BuildingCensus
B

20 Guest St

Office in Boston, MA · 02135

ENERGY STAR score
70
band B · 2024
Site EUI
48.8
kBtu/ft²
GHG emissions
651
tCO₂e
GHG intensity
kgCO₂e/ft²
Floor area
234,444
sq ft
Year built
vintage

BERDO 2.0 · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score70 (band B)
Site EUI48.8 kBtu/ft²
Source EUI
GHG emissions651 tCO₂e
GHG intensity
Electricity3,260,975 kWh
Natural gas3,037 therms
Gross floor area234,444 sq ft
Source recordboston:108085:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest70-448.8 kBtu/ft²651 tCO₂e
20237445.0 kBtu/ft²634 tCO₂e

Compliance context

BERDO 2.0

BERDO 2.0 sets emissions standards for buildings over 20,000 sq ft from 2025, with an alternative-compliance payment of $234 per metric ton of CO₂e over the cap.

Program details →

Ownership

AG 20 Guest Street Owner, LLC

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Location

Address
20 Guest St
City
Boston
State
Massachusetts
ZIP
02135

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 Guest St's energy grade?

20 Guest St scores 70 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 Guest St use?

Its 2024 site energy-use intensity was 48.8 kBtu/ft² across 234,444 sq ft, including 3,260,975 kWh of electricity and 3,037 therms of natural gas.

What are 20 Guest St's carbon emissions?

20 Guest St reported 651 tCO₂e of greenhouse-gas emissions for 2024. BERDO 2.0 sets emissions standards for buildings over 20,000 sq ft from 2025, with an alternative-compliance payment of $234 per metric ton of CO₂e over the cap.

Dataset updated . Source: Building Emissions Reduction and Disclosure Ordinance disclosure, record boston:108085:2024.