At a glance
141 Tremont St is a 64,884-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 40 out of 100 (grade D), a site energy-use intensity of 60.4 kBtu/ft² and 224 tCO₂e of greenhouse-gas emissions. That score is higher than 10% of the 356 scored office buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 40 (band D) |
| Site EUI | 60.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 224 tCO₂e |
| GHG intensity | — |
| Electricity | 1,146,208 kWh |
| Natural gas | 108 therms |
| Gross floor area | 64,884 sq ft |
| Source record | boston:104783:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 40 | +2 | 60.4 kBtu/ft² | 224 tCO₂e |
| 2023 | 38 | +8 | 61.9 kBtu/ft² | 241 tCO₂e |
| 2022 | 30 | 69.9 kBtu/ft² | 359 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
NS 141 TREMONT LLC
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Location
- Address
- 141 Tremont St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2111.
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 Tremont St compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. 141 Tremont St's ENERGY STAR score of 40 compares with an average of 71 across the 356 that report a score; it scores higher than 10% of them and lower than 89%. Its site EUI of 60.4 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 64,884 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 141 Tremont St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 141 Tremont St, covering report years 2022–2024. Its ENERGY STAR score went from 30 in 2022 to 40 in 2024 (+10 points). Site EUI moved from 69.9 kBtu/ft² (2022) to 60.4 kBtu/ft² (2024), a 14% decrease. Reported emissions went from 359 tCO₂e to 224 tCO₂e over the same span (down 38%).
What does an ENERGY STAR score of 40 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 40 means the building performs better than about 40% of its national peers. BuildingCensus bands the score into report-card grades; 40 falls in band D — lowest band (1–54). It sits 35 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. 141 Tremont St's 60.4 kBtu/ft² across 64,884 sq ft works out to about 3.9 billion Btu (1,149 MWh-equivalent) in 2024. The disclosure also reports 1,146,208 kWh of electricity and 108 therms of natural gas for the year.
Which law requires 141 Tremont St to report its energy use?
141 Tremont 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:104783:2024). 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
- 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)
- 311-319 Summer St· 63,937 sq ft · EUI 29.7 kBtu/ft²
- 178-179 Tremont St· 63,096 sq ft · score 73 (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 Tremont St's energy grade?
141 Tremont St scores 40 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 141 Tremont St use?
Its 2024 site energy-use intensity was 60.4 kBtu/ft² across 64,884 sq ft, including 1,146,208 kWh of electricity and 108 therms of natural gas.
What are 141 Tremont St's carbon emissions?
141 Tremont St reported 224 tCO₂e of greenhouse-gas emissions for 2024.
Where is 141 Tremont St?
141 Tremont St is in Boston, Massachusetts 2111.
How big is 141 Tremont St and when was it built?
141 Tremont St has 64,884 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 141 Tremont 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 Tremont St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/141-tremont-st-1da9119b (data as of July 9, 2026).