO₂e of greenhouse-gas emissions. That score is higher than 17% of the 356 scored office buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 51 (band D) |
| Site EUI | 52.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 196 tCO₂e |
| GHG intensity | — |
| Electricity | 1,005,234 kWh |
| Gross floor area | 65,343 sq ft |
| Source record | boston:106760:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 51 | -12 | 52.5 kBtu/ft² | 196 tCO₂e |
| 2023 | 63 | +9 | 44.5 kBtu/ft² | 175 tCO₂e |
| 2022 | 54 | 51.2 kBtu/ft² | 265 tCO₂e |
Compliance context
BERDO 2.0
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.
Ownership
WINHALL LIBERTY LLC
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Location
- Address
- 2 Liberty Sq
- City
- Boston
- State
- Massachusetts
- ZIP
- 2109.
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Boston · biggest emitters
How does 2 Liberty Sq compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. 2 Liberty Sq's ENERGY STAR score of 51 compares with an average of 71 across the 356 that report a score; it scores higher than 17% of them and lower than 82%. Its site EUI of 52.5 kBtu/ft² is about 15% below the average of 61.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 65,343 sq ft, it is about 66% 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 2 Liberty Sq's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 2 Liberty Sq, covering report years 2022–2024. Its ENERGY STAR score went from 54 in 2022 to 51 in 2024 (-3 points); its best year on file was 2023, at 63. Site EUI moved from 51.2 kBtu/ft² (2022) to 52.5 kBtu/ft² (2024), an 3% increase. Reported emissions went from 265 tCO₂e to 196 tCO₂e over the same span (down 26%).
What does an ENERGY STAR score of 51 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 51 means the building performs better than about 51% of its national peers. BuildingCensus bands the score into report-card grades; 51 falls in band D — lowest band (1–54). It sits 24 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. 2 Liberty Sq's 52.5 kBtu/ft² across 65,343 sq ft works out to about 3.4 billion Btu (1,005 MWh-equivalent) in 2024. The disclosure also reports 1,005,234 kWh of electricity for the year.
Which law requires 2 Liberty Sq to report its energy use?
2 Liberty Sq 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:106760:2024). 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.
More office buildings in Boston
- 11 Avenue De Lafayette· 65,180 sq ft · score 96 (A)
- 141 Tremont St· 64,884 sq ft · score 40 (D)
- 264-270 Bay State Road· 64,645 sq ft · score 100 (A)
- 259-267 Summer St· 64,564 sq ft
- 287-293 Columbus Ave· 64,540 sq ft · score 81 (B)
- 148 State St· 64,450 sq ft · score 65 (C)
- Office buildings in Boston· 467 benchmarked
- All Boston benchmarked buildings· BERDO 2.0
- Most efficient large buildings in Boston
- Least efficient large buildings in Boston
- Biggest emitters in Boston
Frequently asked questions
What is 2 Liberty Sq's energy grade?
2 Liberty Sq scores 51 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2 Liberty Sq use?
Its 2024 site energy-use intensity was 52.5 kBtu/ft² across 65,343 sq ft, including 1,005,234 kWh of electricity.
What are 2 Liberty Sq's carbon emissions?
2 Liberty Sq reported 196 tCO₂e of greenhouse-gas emissions for 2024.
Where is 2 Liberty Sq?
2 Liberty Sq is in Boston, Massachusetts 2109.
How big is 2 Liberty Sq and when was it built?
2 Liberty Sq has 65,343 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 2 Liberty Sq covered by BERDO 2.0?
Yes — it appears in the 2024 Building Emissions Reduction and Disclosure Ordinance disclosure, which lists the buildings reporting under BERDO 2.0.
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About this data
Source: Building Emissions Reduction and Disclosure Ordinance (BERDO 2.0), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “2 Liberty Sq, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/2-liberty-sq-9863daa2 (data as of July 9, 2026).