451 Norfolk St
Multifamily Housing in Boston, MA · 2126.
At a glance
451 Norfolk St is a 13,560-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 42.7 kBtu/ft² and 33 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 42.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 33 tCO₂e |
| GHG intensity | — |
| Electricity | 151,251 kWh |
| Natural gas | 628 therms |
| Gross floor area | 13,560 sq ft |
| Source record | boston:107327:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 42.7 kBtu/ft² | 33 tCO₂e | |
| 2023 | — | 45.6 kBtu/ft² | 37 tCO₂e | |
| 2022 | — | 38.9 kBtu/ft² | 41 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
451 NORFOLK STREET DEVELOPMENT LLC
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 451 Norfolk 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 451 Norfolk 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 42.7 kBtu/ft² is about 37% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 13,560 sq ft, it is about 77% 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 451 Norfolk St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 451 Norfolk St, covering report years 2022–2024. Site EUI moved from 38.9 kBtu/ft² (2022) to 42.7 kBtu/ft² (2024), an 10% increase. Reported emissions went from 41 tCO₂e to 33 tCO₂e over the same span (down 19%).
What does a site EUI of 42.7 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. 451 Norfolk St's 42.7 kBtu/ft² across 13,560 sq ft works out to about 0.6 billion Btu (170 MWh-equivalent) in 2024. The disclosure also reports 151,251 kWh of electricity and 628 therms of natural gas for the year.
Which law requires 451 Norfolk St to report its energy use?
451 Norfolk 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:107327:2024). 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
- 1467 Tremont St· 13,523 sq ft · EUI 63.3 kBtu/ft²
- 35 Bird Street· 13,510 sq ft · EUI 18.7 kBtu/ft²
- 75 Waldemar Ave· 13,506 sq ft · EUI 38.8 kBtu/ft²
- 88 Mount Vernon St· 13,436 sq ft · EUI 72.4 kBtu/ft²
- 105 Queensberry St· 13,432 sq ft · score 95 (A)
- 57-59 Charter St· 13,416 sq ft · EUI 54.1 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 451 Norfolk St's energy grade?
451 Norfolk St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 42.7 kBtu/ft².
How much energy does 451 Norfolk St use?
Its 2024 site energy-use intensity was 42.7 kBtu/ft² across 13,560 sq ft, including 151,251 kWh of electricity and 628 therms of natural gas.
What are 451 Norfolk St's carbon emissions?
451 Norfolk St reported 33 tCO₂e of greenhouse-gas emissions for 2024.
Where is 451 Norfolk St?
451 Norfolk St is in Boston, Massachusetts 2126.
How big is 451 Norfolk St and when was it built?
451 Norfolk St has 13,560 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 451 Norfolk 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.
Working with Boston building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “451 Norfolk St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/451-norfolk-st-70a616b2 (data as of July 9, 2026).