At a glance
141-149 Dartmouth St is a 370,680-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 81 out of 100 (grade B), a site energy-use intensity of 58.6 kBtu/ft² and 1,238 tCO₂e of greenhouse-gas emissions. That score is higher than 60% of the 356 scored office buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 81 (band B) |
| Site EUI | 58.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 1,238 tCO₂e |
| GHG intensity | — |
| Electricity | 6,365,398 kWh |
| Gross floor area | 370,680 sq ft |
| Source record | boston:102932:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 81 | -3 | 58.6 kBtu/ft² | 1,238 tCO₂e |
| 2023 | 84 | +16 | 55.3 kBtu/ft² | 1,233 tCO₂e |
| 2022 | 68 | 70.1 kBtu/ft² | 2,055 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
FHF I 131 DARTMOUTH LLC
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 141-149 Dartmouth St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2116.
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 141-149 Dartmouth St compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. 141-149 Dartmouth St's ENERGY STAR score of 81 compares with an average of 71 across the 356 that report a score; it scores higher than 60% of them and lower than 36%. Its site EUI of 58.6 kBtu/ft² is roughly in line with the average of 61.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 370,680 sq ft, it is about twice 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 141-149 Dartmouth St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 141-149 Dartmouth St, covering report years 2022–2024. Its ENERGY STAR score went from 68 in 2022 to 81 in 2024 (+13 points); its best year on file was 2023, at 84. Site EUI moved from 70.1 kBtu/ft² (2022) to 58.6 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 2,055 tCO₂e to 1,238 tCO₂e over the same span (down 40%).
What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 falls in band B — above median (70–84). 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. 141-149 Dartmouth St's 58.6 kBtu/ft² across 370,680 sq ft works out to about 21.7 billion Btu (6,366 MWh-equivalent) in 2024. The disclosure also reports 6,365,398 kWh of electricity for the year.
Which law requires 141-149 Dartmouth St to report its energy use?
141-149 Dartmouth 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:102932:2024). 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
- 160 Federal St· 366,650 sq ft · score 75 (B)
- Office building #102535· 365,702 sq ft · score 71 (B)
- 265 Franklin St· 364,493 sq ft · score 78 (B)
- Office building #106077· 348,324 sq ft · score 84 (B)
- 466-472 Atlantic Ave· 343,688 sq ft · score 88 (A)
- 226-250 Causeway St· 338,607 sq ft · score 78 (B)
- 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 141-149 Dartmouth St's energy grade?
141-149 Dartmouth St scores 81 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 141-149 Dartmouth St use?
Its 2024 site energy-use intensity was 58.6 kBtu/ft² across 370,680 sq ft, including 6,365,398 kWh of electricity.
What are 141-149 Dartmouth St's carbon emissions?
141-149 Dartmouth St reported 1,238 tCO₂e of greenhouse-gas emissions for 2024.
Where is 141-149 Dartmouth St?
141-149 Dartmouth St is in Boston, Massachusetts 2116.
How big is 141-149 Dartmouth St and when was it built?
141-149 Dartmouth St has 370,680 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 141-149 Dartmouth 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.
Working with Boston building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “141-149 Dartmouth St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/141-149-dartmouth-st-0db45609 (data as of July 9, 2026).