146A-148B N Beacon St
Multifamily Housing in Boston, MA · 2135.
At a glance
146A-148B N Beacon St is a 22,086-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 25.0 kBtu/ft² and 31 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 25.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 31 tCO₂e |
| GHG intensity | — |
| Electricity | 161,826 kWh |
| Gross floor area | 22,086 sq ft |
| Source record | boston:104691:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 25.0 kBtu/ft² | 31 tCO₂e | |
| 2023 | — | 28.1 kBtu/ft² | 37 tCO₂e | |
| 2022 | — | — | — |
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
NORTH BEACON ONE 40 LP MASS LP
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Location
- Address
- 146A-148B N Beacon St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2135.
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 146A-148B N Beacon St compare with other multifamily housing buildings in Boston?
The latest disclosures cover 2,174 multifamily housing buildings in Boston, out of 6,305 buildings citywide. Its site EUI of 25.0 kBtu/ft² is about 63% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 22,086 sq ft, it is about 62% below the average floor area of 58,087 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has 146A-148B N Beacon St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 146A-148B N Beacon St, covering report years 2022–2024. Site EUI moved from 28.1 kBtu/ft² (2023) to 25.0 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 37 tCO₂e to 31 tCO₂e over the same span (down 16%).
What does a site EUI of 25.0 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. 146A-148B N Beacon St's 25.0 kBtu/ft² across 22,086 sq ft works out to about 0.6 billion Btu (162 MWh-equivalent) in 2024. The disclosure also reports 161,826 kWh of electricity for the year.
Which law requires 146A-148B N Beacon St to report its energy use?
146A-148B N Beacon 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:104691:2024). 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 multifamily housing buildings in Boston
- 786-790 Blue Hill Ave· 22,057 sq ft · score 54 (D)
- 76 Strathmore Rd· 22,056 sq ft · score 8 (D)
- 42 W Newton St· 22,039 sq ft · score 85 (A)
- 48 Beacon St· 22,000 sq ft · EUI 141.1 kBtu/ft²
- 731-733 River St· 22,000 sq ft · score 73 (B)
- 128 Chestnut St· 21,960 sq ft · score 66 (C)
- Multifamily Housing buildings in Boston· 2,174 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 146A-148B N Beacon St's energy grade?
146A-148B N Beacon St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 25.0 kBtu/ft².
How much energy does 146A-148B N Beacon St use?
Its 2024 site energy-use intensity was 25.0 kBtu/ft² across 22,086 sq ft, including 161,826 kWh of electricity.
What are 146A-148B N Beacon St's carbon emissions?
146A-148B N Beacon St reported 31 tCO₂e of greenhouse-gas emissions for 2024.
Where is 146A-148B N Beacon St?
146A-148B N Beacon St is in Boston, Massachusetts 2135.
How big is 146A-148B N Beacon St and when was it built?
146A-148B N Beacon St has 22,086 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 146A-148B N Beacon 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, “146A-148B N Beacon St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/146a-148b-n-beacon-st-9a7d3f4f (data as of July 9, 2026).