BuildingCensus
A

Office Bldg

Office in Seattle, WA · 4209 21ST AVE W · 98199

ENERGY STAR score
92
band A · 2025
Site EUI
16.6
kBtu/ft²
GHG emissions
3
tCO₂e
GHG intensity
0.1
kgCO₂e/ft²
Floor area
30,172
sq ft
Year built
1994
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 score92 (band A)
Site EUI16.6 kBtu/ft²
Source EUI46.5 kBtu/ft²
GHG emissions3 tCO₂e
GHG intensity0.1 kgCO₂e/ft²
Electricity146,864 kWh
Gross floor area30,172 sq ft
Source recordseattle:22609:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest92+116.6 kBtu/ft²3 tCO₂e
202491±016.5 kBtu/ft²3 tCO₂e
202391+217.4 kBtu/ft²3 tCO₂e
202289-118.7 kBtu/ft²3 tCO₂e
202190+118.8 kBtu/ft²3 tCO₂e
202089+420.3 kBtu/ft²4 tCO₂e
201985+1122.5 kBtu/ft²4 tCO₂e
201874+2028.4 kBtu/ft²5 tCO₂e
201754-2833.9 kBtu/ft²6 tCO₂e
201682+430.0 kBtu/ft²5 tCO₂e
20157832.0 kBtu/ft²6 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
4209 21ST AVE W
State
Washington
ZIP
98199
Coordinates
47.65801, -122.38390

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

Frequently asked questions

What is Office Bldg's energy grade?

Office Bldg scores 92 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Office Bldg use?

Its 2025 site energy-use intensity was 16.6 kBtu/ft² (46.5 kBtu/ft² source) across 30,172 sq ft, including 146,864 kWh of electricity.

What are Office Bldg's carbon emissions?

Office Bldg reported 3 tCO₂e of greenhouse-gas emissions (0.1 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:22609:2025.