BuildingCensus
C

278 Humboldt Ave

Multifamily Housing in Boston, MA · 2121.

At a glance

278 Humboldt Ave is a 29,706-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 65 out of 100 (grade C), a site energy-use intensity of 64.3 kBtu/ft² and 103 tCO₂e of greenhouse-gas emissions. That score is higher than 33% of the 1,225 scored multifamily housing buildings in Boston.

ENERGY STAR score
65
band C · 2024
Site EUI
64.3
kBtu/ft²
GHG emissions
103
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
29,706
sq ft
Year built
—
vintage

BERDO 2.0 · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score65 (band C)
Site EUI64.3 kBtu/ft²
Source EUI—
GHG emissions103 tCO₂e
GHG intensity—
Electricity127,134 kWh
Natural gas14,766 therms
Gross floor area29,706 sq ft
Source recordboston:103112:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest65-964.3 kBtu/ft²103 tCO₂e
202374±060.0 kBtu/ft²97 tCO₂e
20227462.7 kBtu/ft²110 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.

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Ownership

FRANKLIN HIGHLANDS LP

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Location

Address
278 Humboldt Ave
City
Boston
State
Massachusetts
ZIP
2121.

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 278 Humboldt Ave 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. 278 Humboldt Ave's ENERGY STAR score of 65 compares with an average of 71 across the 1,225 that report a score; it scores higher than 33% of them and lower than 66%. Its site EUI of 64.3 kBtu/ft² is roughly in line with the average of 67.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 29,706 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 278 Humboldt Ave's energy performance changed over time?

BuildingCensus holds 3 Boston disclosures for 278 Humboldt Ave, covering report years 2022–2024. Its ENERGY STAR score went from 74 in 2022 to 65 in 2024 (-9 points); its best year on file was 2022, at 74. Site EUI moved from 62.7 kBtu/ft² (2022) to 64.3 kBtu/ft² (2024), an 3% increase. Reported emissions went from 110 tCO₂e to 103 tCO₂e over the same span (down 6%).

What does an ENERGY STAR score of 65 mean?

ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 points below 75, the threshold for ENERGY STAR certification. In Boston, 52% of scored buildings are at 75 or above.

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. 278 Humboldt Ave's 64.3 kBtu/ft² across 29,706 sq ft works out to about 1.9 billion Btu (560 MWh-equivalent) in 2024. The disclosure also reports 127,134 kWh of electricity and 14,766 therms of natural gas for the year.

Which law requires 278 Humboldt Ave to report its energy use?

278 Humboldt Ave 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:103112:2024). 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

Frequently asked questions

What is 278 Humboldt Ave's energy grade?

278 Humboldt Ave scores 65 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 278 Humboldt Ave use?

Its 2024 site energy-use intensity was 64.3 kBtu/ft² across 29,706 sq ft, including 127,134 kWh of electricity and 14,766 therms of natural gas.

What are 278 Humboldt Ave's carbon emissions?

278 Humboldt Ave reported 103 tCO₂e of greenhouse-gas emissions for 2024.

Where is 278 Humboldt Ave?

278 Humboldt Ave is in Boston, Massachusetts 2121.

How big is 278 Humboldt Ave and when was it built?

278 Humboldt Ave has 29,706 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.

Is 278 Humboldt Ave 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, “278 Humboldt Ave, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/278-humboldt-ave-f5cd2402 (data as of July 9, 2026).