111-121 Green St
Multifamily Housing in Boston, MA · 2130.
At a glance
111-121 Green St is a 14,316-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 42.0 kBtu/ft² and 34 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 42.0 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 34 tCO₂e |
| GHG intensity | — |
| Electricity | 52,677 kWh |
| Natural gas | 4,440 therms |
| Gross floor area | 14,316 sq ft |
| Source record | boston:102172:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 42.0 kBtu/ft² | 34 tCO₂e | |
| 2023 | — | — | — | |
| 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
CITYGREEN CONDO TR
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Location
- Address
- 111-121 Green St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2130.
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 111-121 Green 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 42.0 kBtu/ft² is about 38% below the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 14,316 sq ft, it is about 75% 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 111-121 Green St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 111-121 Green St, covering report years 2022–2024. Only one of those years carries energy figures.
What does a site EUI of 42.0 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. 111-121 Green St's 42.0 kBtu/ft² across 14,316 sq ft works out to about 0.6 billion Btu (176 MWh-equivalent) in 2024. The disclosure also reports 52,677 kWh of electricity and 4,440 therms of natural gas for the year.
Which law requires 111-121 Green St to report its energy use?
111-121 Green 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:102172:2024). 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
- 351-353 W Second St· 14,272 sq ft · EUI 32.0 kBtu/ft²
- 5 Albemarle St· 14,250 sq ft · EUI 34.9 kBtu/ft²
- 70-72 Joy St· 14,250 sq ft · score 76 (B)
- 94 Corey Rd· 14,212 sq ft · score 83 (B)
- 14-16 Annapolis St· 14,200 sq ft · EUI 106.8 kBtu/ft²
- 2-4 Annapolis St· 14,200 sq ft · EUI 106.9 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 111-121 Green St's energy grade?
111-121 Green St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 42.0 kBtu/ft².
How much energy does 111-121 Green St use?
Its 2024 site energy-use intensity was 42.0 kBtu/ft² across 14,316 sq ft, including 52,677 kWh of electricity and 4,440 therms of natural gas.
What are 111-121 Green St's carbon emissions?
111-121 Green St reported 34 tCO₂e of greenhouse-gas emissions for 2024.
Where is 111-121 Green St?
111-121 Green St is in Boston, Massachusetts 2130.
How big is 111-121 Green St and when was it built?
111-121 Green St has 14,316 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 111-121 Green 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, “111-121 Green St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/111-121-green-st-e5fd1760 (data as of July 9, 2026).