21 Father Francis Gilday Street
Multifamily Housing in Boston, MA · 2118.
At a glance
21 Father Francis Gilday Street is a 81,750-square-foot multifamily housing building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 87 out of 100 (grade A), a site energy-use intensity of 42.2 kBtu/ft² and 188 tCO₂e of greenhouse-gas emissions. That score is higher than 61% of the 1,225 scored multifamily housing buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 87 (band A) |
| Site EUI | 42.2 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 188 tCO₂e |
| GHG intensity | — |
| Electricity | 318,232 kWh |
| Natural gas | 23,647 therms |
| Gross floor area | 81,750 sq ft |
| Source record | boston:105037:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 87 | +9 | 42.2 kBtu/ft² | 188 tCO₂e |
| 2023 | 78 | -4 | 48.0 kBtu/ft² | 216 tCO₂e |
| 2022 | 82 | 48.1 kBtu/ft² | 239 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
PENMARK CONDO TR
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Location
- Address
- 21 Father Francis Gilday Street
- City
- Boston
- State
- Massachusetts
- ZIP
- 2118.
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 21 Father Francis Gilday Street 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. 21 Father Francis Gilday Street's ENERGY STAR score of 87 compares with an average of 71 across the 1,225 that report a score; it scores higher than 61% of them and lower than 38%. Its site EUI of 42.2 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 81,750 sq ft, it is about 41% above 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 21 Father Francis Gilday Street's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 21 Father Francis Gilday Street, covering report years 2022–2024. Its ENERGY STAR score went from 82 in 2022 to 87 in 2024 (+5 points). Site EUI moved from 48.1 kBtu/ft² (2022) to 42.2 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 239 tCO₂e to 188 tCO₂e over the same span (down 21%).
What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 21 Father Francis Gilday Street's 42.2 kBtu/ft² across 81,750 sq ft works out to about 3.4 billion Btu (1,011 MWh-equivalent) in 2024. The disclosure also reports 318,232 kWh of electricity and 23,647 therms of natural gas for the year.
Which law requires 21 Father Francis Gilday Street to report its energy use?
21 Father Francis Gilday Street 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:105037:2024). 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
- 54 Orleans St· 81,565 sq ft · score 87 (A)
- 103 Ninth St· 81,000 sq ft · score 1 (D)
- Multifamily Housing building #100541· 80,768 sq ft · score 85 (A)
- 108 Kilmarnock St· 80,731 sq ft · score 82 (B)
- 2 Bismarck St· 80,244 sq ft · score 36 (D)
- 46 S Huntington Ave· 80,124 sq ft · score 85 (A)
- Multifamily Housing buildings in Boston· 2,174 benchmarked
- All Boston benchmarked buildings· BERDO 2.0
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- Biggest emitters in Boston
Frequently asked questions
What is 21 Father Francis Gilday Street's energy grade?
21 Father Francis Gilday Street scores 87 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 21 Father Francis Gilday Street use?
Its 2024 site energy-use intensity was 42.2 kBtu/ft² across 81,750 sq ft, including 318,232 kWh of electricity and 23,647 therms of natural gas.
What are 21 Father Francis Gilday Street's carbon emissions?
21 Father Francis Gilday Street reported 188 tCO₂e of greenhouse-gas emissions for 2024.
Where is 21 Father Francis Gilday Street?
21 Father Francis Gilday Street is in Boston, Massachusetts 2118.
How big is 21 Father Francis Gilday Street and when was it built?
21 Father Francis Gilday Street has 81,750 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as multifamily housing.
Is 21 Father Francis Gilday Street 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, “21 Father Francis Gilday Street, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/21-father-francis-gilday-street-5eaca8ed (data as of July 9, 2026).