Superior Self Storage Mini Whse
Self-Storage Facility in Seattle, WA · 832 NW 48TH ST · 98107
At a glance
Superior Self Storage Mini Whse is a 36,444-square-foot self-storage facility at 832 NW 48TH ST in Seattle, Washington, built in 1960. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 3.3 kBtu/ft².
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 3.3 kBtu/ft² |
| Source EUI | 9.1 kBtu/ft² |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 34,762 kWh |
| Gross floor area | 36,444 sq ft |
| Source record | seattle:21382:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 3.3 kBtu/ft² | — | |
| 2024 | — | 4.0 kBtu/ft² | 1 tCO₂e | |
| 2023 | — | 3.7 kBtu/ft² | 1 tCO₂e | |
| 2022 | — | 4.9 kBtu/ft² | 1 tCO₂e | |
| 2021 | — | 6.3 kBtu/ft² | 1 tCO₂e | |
| 2020 | — | 6.2 kBtu/ft² | 1 tCO₂e | |
| 2019 | 74 | -3 | 4.9 kBtu/ft² | 1 tCO₂e |
| 2018 | 77 | -1 | 4.6 kBtu/ft² | 1 tCO₂e |
| 2017 | 78 | -2 | 4.7 kBtu/ft² | 1 tCO₂e |
| 2016 | 80 | +4 | 4.4 kBtu/ft² | 1 tCO₂e |
| 2015 | 76 | 4.9 kBtu/ft² | 1 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
- 832 NW 48TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98107
- Coordinates
- 47.66388, -122.36831
Within ~1 km
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- SALMON BAY WATERWAYscore —
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- 1455 Leary Buildingscore —
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See also: most efficient in Seattle · biggest emitters
How does Superior Self Storage Mini Whse compare with other self-storage facility buildings in Seattle?
The latest disclosures cover 48 self-storage facility buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 3.3 kBtu/ft² is about 79% below the average of 15.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 36,444 sq ft, it is about 59% below the average floor area of 88,206 sq ft for those buildings. It was built in 1960, 16 years earlier than the group's average year built (1976). Across all 24 jurisdictions BuildingCensus covers, the 3,050 self-storage facility buildings average an ENERGY STAR score of 75 and a site EUI of 9.4 kBtu/ft².
How has Superior Self Storage Mini Whse's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Superior Self Storage Mini Whse, covering report years 2015–2025. Its ENERGY STAR score went from 76 in 2015 to 74 in 2019 (-2 points); its best year on file was 2016, at 80. Site EUI moved from 4.9 kBtu/ft² (2015) to 3.3 kBtu/ft² (2025), a 33% decrease. Reported emissions went from 1 tCO₂e to 1 tCO₂e over the same span (down 20%).
What does a site EUI of 3.3 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. Superior Self Storage Mini Whse's 3.3 kBtu/ft² across 36,444 sq ft works out to about 0.1 billion Btu (35 MWh-equivalent) in 2025. Its source EUI of 9.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 34,762 kWh of electricity for the year.
Which law requires Superior Self Storage Mini Whse to report its energy use?
Superior Self Storage Mini Whse 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:21382:2025). 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 self-storage facility buildings in Seattle
- Lake City Mini Storage· 34,176 sq ft · EUI 15.0 kBtu/ft²
- Northgate Self Storage· 33,344 sq ft · EUI 3.7 kBtu/ft²
- 5201/5211 1st Ave Building· 30,130 sq ft · EUI 26.4 kBtu/ft²
- Seattle Mini Warehouse· 28,800 sq ft
- Fremont Bridge Mini-Storage· 28,309 sq ft · EUI 12.5 kBtu/ft²
- 08781-University Village· 26,225 sq ft · EUI 4.4 kBtu/ft²
- Self-Storage Facility buildings in Seattle· 48 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 Superior Self Storage Mini Whse's energy grade?
Superior Self Storage Mini Whse did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 3.3 kBtu/ft².
How much energy does Superior Self Storage Mini Whse use?
Its 2025 site energy-use intensity was 3.3 kBtu/ft² (9.1 kBtu/ft² source) across 36,444 sq ft, including 34,762 kWh of electricity.
What are Superior Self Storage Mini Whse's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is Superior Self Storage Mini Whse?
Superior Self Storage Mini Whse is at 832 NW 48TH ST, in Seattle, Washington 98107. Its coordinates are 47.66388, -122.36831 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Superior Self Storage Mini Whse and when was it built?
Superior Self Storage Mini Whse has 36,444 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1960 as its year built. It is classed as self-storage facility.
Is Superior Self Storage Mini Whse 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, “Superior Self Storage Mini Whse, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/superior-self-storage-mini-whse-08f22f39 (data as of October 2, 2026).