20 Child St
K-12 School in Boston, MA · 2130.
At a glance
20 Child St is a 115,400-square-foot K-12 school in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 51 out of 100 (grade D), a site energy-use intensity of 54.6 kBtu/ft² and 346 tCO₂e of greenhouse-gas emissions. That score is higher than 34% of the 163 scored K-12 school buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 51 (band D) |
| Site EUI | 54.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 346 tCO₂e |
| GHG intensity | — |
| Electricity | 854,082 kWh |
| Natural gas | 33,916 therms |
| Gross floor area | 115,400 sq ft |
| Source record | boston:101991:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 51 | +1 | 54.6 kBtu/ft² | 346 tCO₂e |
| 2023 | 50 | +10 | 52.8 kBtu/ft² | 344 tCO₂e |
| 2022 | 40 | 62.9 kBtu/ft² | 473 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
CITY OF BOSTON
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Location
- Address
- 20 Child 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 20 Child St compare with other K-12 school buildings in Boston?
The latest disclosures cover 175 K-12 school buildings in Boston, out of 6,305 buildings citywide. 20 Child St's ENERGY STAR score of 51 compares with an average of 59 across the 163 that report a score; it scores higher than 34% of them and lower than 65%. Its site EUI of 54.6 kBtu/ft² is about 15% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 115,400 sq ft, it is about 39% above the average floor area of 83,066 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has 20 Child St's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 20 Child St, covering report years 2022–2024. Its ENERGY STAR score went from 40 in 2022 to 51 in 2024 (+11 points). Site EUI moved from 62.9 kBtu/ft² (2022) to 54.6 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 473 tCO₂e to 346 tCO₂e over the same span (down 27%).
What does an ENERGY STAR score of 51 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 51 means the building performs better than about 51% of its national peers. BuildingCensus bands the score into report-card grades; 51 falls in band D — lowest band (1–54). It sits 24 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. 20 Child St's 54.6 kBtu/ft² across 115,400 sq ft works out to about 6.3 billion Btu (1,847 MWh-equivalent) in 2024. The disclosure also reports 854,082 kWh of electricity and 33,916 therms of natural gas for the year.
Which law requires 20 Child St to report its energy use?
20 Child 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:101991:2024). 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 K-12 school buildings in Boston
- 20 Warren St· 113,199 sq ft · score 62 (C)
- 105 Cummins Hwy· 110,377 sq ft · score 84 (B)
- K-12 School building #106326· 109,102 sq ft · score 56 (C)
- 77 Lawrence Ave· 108,859 sq ft · score 69 (C)
- 215 Dorchester St· 107,077 sq ft · score 86 (A)
- 20 Outlook Rd· 105,480 sq ft · score 52 (D)
- K-12 School buildings in Boston· 175 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 20 Child St's energy grade?
20 Child St scores 51 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 20 Child St use?
Its 2024 site energy-use intensity was 54.6 kBtu/ft² across 115,400 sq ft, including 854,082 kWh of electricity and 33,916 therms of natural gas.
What are 20 Child St's carbon emissions?
20 Child St reported 346 tCO₂e of greenhouse-gas emissions for 2024.
Where is 20 Child St?
20 Child St is in Boston, Massachusetts 2130.
How big is 20 Child St and when was it built?
20 Child St has 115,400 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as K-12 school.
Is 20 Child 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, “20 Child St, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/20-child-st-7b8f75ce (data as of July 9, 2026).