Port Of Seattle- Terminal 18 (Campus)
Mixed Use Property in Seattle, WA · 2900 11TH AVE SW · 98134
At a glance
Port Of Seattle- Terminal 18 (Campus) is a 51,000-square-foot mixed use property building at 2900 11TH AVE SW in Seattle, Washington, built in 2001. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 445.1 kBtu/ft² and 416 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 445.1 kBtu/ft² |
| Source EUI | 1191.9 kBtu/ft² |
| GHG emissions | 416 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 12,583,930 kWh |
| Natural gas | 32,243 therms |
| Gross floor area | 51,000 sq ft |
| Source record | seattle:23271:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 445.1 kBtu/ft² | 416 tCO₂e | |
| 2024 | — | 318.1 kBtu/ft² | 388 tCO₂e | |
| 2023 | — | 342.6 kBtu/ft² | 400 tCO₂e | |
| 2022 | — | 350.6 kBtu/ft² | 497 tCO₂e | |
| 2021 | — | 494.9 kBtu/ft² | 665 tCO₂e | |
| 2020 | — | 492.9 kBtu/ft² | 502 tCO₂e | |
| 2019 | — | 446.7 kBtu/ft² | 346 tCO₂e | |
| 2018 | — | 561.5 kBtu/ft² | 435 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
- 2900 11TH AVE SW
- City
- Seattle
- State
- Washington
- ZIP
- 98134
- Coordinates
- 47.57694, -122.34843
Within ~1 km
Nearby benchmarked buildings
Office · 139,557 sq ft
Mixed Use Property · 68,640 sq ft
- Harbor Marina Bldgs E & Fscore 85
Office · 60,657 sq ft
Transportation Terminal/Station · 41,280 sq ft
- Fraser Boiler Servicescore —
Other · 28,109 sq ft
- Warehouse Innovationsscore 32
Non-Refrigerated Warehouse · 20,200 sq ft
See also: most efficient in Seattle · biggest emitters
How does Port Of Seattle- Terminal 18 (Campus) compare with other mixed use property buildings in Seattle?
The latest disclosures cover 157 mixed use property buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 445.1 kBtu/ft² is about 548% above the average of 68.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.0 kgCO₂e/ft² is about 186% above the group average of 1.4 kgCO₂e/ft².
At 51,000 sq ft, it is about 69% below the average floor area of 165,352 sq ft for those buildings. It was built in 2001, 33 years later than the group's average year built (1968). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has Port Of Seattle- Terminal 18 (Campus)'s energy performance changed over time?
BuildingCensus holds 8 Seattle disclosures for Port Of Seattle- Terminal 18 (Campus), covering report years 2018–2025. Site EUI moved from 561.5 kBtu/ft² (2018) to 445.1 kBtu/ft² (2025), a 21% decrease. Reported emissions went from 435 tCO₂e to 416 tCO₂e over the same span (down 5%).
What does a site EUI of 445.1 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Port Of Seattle- Terminal 18 (Campus)'s 445.1 kBtu/ft² across 51,000 sq ft works out to about 22.7 billion Btu (6,653 MWh-equivalent) in 2025. Its source EUI of 1191.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 12,583,930 kWh of electricity and 32,243 therms of natural gas for the year.
Which law requires Port Of Seattle- Terminal 18 (Campus) to report its energy use?
Port Of Seattle- Terminal 18 (Campus) 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:23271:2025). 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 mixed use property buildings in Seattle
- New Central Hotel Condominium· 49,299 sq ft · EUI 71.1 kBtu/ft²
- Pike Place - Economy Market· 49,280 sq ft · EUI 122.5 kBtu/ft²
- Saturn Building· 46,958 sq ft · score 75 (B)
- Old Spaghetti Factory Building· 46,620 sq ft · EUI 33.5 kBtu/ft²
- Pcf1xx/Re-Pc/Brinks· 46,183 sq ft · EUI 29.3 kBtu/ft²
- Harvard Market· 45,243 sq ft · EUI 180.7 kBtu/ft²
- Mixed Use Property buildings in Seattle· 157 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 Port Of Seattle- Terminal 18 (Campus)'s energy grade?
Port Of Seattle- Terminal 18 (Campus) did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 445.1 kBtu/ft².
How much energy does Port Of Seattle- Terminal 18 (Campus) use?
Its 2025 site energy-use intensity was 445.1 kBtu/ft² (1191.9 kBtu/ft² source) across 51,000 sq ft, including 12,583,930 kWh of electricity and 32,243 therms of natural gas.
What are Port Of Seattle- Terminal 18 (Campus)'s carbon emissions?
Port Of Seattle- Terminal 18 (Campus) reported 416 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2025.
Where is Port Of Seattle- Terminal 18 (Campus)?
Port Of Seattle- Terminal 18 (Campus) is at 2900 11TH AVE SW, in Seattle, Washington 98134. Its coordinates are 47.57694, -122.34843 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Port Of Seattle- Terminal 18 (Campus) and when was it built?
Port Of Seattle- Terminal 18 (Campus) has 51,000 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2001 as its year built. It is classed as mixed use property.
Is Port Of Seattle- Terminal 18 (Campus) 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).
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.
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, “Port Of Seattle- Terminal 18 (Campus), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/port-of-seattle-terminal-18-campus-47578b36 (data as of October 2, 2026).