At a glance
148 State St is a 64,450-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 65 out of 100 (grade C), a site energy-use intensity of 73.1 kBtu/ft² and 259 tCO₂e of greenhouse-gas emissions. That score is higher than 30% of the 356 scored office buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 65 (band C) |
| Site EUI | 73.1 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 259 tCO₂e |
| GHG intensity | — |
| Electricity | 632,368 kWh |
| Natural gas | 25,524 therms |
| Gross floor area | 64,450 sq ft |
| Source record | boston:103807:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 65 | ±0 | 73.1 kBtu/ft² | 259 tCO₂e |
| 2023 | 65 | -5 | 71.5 kBtu/ft² | 260 tCO₂e |
| 2022 | 70 | 67.2 kBtu/ft² | 284 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
HS 148SST LLC
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Location
- Address
- 148 State St
- 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 148 State St compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. 148 State St's ENERGY STAR score of 65 compares with an average of 71 across the 356 that report a score; it scores higher than 30% of them and lower than 68%. Its site EUI of 73.1 kBtu/ft² is about 18% above the average of 61.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 64,450 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 148 State St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 148 State St, covering report years 2022–2024. Its ENERGY STAR score went from 70 in 2022 to 65 in 2024 (-5 points); its best year on file was 2022, at 70. Site EUI moved from 67.2 kBtu/ft² (2022) to 73.1 kBtu/ft² (2024), an 9% increase. Reported emissions went from 284 tCO₂e to 259 tCO₂e over the same span (down 9%).
What does an ENERGY STAR score of 65 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 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 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. 148 State St's 73.1 kBtu/ft² across 64,450 sq ft works out to about 4.7 billion Btu (1,381 MWh-equivalent) in 2024. The disclosure also reports 632,368 kWh of electricity and 25,524 therms of natural gas for the year.
Which law requires 148 State St to report its energy use?
148 State 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:103807:2024). 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
- 311-319 Summer St· 63,937 sq ft · EUI 29.7 kBtu/ft²
- 178-179 Tremont St· 63,096 sq ft · score 73 (B)
- 647B Summer St· 63,000 sq ft
- 50 Franklin St· 62,285 sq ft · score 90 (A)
- 75-79 Summer St· 62,246 sq ft · score 34 (D)
- 1-3 Province St· 60,446 sq ft · score 80 (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 148 State St's energy grade?
148 State St scores 65 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 148 State St use?
Its 2024 site energy-use intensity was 73.1 kBtu/ft² across 64,450 sq ft, including 632,368 kWh of electricity and 25,524 therms of natural gas.
What are 148 State St's carbon emissions?
148 State St reported 259 tCO₂e of greenhouse-gas emissions for 2024.
Where is 148 State St?
148 State St is in Boston, Massachusetts 2109.
How big is 148 State St and when was it built?
148 State St has 64,450 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 148 State 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, “148 State St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/148-state-st-f881d3d5 (data as of July 9, 2026).