At a glance
450 Walnut Avenue is a 8,000-square-foot office building in Boston, Massachusetts. In its 2022 Boston benchmarking disclosure it reported a site energy-use intensity of 167.9 kBtu/ft².
BERDO 2.0 · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 167.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 114,533 kWh |
| Natural gas | 9,526 therms |
| Gross floor area | 8,000 sq ft |
| Source record | boston:107189, 107190:2022 |
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
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 450 Walnut Avenue
- City
- Boston
- State
- Massachusetts
- ZIP
- 02130
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 450 Walnut Avenue compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. Its site EUI of 167.9 kBtu/ft² is about 172% above the average of 61.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 8,000 sq ft, it is about 96% 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.
What does a site EUI of 167.9 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. 450 Walnut Avenue's 167.9 kBtu/ft² across 8,000 sq ft works out to about 1.3 billion Btu (394 MWh-equivalent) in 2022. The disclosure also reports 114,533 kWh of electricity and 9,526 therms of natural gas for the year.
Which law requires 450 Walnut Avenue to report its energy use?
450 Walnut Avenue 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 2022 disclosure (source record boston:107189, 107190:2022). 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
- 315 Western Av· 7,316 sq ft · score 82 (B)
- 20 City Hall Av· 7,260 sq ft · score 30 (D)
- Management Building - Bldg #6· 7,000 sq ft · score 67 (C)
- 209 Sumner Street· 6,500 sq ft · score 41 (D)
- Office building #107202· 5,090 sq ft · EUI 69.8 kBtu/ft²
- 81 Orton-Marotta Way· 4,725 sq ft · score 56 (C)
- 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 450 Walnut Avenue's energy grade?
450 Walnut Avenue did not report an ENERGY STAR score in its 2022 disclosure, but its site energy-use intensity was 167.9 kBtu/ft².
How much energy does 450 Walnut Avenue use?
Its 2022 site energy-use intensity was 167.9 kBtu/ft² across 8,000 sq ft, including 114,533 kWh of electricity and 9,526 therms of natural gas.
What are 450 Walnut Avenue's carbon emissions?
No greenhouse-gas emissions figure was reported for 2022.
Where is 450 Walnut Avenue?
450 Walnut Avenue is in Boston, Massachusetts 02130.
How big is 450 Walnut Avenue and when was it built?
450 Walnut Avenue has 8,000 sq ft of gross floor area, as reported in its 2022 disclosure. It is classed as office.
Is 450 Walnut Avenue covered by BERDO 2.0?
Yes — it appears in the 2022 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, “450 Walnut Avenue, Boston, Massachusetts — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/450-walnut-avenue-97922693 (data as of July 9, 2026).