R & D Interbay Building
Manufacturing/Industrial Plant in Seattle, WA · 3455 THORNDYKE AVE W · 98119
At a glance
R & D Interbay Building is a 26,800-square-foot manufacturing/industrial plant at 3455 THORNDYKE AVE W in Seattle, Washington, built in 2016.
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 | 138,632 kWh |
| Gross floor area | 26,800 sq ft |
| Source record | seattle:50348:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | — | 27.4 kBtu/ft² | 15 tCO₂e | |
| 2023 | — | 26.7 kBtu/ft² | 14 tCO₂e | |
| 2022 | — | 28.8 kBtu/ft² | 15 tCO₂e | |
| 2021 | — | 27.9 kBtu/ft² | 13 tCO₂e | |
| 2020 | — | 26.6 kBtu/ft² | 15 tCO₂e | |
| 2019 | — | 28.3 kBtu/ft² | 18 tCO₂e | |
| 2018 | — | 26.1 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
- 3455 THORNDYKE AVE W
- City
- Seattle
- State
- Washington
- ZIP
- 98119
- Coordinates
- 47.65189, -122.37839
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does R & D Interbay Building compare with other manufacturing/industrial plant buildings in Seattle?
The latest disclosures cover 14 manufacturing/industrial plant buildings in Seattle, out of 3,871 buildings citywide.
At 26,800 sq ft, it is about 60% below the average floor area of 66,769 sq ft for those buildings. It was built in 2016, 40 years later than the group's average year built (1976). Across all 24 jurisdictions BuildingCensus covers, the 2,372 manufacturing/industrial plant buildings average an ENERGY STAR score of 67 and a site EUI of 126.3 kBtu/ft².
How has R & D Interbay Building's energy performance changed over time?
BuildingCensus holds 8 Seattle disclosures for R & D Interbay Building, covering report years 2018–2025. Site EUI moved from 26.1 kBtu/ft² (2018) to 27.4 kBtu/ft² (2024), an 5% increase. Reported emissions went from 18 tCO₂e to 15 tCO₂e over the same span (down 15%).
Which law requires R & D Interbay Building to report its energy use?
R & D Interbay 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:50348:2025). 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 manufacturing/industrial plant buildings in Seattle
- Am Building· 26,660 sq ft · EUI 48.1 kBtu/ft²
- Mer Equipement Inc· 23,169 sq ft · EUI 23.1 kBtu/ft²
- ECO CHEMICAL - EXEMPT· 22,800 sq ft · EUI 87.4 kBtu/ft²
- MAX PERFORMANCE· 20,294 sq ft
- 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 R & D Interbay Building's energy grade?
R & D Interbay Building did not report an ENERGY STAR score in its 2025 disclosure.
How much energy does R & D Interbay Building use?
No energy-use intensity was reported for 2025.
What are R & D Interbay Building's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is R & D Interbay Building?
R & D Interbay Building is at 3455 THORNDYKE AVE W, in Seattle, Washington 98119. Its coordinates are 47.65189, -122.37839 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is R & D Interbay Building and when was it built?
R & D Interbay Building has 26,800 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2016 as its year built. It is classed as manufacturing/industrial plant.
Is R & D Interbay 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, “R & D Interbay Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/r-d-interbay-building-9ac4f324 (data as of October 2, 2026).