18 Marginal St
Multifamily Housing in Boston, MA · 2128.
At a glance
18 Marginal St is a 8,400-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported a site energy-use intensity of 87.5 kBtu/ft² and 40 tCO₂e of greenhouse-gas emissions.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 87.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 40 tCO₂e |
| GHG intensity | — |
| Electricity | 85,861 kWh |
| Natural gas | 4,422 therms |
| Gross floor area | 8,400 sq ft |
| Source record | boston:103651:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 87.5 kBtu/ft² | 40 tCO₂e | |
| 2023 | — | 82.8 kBtu/ft² | 39 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
HERITAGE HOUSING CORP
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Location
- Address
- 18 Marginal St
- City
- Boston
- State
- Massachusetts
- ZIP
- 2128.
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 18 Marginal 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 87.5 kBtu/ft² is about 29% above the average of 67.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 8,400 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 18 Marginal St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 18 Marginal St, covering report years 2022–2024. Site EUI moved from 82.8 kBtu/ft² (2023) to 87.5 kBtu/ft² (2024), an 6% increase. Reported emissions went from 39 tCO₂e to 40 tCO₂e over the same span (up 3%).
What does a site EUI of 87.5 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. 18 Marginal St's 87.5 kBtu/ft² across 8,400 sq ft works out to about 0.7 billion Btu (215 MWh-equivalent) in 2024. The disclosure also reports 85,861 kWh of electricity and 4,422 therms of natural gas for the year.
Which law requires 18 Marginal St to report its energy use?
18 Marginal 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:103651:2024). 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
- 211 Beacon St· 8,388 sq ft · EUI 25.3 kBtu/ft²
- 135 Farragut Rd· 8,386 sq ft · EUI 191.6 kBtu/ft²
- 23 Elmore St· 8,385 sq ft · EUI 40.1 kBtu/ft²
- 99 Brainerd Rd· 8,300 sq ft · score 45 (D)
- 15 Elmore St· 8,276 sq ft · EUI 45.4 kBtu/ft²
- 9 Elmore St· 8,226 sq ft · EUI 44.0 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 18 Marginal St's energy grade?
18 Marginal St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 87.5 kBtu/ft².
How much energy does 18 Marginal St use?
Its 2024 site energy-use intensity was 87.5 kBtu/ft² across 8,400 sq ft, including 85,861 kWh of electricity and 4,422 therms of natural gas.
What are 18 Marginal St's carbon emissions?
18 Marginal St reported 40 tCO₂e of greenhouse-gas emissions for 2024.
Where is 18 Marginal St?
18 Marginal St is in Boston, Massachusetts 2128.
How big is 18 Marginal St and when was it built?
18 Marginal St has 8,400 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 18 Marginal 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, “18 Marginal St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/18-marginal-st-a6e32e60 (data as of July 9, 2026).