BuildingCensus
B

20 Custom House St

Office in Boston, MA · 2109.

ENERGY STAR score
74
band B · 2024
Site EUI
48.1
kBtu/ft²
GHG emissions
522
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
190,451
sq ft
Year built
—
vintage

BERDO 2.0 · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score74 (band B)
Site EUI48.1 kBtu/ft²
Source EUI—
GHG emissions522 tCO₂e
GHG intensity—
Electricity2,682,631 kWh
Gross floor area190,451 sq ft
Source recordboston:100371:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest74-548.1 kBtu/ft²522 tCO₂e
202379+5646.6 kBtu/ft²533 tCO₂e
20222399.3 kBtu/ft²754 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.

Program details →

Ownership

AMAN INC DEL CORP

Own or manage this building? Claim it to correct the record and get compliance alerts.

Location

Address
20 Custom House St
City
Boston
State
Massachusetts
ZIP
2109.

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

Frequently asked questions

What is 20 Custom House St's energy grade?

20 Custom House St scores 74 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2024 Boston disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 20 Custom House St use?

Its 2024 site energy-use intensity was 48.1 kBtu/ft² across 190,451 sq ft, including 2,682,631 kWh of electricity.

What are 20 Custom House St's carbon emissions?

20 Custom House St reported 522 tCO₂e of greenhouse-gas emissions for 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.

Working with Boston building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Building Emissions Reduction and Disclosure Ordinance disclosure, record boston:100371:2024.