At a glance
Lloyd Building is a 63,409-square-foot office building at 603 STEWART ST in Seattle, Washington, built in 1926.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 84,643 kWh |
| Gross floor area | 63,409 sq ft |
| Source record | seattle:330:2025 |
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.
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
- 603 STEWART ST
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.61356, -122.33665
Within ~1 km
Nearby benchmarked buildings
- Seattle Convention Centerscore —
Convention Center · 1,842,925 sq ft
- Two Union Squarescore 96
Office · 1,605,578 sq ft
Office · 1,599,394 sq ft
- Day 1 Tower And Spheres (Amazon)score 93
Office · 1,599,230 sq ft
- Russell Investments Centerscore 92
Office · 1,592,914 sq ft
- Onni South Lake Unionscore 77
Multifamily Housing · 1,546,084 sq ft
See also: most efficient in Seattle · biggest emitters
How does Lloyd Building compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide.
At 63,409 sq ft, it is about 68% below the average floor area of 196,452 sq ft for those buildings. It was built in 1926, 39 years earlier than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
Which law requires Lloyd Building to report its energy use?
Lloyd Building reports under the Seattle Energy Benchmarking Ordinance (SMC 22.920), the legal basis of Seattle's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record seattle:330:2025). 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.
More office buildings in Seattle
- SEIU LOCAL 775- SEATTLE BUILDING· 63,150 sq ft
- Pier 54· 62,900 sq ft · EUI 115.7 kBtu/ft²
- Goodwill Job Training & Education Ctr· 62,662 sq ft · score 57 (C)
- Cascade Public Media (Formerly Childhaven)· 62,494 sq ft · score 75 (B)
- Taylor Edwards Building(Formerly Mckinnon Furniture)· 62,370 sq ft · score 59 (C)
- First & Cedar Building· 61,825 sq ft · score 77 (B)
- Office buildings in Seattle· 497 benchmarked
- All Seattle benchmarked buildings· Seattle Energy Benchmarking Ordinance (SMC 22.920)
- Most efficient large buildings in Seattle
- Least efficient large buildings in Seattle
- Biggest emitters in Seattle
Frequently asked questions
What is Lloyd Building's energy grade?
Lloyd Building did not report an ENERGY STAR score in its 2025 disclosure.
How much energy does Lloyd Building use?
No energy-use intensity was reported for 2025.
What are Lloyd Building's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is Lloyd Building?
Lloyd Building is at 603 STEWART ST, in Seattle, Washington 98101. Its coordinates are 47.61356, -122.33665 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Lloyd Building and when was it built?
Lloyd Building has 63,409 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1926 as its year built. It is classed as office.
Is Lloyd Building covered by the Seattle Energy Benchmarking Ordinance (SMC 22.920)?
Yes — it appears in the 2025 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Seattle Energy Benchmarking Ordinance (SMC 22.920).
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About this data
Source: Building Energy Benchmarking (Seattle Energy Benchmarking Ordinance (SMC 22.920)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Lloyd Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/lloyd-building-dce01433 (data as of October 2, 2026).