U-Haul Rentals & Mini-Storage
Self-Storage Facility in Seattle, WA · 6343 35TH AVE SW · 98126
At a glance
U-Haul Rentals & Mini-Storage is a 52,088-square-foot self-storage facility at 6343 35TH AVE SW in Seattle, Washington, built in 1969. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 31.3 kBtu/ft² and 30 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 31.3 kBtu/ft² |
| Source EUI | 62.9 kBtu/ft² |
| GHG emissions | 30 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 190,082 kWh |
| Natural gas | 5,337 therms |
| Gross floor area | 52,088 sq ft |
| Source record | seattle:230:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 31.3 kBtu/ft² | 30 tCO₂e | |
| 2024 | — | 30.1 kBtu/ft² | 36 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | — | 33.5 kBtu/ft² | 71 tCO₂e | |
| 2019 | — | 29.3 kBtu/ft² | 56 tCO₂e | |
| 2018 | — | 27.1 kBtu/ft² | 49 tCO₂e | |
| 2017 | — | 27.0 kBtu/ft² | 48 tCO₂e | |
| 2016 | — | 26.4 kBtu/ft² | 48 tCO₂e | |
| 2015 | — | 22.8 kBtu/ft² | 39 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
- 6343 35TH AVE SW
- City
- Seattle
- State
- Washington
- ZIP
- 98126
- Coordinates
- 47.54508, -122.37737
Within ~1 km
Nearby benchmarked buildings
- Upton Flats At High Pointscore 100
Multifamily Housing · 147,082 sq ft
- Bridge Park Holiday Retirementscore 89
Multifamily Housing · 144,682 sq ft
- Providence Elizabeth Housescore 83
Multifamily Housing · 56,334 sq ft
K-12 School · 54,528 sq ft
- West Seattle Food Bankscore 65
Multifamily Housing · 52,134 sq ft
- Stewart Manorscore 33
Multifamily Housing · 49,510 sq ft
See also: most efficient in Seattle · biggest emitters
How does U-Haul Rentals & Mini-Storage 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 31.3 kBtu/ft² is about twice the average of 15.6 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 about 160% above the group average of 0.3 kgCO₂e/ft².
At 52,088 sq ft, it is about 41% below the average floor area of 88,206 sq ft for those buildings. It was built in 1969, 7 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 U-Haul Rentals & Mini-Storage's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for U-Haul Rentals & Mini-Storage, covering report years 2015–2025. Site EUI moved from 22.8 kBtu/ft² (2015) to 31.3 kBtu/ft² (2025), an 37% increase. Reported emissions went from 39 tCO₂e to 30 tCO₂e over the same span (down 24%).
What does a site EUI of 31.3 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. U-Haul Rentals & Mini-Storage's 31.3 kBtu/ft² across 52,088 sq ft works out to about 1.6 billion Btu (478 MWh-equivalent) in 2025. Its source EUI of 62.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 190,082 kWh of electricity and 5,337 therms of natural gas for the year.
Which law requires U-Haul Rentals & Mini-Storage to report its energy use?
U-Haul Rentals & Mini-Storage 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:230:2025). 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
- Mini Warehouse/Warehouse· 48,179 sq ft · EUI 17.8 kBtu/ft²
- Downtown Self Storage· 46,580 sq ft · EUI 16.5 kBtu/ft²
- Self Storage Mini Warehouse· 39,952 sq ft · EUI 1.3 kBtu/ft²
- Roosevelt Self Storage· 38,959 sq ft · EUI 36.9 kBtu/ft²
- Public Storage· 36,600 sq ft · EUI 3.7 kBtu/ft²
- Superior Self Storage Mini Whse· 36,444 sq ft · EUI 3.3 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 U-Haul Rentals & Mini-Storage's energy grade?
U-Haul Rentals & Mini-Storage did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 31.3 kBtu/ft².
How much energy does U-Haul Rentals & Mini-Storage use?
Its 2025 site energy-use intensity was 31.3 kBtu/ft² (62.9 kBtu/ft² source) across 52,088 sq ft, including 190,082 kWh of electricity and 5,337 therms of natural gas.
What are U-Haul Rentals & Mini-Storage's carbon emissions?
U-Haul Rentals & Mini-Storage reported 30 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025.
Where is U-Haul Rentals & Mini-Storage?
U-Haul Rentals & Mini-Storage is at 6343 35TH AVE SW, in Seattle, Washington 98126. Its coordinates are 47.54508, -122.37737 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is U-Haul Rentals & Mini-Storage and when was it built?
U-Haul Rentals & Mini-Storage has 52,088 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1969 as its year built. It is classed as self-storage facility.
Is U-Haul Rentals & Mini-Storage 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, “U-Haul Rentals & Mini-Storage, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/u-haul-rentals-mini-storage-5f071b43 (data as of October 2, 2026).