BuildingCensus
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Stewart House Condominium

Multifamily Housing in Seattle, WA · 80 STEWART ST · 98101

ENERGY STAR score
—
not reported · 2025
Site EUI
97.6
kBtu/ft²
GHG emissions
75
tCO₂e
GHG intensity
1.7
kgCO₂e/ft²
Floor area
43,248
sq ft
Year built
1904
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025

Benchmarking record

FieldValue
ENERGY STAR score—
Site EUI97.6 kBtu/ft²
Source EUI229.8 kBtu/ft²
GHG emissions75 tCO₂e
GHG intensity1.7 kgCO₂e/ft²
Electricity922,268 kWh
Natural gas10,745 therms
Gross floor area43,248 sq ft
Source recordseattle:49943:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest—97.6 kBtu/ft²75 tCO₂e
2024—99.1 kBtu/ft²79 tCO₂e
2023—99.6 kBtu/ft²77 tCO₂e
2022—101.2 kBtu/ft²84 tCO₂e
2021—102.5 kBtu/ft²82 tCO₂e
2020—92.6 kBtu/ft²64 tCO₂e
2019—95.0 kBtu/ft²58 tCO₂e
2018—131.0 kBtu/ft²72 tCO₂e
2017—130.5 kBtu/ft²65 tCO₂e
2016—136.7 kBtu/ft²74 tCO₂e
2015—141.8 kBtu/ft²77 tCO₂e

Compliance context

Seattle Energy Benchmarking Ordinance (SMC 22.920)

Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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

Location

Address
80 STEWART ST
State
Washington
ZIP
98101
Coordinates
47.60994, -122.34234

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

Frequently asked questions

What is Stewart House Condominium's energy grade?

Stewart House Condominium did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 97.6 kBtu/ft².

How much energy does Stewart House Condominium use?

Its 2025 site energy-use intensity was 97.6 kBtu/ft² (229.8 kBtu/ft² source) across 43,248 sq ft, including 922,268 kWh of electricity and 10,745 therms of natural gas.

What are Stewart House Condominium's carbon emissions?

Stewart House Condominium reported 75 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2025. Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.

Working with Seattle 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 Energy Benchmarking disclosure, record seattle:49943:2025.