419 Walnut Ave
Multifamily Housing in Boston, MA · 2119.
At a glance
419 Walnut Ave is a 22,217-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported 85 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | 85 tCO₂e |
| GHG intensity | — |
| Electricity | 139,417 kWh |
| Natural gas | 10,982 therms |
| Gross floor area | 22,217 sq ft |
| Source record | boston:106615:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | — | 85 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | 26 | 65.3 kBtu/ft² | 131 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
WALNUT HOUSE LLC
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Location
- Address
- 419 Walnut Ave
- City
- Boston
- State
- Massachusetts
- ZIP
- 2119.
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 419 Walnut Ave 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.
At 22,217 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 419 Walnut Ave's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 419 Walnut Ave, covering report years 2022–2024. Reported emissions went from 131 tCO₂e to 85 tCO₂e over the same span (down 35%). Only one of those years carries energy figures.
Which law requires 419 Walnut Ave to report its energy use?
419 Walnut Ave 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:106615:2024). 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
- 133 Marlborough St· 22,214 sq ft · score 74 (B)
- 35 Shipway Pl· 22,192 sq ft · EUI 21.7 kBtu/ft²
- 1000 Harvard St· 22,141 sq ft · score 89 (A)
- 2045 Commonwealth Ave· 22,100 sq ft · score 24 (D)
- 144A-144B N Beacon St· 22,086 sq ft · EUI 26.2 kBtu/ft²
- 146A-148B N Beacon St· 22,086 sq ft · EUI 25.0 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 419 Walnut Ave's energy grade?
419 Walnut Ave did not report an ENERGY STAR score in its 2024 disclosure.
How much energy does 419 Walnut Ave use?
No energy-use intensity was reported for 2024.
What are 419 Walnut Ave's carbon emissions?
419 Walnut Ave reported 85 tCO₂e of greenhouse-gas emissions for 2024.
Where is 419 Walnut Ave?
419 Walnut Ave is in Boston, Massachusetts 2119.
How big is 419 Walnut Ave and when was it built?
419 Walnut Ave has 22,217 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 419 Walnut Ave 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, “419 Walnut Ave, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/419-walnut-ave-cbdbd137 (data as of July 9, 2026).