3 Monsignor Dennis F. O'Callaghan Way
Multifamily Housing in Boston, MA · 2127.
At a glance
3 Monsignor Dennis F. O'Callaghan Way is a 26,910-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 130.2 kBtu/ft² and 189 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 130.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 189 tCO₂e |
| GHG intensity | — |
| Electricity | 223,170 kWh |
| Natural gas | 27,413 therms |
| Gross floor area | 26,910 sq ft |
| Source record | boston:100921:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 130.2 kBtu/ft² | 189 tCO₂e | |
| 2023 | — | 97.3 kBtu/ft² | 228 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
BOSTON HOUSING AUTHORITY
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Location
- Address
- 3 Monsignor Dennis F. O'Callaghan Way
- City
- Boston
- State
- Massachusetts
- ZIP
- 2127.
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 3 Monsignor Dennis F. O'Callaghan Way 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 130.2 kBtu/ft² is about twice the average of 67.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 26,910 sq ft, it is about half of 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 3 Monsignor Dennis F. O'Callaghan Way's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 3 Monsignor Dennis F. O'Callaghan Way, covering report years 2022–2024. Site EUI moved from 97.3 kBtu/ft² (2023) to 130.2 kBtu/ft² (2024), an 34% increase. Reported emissions went from 228 tCO₂e to 189 tCO₂e over the same span (down 17%).
What does a site EUI of 130.2 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. 3 Monsignor Dennis F. O'Callaghan Way's 130.2 kBtu/ft² across 26,910 sq ft works out to about 3.5 billion Btu (1,027 MWh-equivalent) in 2024. The disclosure also reports 223,170 kWh of electricity and 27,413 therms of natural gas for the year.
Which law requires 3 Monsignor Dennis F. O'Callaghan Way to report its energy use?
3 Monsignor Dennis F. O'Callaghan Way 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:100921:2024). 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
- 319-329 Centre St· 26,856 sq ft · score 49 (D)
- 93-101 Northampton St· 26,768 sq ft · score 73 (B)
- 96 Mountfort St· 26,742 sq ft · score 79 (B)
- 17 Bickford St· 26,730 sq ft · EUI 86.3 kBtu/ft²
- 6 Barrows St· 26,670 sq ft · EUI 95.4 kBtu/ft²
- 380-390 Commercial St· 26,607 sq ft · score 86 (A)
- 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 3 Monsignor Dennis F. O'Callaghan Way's energy grade?
3 Monsignor Dennis F. O'Callaghan Way did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 130.2 kBtu/ft².
How much energy does 3 Monsignor Dennis F. O'Callaghan Way use?
Its 2024 site energy-use intensity was 130.2 kBtu/ft² across 26,910 sq ft, including 223,170 kWh of electricity and 27,413 therms of natural gas.
What are 3 Monsignor Dennis F. O'Callaghan Way's carbon emissions?
3 Monsignor Dennis F. O'Callaghan Way reported 189 tCO₂e of greenhouse-gas emissions for 2024.
Where is 3 Monsignor Dennis F. O'Callaghan Way?
3 Monsignor Dennis F. O'Callaghan Way is in Boston, Massachusetts 2127.
How big is 3 Monsignor Dennis F. O'Callaghan Way and when was it built?
3 Monsignor Dennis F. O'Callaghan Way has 26,910 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 3 Monsignor Dennis F. O'Callaghan Way 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, “3 Monsignor Dennis F. O'Callaghan Way, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/3-monsignor-dennis-f-o-callaghan-way-0bceed33 (data as of July 9, 2026).