At a glance
The Weller Building is a 70,332-square-foot office building at 1225 S WELLER ST in Seattle, Washington, built in 2001.
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 | — |
| Natural gas | 2,532 therms |
| Gross floor area | 70,332 sq ft |
| Source record | seattle:23164:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | 90 | -1 | 41.1 kBtu/ft² | 32 tCO₂e |
| 2023 | 91 | +4 | 38.2 kBtu/ft² | 25 tCO₂e |
| 2022 | 87 | +1 | 45.0 kBtu/ft² | 34 tCO₂e |
| 2021 | 86 | -2 | 45.8 kBtu/ft² | 37 tCO₂e |
| 2020 | 88 | +8 | 41.3 kBtu/ft² | 27 tCO₂e |
| 2019 | 80 | +2 | 47.3 kBtu/ft² | 27 tCO₂e |
| 2018 | 78 | +2 | 51.2 kBtu/ft² | 34 tCO₂e |
| 2017 | 76 | -13 | 44.7 kBtu/ft² | 17 tCO₂e |
| 2016 | 89 | +2 | 44.6 kBtu/ft² | 17 tCO₂e |
| 2015 | 87 | 46.7 kBtu/ft² | 18 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.
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
- 1225 S WELLER ST
- City
- Seattle
- State
- Washington
- ZIP
- 98144
- Coordinates
- 47.59728, -122.31587
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does The Weller Building compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide.
At 70,332 sq ft, it is about 64% below the average floor area of 196,452 sq ft for those buildings. It was built in 2001, 36 years later 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.
How has The Weller Building's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for The Weller Building, covering report years 2015–2025. Its ENERGY STAR score went from 87 in 2015 to 90 in 2024 (+3 points); its best year on file was 2023, at 91. Site EUI moved from 46.7 kBtu/ft² (2015) to 41.1 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 18 tCO₂e to 32 tCO₂e over the same span (up 73%).
Which law requires The Weller Building to report its energy use?
The Weller 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:23164:2025). 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
- Canal Pl Office Park· 70,296 sq ft · EUI 44.0 kBtu/ft²
- Globe Building· 69,817 sq ft · score 86 (A)
- 625 Union Station· 68,452 sq ft · score 82 (B)
- Union Stables· 68,400 sq ft · score 92 (A)
- The Reedo Building· 66,842 sq ft · score 45 (D)
- Harbor Avenue Campus· 66,473 sq ft
- 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 The Weller Building's energy grade?
The Weller Building did not report an ENERGY STAR score in its 2025 disclosure.
How much energy does The Weller Building use?
No energy-use intensity was reported for 2025.
What are The Weller Building's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is The Weller Building?
The Weller Building is at 1225 S WELLER ST, in Seattle, Washington 98144. Its coordinates are 47.59728, -122.31587 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is The Weller Building and when was it built?
The Weller Building has 70,332 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2001 as its year built. It is classed as office.
Is The Weller 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, “The Weller Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/the-weller-building-49d367e6 (data as of October 2, 2026).