Webster St Building (Cedar Grove)
Non-Refrigerated Warehouse in Seattle, WA · 7343 EAST MARGINAL WAY S · 98108
At a glance
Webster St Building (Cedar Grove) is a 64,015-square-foot non-refrigerated warehouse at 7343 EAST MARGINAL WAY S in Seattle, Washington, built in 2007. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 51 out of 100 (grade D), a site energy-use intensity of 45.7 kBtu/ft² and 50 tCO₂e of greenhouse-gas emissions. That score is higher than 34% of the 117 scored non-refrigerated warehouse buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 51 (band D) |
| Site EUI | 45.7 kBtu/ft² |
| Source EUI | 106.7 kBtu/ft² |
| GHG emissions | 50 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 596,445 kWh |
| Natural gas | 7,322 therms |
| Gross floor area | 64,015 sq ft |
| Source record | seattle:190:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 51 | ±0 | 45.7 kBtu/ft² | 50 tCO₂e |
| 2024 | 51 | -1 | 46.1 kBtu/ft² | 53 tCO₂e |
| 2023 | 52 | -1 | 45.8 kBtu/ft² | 52 tCO₂e |
| 2022 | 53 | +2 | 47.3 kBtu/ft² | 58 tCO₂e |
| 2021 | 51 | 46.1 kBtu/ft² | 50 tCO₂e | |
| 2020 | — | 39.0 kBtu/ft² | 34 tCO₂e | |
| 2019 | — | 38.3 kBtu/ft² | 34 tCO₂e | |
| 2018 | 37 | +8 | 39.5 kBtu/ft² | 30 tCO₂e |
| 2017 | 29 | +8 | 55.2 kBtu/ft² | 55 tCO₂e |
| 2016 | 21 | +2 | 60.0 kBtu/ft² | 46 tCO₂e |
| 2015 | 19 | 62.0 kBtu/ft² | 50 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
- 7343 EAST MARGINAL WAY S
- City
- Seattle
- State
- Washington
- ZIP
- 98108
- Coordinates
- 47.53605, -122.31722
Within ~1 km
Nearby benchmarked buildings
- Boeing Plant 2 - Campusscore —
Mixed Use Property · 2,026,324 sq ft
- Frye Distribution Centerscore —
Non-Refrigerated Warehouse · 119,661 sq ft
College/University · 54,035 sq ft
- Georgetown Steam Plantscore —
Other · 39,212 sq ft
- Centurylink: Duwamish Mainscore —
Data Center · 36,140 sq ft
- Whse Multi Tenantscore 58
Non-Refrigerated Warehouse · 29,380 sq ft
See also: most efficient in Seattle · biggest emitters
How does Webster St Building (Cedar Grove) compare with other non-refrigerated warehouse buildings in Seattle?
The latest disclosures cover 164 non-refrigerated warehouse buildings in Seattle, out of 3,871 buildings citywide. Webster St Building (Cedar Grove)'s ENERGY STAR score of 51 compares with an average of 58 across the 117 that report a score; it scores higher than 34% of them and lower than 64%. Its site EUI of 45.7 kBtu/ft² is about 50% above the average of 30.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.8 kgCO₂e/ft² is roughly in line with the group average of 0.9 kgCO₂e/ft².
At 64,015 sq ft, it is roughly in line with the average floor area of 58,727 sq ft for those buildings. It was built in 2007, 47 years later than the group's average year built (1960). Across all 24 jurisdictions BuildingCensus covers, the 4,723 non-refrigerated warehouse buildings average an ENERGY STAR score of 66 and a site EUI of 26.0 kBtu/ft².
How has Webster St Building (Cedar Grove)'s energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Webster St Building (Cedar Grove), covering report years 2015–2025. Its ENERGY STAR score went from 19 in 2015 to 51 in 2025 (+32 points); its best year on file was 2022, at 53. Site EUI moved from 62.0 kBtu/ft² (2015) to 45.7 kBtu/ft² (2025), a 26% decrease. Reported emissions went from 50 tCO₂e to 50 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 51 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 51 means the building performs better than about 51% of its national peers. BuildingCensus bands the score into report-card grades; 51 falls in band D — lowest band (1–54). It sits 24 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. Webster St Building (Cedar Grove)'s 45.7 kBtu/ft² across 64,015 sq ft works out to about 2.9 billion Btu (857 MWh-equivalent) in 2025. Its source EUI of 106.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 596,445 kWh of electricity and 7,322 therms of natural gas for the year.
Which law requires Webster St Building (Cedar Grove) to report its energy use?
Webster St Building (Cedar Grove) 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:190:2025). 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 non-refrigerated warehouse buildings in Seattle
- Ballard Warehouse· 63,240 sq ft · score 99 (A)
- Pacific Iron & Metal· 61,200 sq ft · score 19 (D)
- 98 Norfolk· 60,448 sq ft · score 84 (B)
- Nwcp Bldg B· 59,650 sq ft · score 77 (B)
- WA STATE DOT 17KU01 1051 BUILDING-DEMOLISHED· 58,492 sq ft · EUI 23.4 kBtu/ft²
- W Commodore (Combined With 22510)· 56,884 sq ft · score 81 (B)
- Non-Refrigerated Warehouse buildings in Seattle· 164 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 Webster St Building (Cedar Grove)'s energy grade?
Webster St Building (Cedar Grove) scores 51 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 Webster St Building (Cedar Grove) use?
Its 2025 site energy-use intensity was 45.7 kBtu/ft² (106.7 kBtu/ft² source) across 64,015 sq ft, including 596,445 kWh of electricity and 7,322 therms of natural gas.
What are Webster St Building (Cedar Grove)'s carbon emissions?
Webster St Building (Cedar Grove) reported 50 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025.
Where is Webster St Building (Cedar Grove)?
Webster St Building (Cedar Grove) is at 7343 EAST MARGINAL WAY S, in Seattle, Washington 98108. Its coordinates are 47.53605, -122.31722 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Webster St Building (Cedar Grove) and when was it built?
Webster St Building (Cedar Grove) has 64,015 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2007 as its year built. It is classed as non-refrigerated warehouse.
Is Webster St Building (Cedar Grove) 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, “Webster St Building (Cedar Grove), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/webster-st-building-cedar-grove-3327c343 (data as of October 2, 2026).