At a glance
1 City Hall Plz is a 513,000-square-foot office building in Boston, Massachusetts. In its 2024 Boston benchmarking disclosure it reported an ENERGY STAR score of 55 out of 100 (grade C), a site energy-use intensity of 78.8 kBtu/ft² and 2,336 tCO₂e of greenhouse-gas emissions. That score is higher than 20% of the 356 scored office buildings in Boston.
BERDO 2.0 · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 55 (band C) |
| Site EUI | 78.8 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 2,336 tCO₂e |
| GHG intensity | — |
| Electricity | 7,592,711 kWh |
| Gross floor area | 513,000 sq ft |
| Source record | boston:101891:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 55 | +6 | 78.8 kBtu/ft² | 2,336 tCO₂e |
| 2023 | 49 | +11 | 82.9 kBtu/ft² | 2,642 tCO₂e |
| 2022 | 38 | 93.6 kBtu/ft² | 3,625 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
- 1 City Hall Plz
- City
- Boston
- State
- Massachusetts
- ZIP
- 2114.
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 1 City Hall Plz compare with other office buildings in Boston?
The latest disclosures cover 467 office buildings in Boston, out of 6,305 buildings citywide. 1 City Hall Plz's ENERGY STAR score of 55 compares with an average of 71 across the 356 that report a score; it scores higher than 20% of them and lower than 78%. Its site EUI of 78.8 kBtu/ft² is about 28% above the average of 61.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 513,000 sq ft, it is about 167% above the average floor area of 191,803 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 1 City Hall Plz's energy performance changed over time?
BuildingCensus holds 3 Boston disclosures for 1 City Hall Plz, covering report years 2022–2024. Its ENERGY STAR score went from 38 in 2022 to 55 in 2024 (+17 points). Site EUI moved from 93.6 kBtu/ft² (2022) to 78.8 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 3,625 tCO₂e to 2,336 tCO₂e over the same span (down 36%).
What does an ENERGY STAR score of 55 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 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 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. 1 City Hall Plz's 78.8 kBtu/ft² across 513,000 sq ft works out to about 40.4 billion Btu (11,847 MWh-equivalent) in 2024. The disclosure also reports 7,592,711 kWh of electricity for the year.
Which law requires 1 City Hall Plz to report its energy use?
1 City Hall Plz 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:101891:2024). 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 office buildings in Boston
- Office building #102387· 512,095 sq ft · score 42 (D)
- 1-59 Saint James Ave· 507,664 sq ft · score 71 (B)
- Office building #100028· 486,562 sq ft · score 90 (A)
- 93-101 Arch St· 473,896 sq ft · score 72 (B)
- 10A Post Office Sq· 451,947 sq ft · score 73 (B)
- 176 Lincoln St· 450,000 sq ft · score 100 (A)
- Office buildings in Boston· 467 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 1 City Hall Plz's energy grade?
1 City Hall Plz scores 55 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 1 City Hall Plz use?
Its 2024 site energy-use intensity was 78.8 kBtu/ft² across 513,000 sq ft, including 7,592,711 kWh of electricity.
What are 1 City Hall Plz's carbon emissions?
1 City Hall Plz reported 2,336 tCO₂e of greenhouse-gas emissions for 2024.
Where is 1 City Hall Plz?
1 City Hall Plz is in Boston, Massachusetts 2114.
How big is 1 City Hall Plz and when was it built?
1 City Hall Plz has 513,000 sq ft of gross floor area, as reported in its 2024 disclosure. It is classed as office.
Is 1 City Hall Plz 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, “1 City Hall Plz, Boston, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/boston/1-city-hall-plz-19226b94 (data as of July 9, 2026).