Warehouse, 3440 6TH AVE S
Distribution Center in Seattle, WA · 3440 6TH AVE S · 98134
At a glance
Warehouse, 3440 6TH AVE S is a 21,755-square-foot distribution center in Seattle, Washington, built in 1978. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 40 out of 100 (grade D) and a site energy-use intensity of 18.3 kBtu/ft². That score is higher than 18% of the 33 scored distribution center buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 40 (band D) |
| Site EUI | 18.3 kBtu/ft² |
| Source EUI | 39.6 kBtu/ft² |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 74,567 kWh |
| Natural gas | 1,428 therms |
| Gross floor area | 21,755 sq ft |
| Source record | seattle:24202:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 40 | +39 | 18.3 kBtu/ft² | — |
| 2024 | 1 | -5 | 494.1 kBtu/ft² | 67 tCO₂e |
| 2023 | 6 | -7 | 33.5 kBtu/ft² | 9 tCO₂e |
| 2022 | 13 | -10 | 29.6 kBtu/ft² | 12 tCO₂e |
| 2021 | 23 | 27.3 kBtu/ft² | 17 tCO₂e | |
| 2020 | — | 13.5 kBtu/ft² | 4 tCO₂e | |
| 2019 | — | 34.6 kBtu/ft² | 16 tCO₂e | |
| 2018 | 1 | 53.9 kBtu/ft² | 19 tCO₂e | |
| 2017 | — | 60.3 kBtu/ft² | 23 tCO₂e | |
| 2016 | — | 42.1 kBtu/ft² | 17 tCO₂e | |
| 2015 | — | 45.0 kBtu/ft² | 14 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.
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Location
- Address
- 3440 6TH AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98134
- Coordinates
- 47.57254, -122.32549
Within ~1 km
Nearby benchmarked buildings
Office · 338,063 sq ft
Office · 213,696 sq ft
Other - Utility · 179,161 sq ft
Refrigerated Warehouse · 174,227 sq ft
Other - Services · 162,157 sq ft
- Costco 4th Ave Sscore 65
Supermarket/Grocery Store · 158,415 sq ft
See also: most efficient in Seattle · biggest emitters
How does Warehouse, 3440 6TH AVE S compare with other distribution center buildings in Seattle?
The latest disclosures cover 38 distribution center buildings in Seattle, out of 3,871 buildings citywide. Warehouse, 3440 6TH AVE S's ENERGY STAR score of 40 compares with an average of 62 across the 33 that report a score; it scores higher than 18% of them and lower than 79%. Its site EUI of 18.3 kBtu/ft² is about 33% below the average of 27.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 21,755 sq ft, it is about 65% below the average floor area of 62,568 sq ft for those buildings. It was built in 1978, 11 years later than the group's average year built (1968). Across all 24 jurisdictions BuildingCensus covers, the 4,082 distribution center buildings average an ENERGY STAR score of 65 and a site EUI of 24.2 kBtu/ft².
How has Warehouse, 3440 6TH AVE S's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Warehouse, 3440 6TH AVE S, covering report years 2015–2025. Its ENERGY STAR score went from 1 in 2018 to 40 in 2025 (+39 points). Site EUI moved from 45.0 kBtu/ft² (2015) to 18.3 kBtu/ft² (2025), a 59% decrease. Reported emissions went from 14 tCO₂e to 67 tCO₂e over the same span (up 363%).
What does an ENERGY STAR score of 40 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 40 means the building performs better than about 40% of its national peers. BuildingCensus bands the score into report-card grades; 40 falls in band D — lowest band (1–54). It sits 35 points below 75, the threshold for ENERGY STAR certification. In Seattle, 69% of scored buildings are at 75 or above.
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. Warehouse, 3440 6TH AVE S's 18.3 kBtu/ft² across 21,755 sq ft works out to about 0.4 billion Btu (117 MWh-equivalent) in 2025. Its source EUI of 39.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 74,567 kWh of electricity and 1,428 therms of natural gas for the year.
Which law requires Warehouse, 3440 6TH AVE S to report its energy use?
Warehouse, 3440 6TH AVE S 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:24202:2025). 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 distribution center buildings in Seattle
- Honolulu Freight Service· 21,349 sq ft · EUI 9.1 kBtu/ft²
- Distribution Center buildings in Seattle· 38 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 Warehouse, 3440 6TH AVE S's energy grade?
Warehouse, 3440 6TH AVE S scores 40 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Warehouse, 3440 6TH AVE S use?
Its 2025 site energy-use intensity was 18.3 kBtu/ft² (39.6 kBtu/ft² source) across 21,755 sq ft, including 74,567 kWh of electricity and 1,428 therms of natural gas.
What are Warehouse, 3440 6TH AVE S's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is Warehouse, 3440 6TH AVE S?
Warehouse, 3440 6TH AVE S is in Seattle, Washington 98134. Its coordinates are 47.57254, -122.32549 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Warehouse, 3440 6TH AVE S and when was it built?
Warehouse, 3440 6TH AVE S has 21,755 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1978 as its year built. It is classed as distribution center.
Is Warehouse, 3440 6TH AVE S 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, “Warehouse, 3440 6TH AVE S, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/warehouse-402f49c9 (data as of October 2, 2026).