At a glance
141-147 Portland St is a 22,260-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 27.2 kBtu/ft² and 33 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 27.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 33 tCO₂e |
| GHG intensity | — |
| Electricity | 86,382 kWh |
| Natural gas | 3,118 therms |
| Gross floor area | 22,260 sq ft |
| Source record | boston:105160:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 27.2 kBtu/ft² | 33 tCO₂e | |
| 2023 | — | 27.0 kBtu/ft² | 34 tCO₂e | |
| 2022 | — | 44.0 kBtu/ft² | 65 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
PORTLAND ST EQUITY PARTNERS MASS LLC
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Location
- Address
- 141-147 Portland St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2114.
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 141-147 Portland St compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. Its site EUI of 27.2 kBtu/ft² is about 56% below the average of 61.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 22,260 sq ft, it is about 88% 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 141-147 Portland St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 141-147 Portland St, covering report years 2022–2024. Site EUI moved from 44.0 kBtu/ft² (2022) to 27.2 kBtu/ft² (2024), a 38% decrease. Reported emissions went from 65 tCO₂e to 33 tCO₂e over the same span (down 48%).
What does a site EUI of 27.2 kBtu/ft² mean?
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. 141-147 Portland St's 27.2 kBtu/ft² across 22,260 sq ft works out to about 0.6 billion Btu (177 MWh-equivalent) in 2024. The disclosure also reports 86,382 kWh of electricity and 3,118 therms of natural gas for the year.
Which law requires 141-147 Portland St to report its energy use?
141-147 Portland 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:105160:2024). 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
- 199-215 Norfolk Ave· 22,108 sq ft · score 97 (A)
- 1230-1244 Massachusetts Ave· 22,021 sq ft · score 42 (D)
- 727-729 Atlantic Ave· 21,864 sq ft · score 96 (A)
- 60 Leo M Birmingham Pkwy· 21,860 sq ft · score 70 (B)
- Office building #101666· 21,840 sq ft · score 52 (D)
- 333 Tremont St· 21,702 sq ft · EUI 27.1 kBtu/ft²
- 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 141-147 Portland St's energy grade?
141-147 Portland St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 27.2 kBtu/ft².
How much energy does 141-147 Portland St use?
Its 2024 site energy-use intensity was 27.2 kBtu/ft² across 22,260 sq ft, including 86,382 kWh of electricity and 3,118 therms of natural gas.
What are 141-147 Portland St's carbon emissions?
141-147 Portland St reported 33 tCO₂e of greenhouse-gas emissions for 2024.
Where is 141-147 Portland St?
141-147 Portland St is in Boston, Massachusetts 2114.
How big is 141-147 Portland St and when was it built?
141-147 Portland St has 22,260 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 141-147 Portland St 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, “141-147 Portland St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/141-147-portland-st-52616666 (data as of July 9, 2026).