47 Hemenway St
Multifamily Housing in Boston, MA · 2115.
At a glance
47 Hemenway St is a 8,000-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 29.8 kBtu/ft² and 14 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 29.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 14 tCO₂e |
| GHG intensity | — |
| Electricity | 69,954 kWh |
| Gross floor area | 8,000 sq ft |
| Source record | boston:107567:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 29.8 kBtu/ft² | 14 tCO₂e | |
| 2023 | — | 29.6 kBtu/ft² | 14 tCO₂e | |
| 2022 | — | 48.3 kBtu/ft² | 20 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
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 47 Hemenway St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2115.
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 47 Hemenway 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 29.8 kBtu/ft² is about 56% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 8,000 sq ft, it is about 86% 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 47 Hemenway St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 47 Hemenway St, covering report years 2022–2024. Site EUI moved from 48.3 kBtu/ft² (2022) to 29.8 kBtu/ft² (2024), a 38% decrease. Reported emissions went from 20 tCO₂e to 14 tCO₂e over the same span (down 31%).
What does a site EUI of 29.8 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. 47 Hemenway St's 29.8 kBtu/ft² across 8,000 sq ft works out to about 0.2 billion Btu (70 MWh-equivalent) in 2024. The disclosure also reports 69,954 kWh of electricity for the year.
Which law requires 47 Hemenway St to report its energy use?
47 Hemenway 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:107567:2024). 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
- 120-120A Lanark Rd· 7,784 sq ft · EUI 27.5 kBtu/ft²
- 54 Bower St· 7,690 sq ft · EUI 150.3 kBtu/ft²
- 234-248 Monsignor Dennis F. O'Callaghan Way· 7,606 sq ft · EUI 148.5 kBtu/ft²
- 1-17 Hommagen Ct· 7,600 sq ft · EUI 71.9 kBtu/ft²
- 1A Buswell Street· 7,547 sq ft · EUI 65.5 kBtu/ft²
- 8-10 Estey St· 7,413 sq ft · EUI 48.0 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 47 Hemenway St's energy grade?
47 Hemenway St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 29.8 kBtu/ft².
How much energy does 47 Hemenway St use?
Its 2024 site energy-use intensity was 29.8 kBtu/ft² across 8,000 sq ft, including 69,954 kWh of electricity.
What are 47 Hemenway St's carbon emissions?
47 Hemenway St reported 14 tCO₂e of greenhouse-gas emissions for 2024.
Where is 47 Hemenway St?
47 Hemenway St is in Boston, Massachusetts 2115.
How big is 47 Hemenway St and when was it built?
47 Hemenway St has 8,000 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 47 Hemenway 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, “47 Hemenway St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/47-hemenway-st-5a41f288 (data as of July 9, 2026).