43-43A River St
Multifamily Housing in Boston, MA · 2126.
At a glance
43-43A River St is a 9,672-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 52.2 kBtu/ft² and 28 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 52.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 28 tCO₂e |
| GHG intensity | — |
| Electricity | 93,008 kWh |
| Natural gas | 1,879 therms |
| Gross floor area | 9,672 sq ft |
| Source record | boston:107346:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 52.2 kBtu/ft² | 28 tCO₂e | |
| 2023 | — | — | — | |
| 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
AENEAS REO LLC A MASS LLC
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Location
- Address
- 43-43A River St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2126.
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 43-43A River 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 52.2 kBtu/ft² is about 23% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 9,672 sq ft, it is about 83% 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 43-43A River St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 43-43A River St, covering report years 2022–2024. Only one of those years carries energy figures.
What does a site EUI of 52.2 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. 43-43A River St's 52.2 kBtu/ft² across 9,672 sq ft works out to about 0.5 billion Btu (148 MWh-equivalent) in 2024. The disclosure also reports 93,008 kWh of electricity and 1,879 therms of natural gas for the year.
Which law requires 43-43A River St to report its energy use?
43-43A River 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:107346:2024). 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
- Multifamily Housing building #102503· 9,667 sq ft · EUI 68.2 kBtu/ft²
- 222-226 Quincy St· 9,666 sq ft · EUI 35.1 kBtu/ft²
- 6 Shipway Pl· 9,600 sq ft · EUI 21.7 kBtu/ft²
- 12 Shipway Pl· 9,600 sq ft · EUI 21.7 kBtu/ft²
- 43-51 General Lawrence J Logan Way· 9,597 sq ft · EUI 70.0 kBtu/ft²
- 834-836 Beacon Street· 9,560 sq ft · EUI 65.1 kBtu/ft²
- 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 43-43A River St's energy grade?
43-43A River St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 52.2 kBtu/ft².
How much energy does 43-43A River St use?
Its 2024 site energy-use intensity was 52.2 kBtu/ft² across 9,672 sq ft, including 93,008 kWh of electricity and 1,879 therms of natural gas.
What are 43-43A River St's carbon emissions?
43-43A River St reported 28 tCO₂e of greenhouse-gas emissions for 2024.
Where is 43-43A River St?
43-43A River St is in Boston, Massachusetts 2126.
How big is 43-43A River St and when was it built?
43-43A River St has 9,672 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 43-43A River 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, “43-43A River St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/43-43a-river-st-8a33b64e (data as of July 9, 2026).