BuildingCensus
B

UNION TRUST ANNEX

Office in Seattle, WA · 117 S MAIN ST · 98104

ENERGY STAR score
76
band B · 2024
Site EUI
38.4
kBtu/ft²
GHG emissions
6
tCO₂e
GHG intensity
0.2
kgCO₂e/ft²
Floor area
27,838
sq ft
Year built
1902
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score76 (band B)
Site EUI38.4 kBtu/ft²
Source EUI107.5 kBtu/ft²
GHG emissions6 tCO₂e
GHG intensity0.2 kgCO₂e/ft²
Electricity313,122 kWh
Gross floor area27,838 sq ft
Source recordseattle:25660:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest76-338.4 kBtu/ft²6 tCO₂e
202379±036.9 kBtu/ft²6 tCO₂e
202279+137.2 kBtu/ft²6 tCO₂e
202178-537.3 kBtu/ft²6 tCO₂e
202083+1733.6 kBtu/ft²5 tCO₂e
201966+245.6 kBtu/ft²7 tCO₂e
201864+1746.6 kBtu/ft²8 tCO₂e
201747-3054.3 kBtu/ft²9 tCO₂e
201677+643.7 kBtu/ft²7 tCO₂e
20157148.3 kBtu/ft²8 tCO₂e

Compliance context

Seattle Energy Benchmarking Ordinance (SMC 22.920)

Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.

Program details →

Ownership

No owner listed in the disclosure.

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Location

Address
117 S MAIN ST
State
Washington
ZIP
98104
Coordinates
47.59979, -122.33339

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

Frequently asked questions

What is UNION TRUST ANNEX's energy grade?

UNION TRUST ANNEX scores 76 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2024 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does UNION TRUST ANNEX use?

Its 2024 site energy-use intensity was 38.4 kBtu/ft² (107.5 kBtu/ft² source) across 27,838 sq ft, including 313,122 kWh of electricity.

What are UNION TRUST ANNEX's carbon emissions?

UNION TRUST ANNEX reported 6 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2024. Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.

Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:25660:2024.