A developer has filed a stack of permits worth $35.7 million for a self-storage and car wash project just down the street from one of Oʻahu's rail stations in Waipahu. MW Group submitted twelve permits for the site at 94-223 Farrington Highway, with two demolition permits still awaiting approval.
The project is planned along the Honolulu rail route, according to The Business Journals, which reports the site sits just down the street from the Hoaeae West Loch Skyline station. The address places the development in the heart of Waipahu, a community that has watched rail construction reshape its commercial corridors for years. Compass lists the property as 94-223 Farrington Hwy, Waipahu, HI 96797.
What the Permits Cover
Of the twelve permits MW Group filed, the project combines self-storage and car wash development at the Farrington Highway address, per the same Business Journals report. Two demolition permits remain pending, meaning the site's current structures have not yet been cleared for the planned build. The report does not detail a construction timeline, the project's size, or when the remaining permits might clear.
The exact distance between the site and the Hoaeae West Loch station isn't spelled out beyond the description of the project being nearby, so readers shouldn't assume a precise walking distance. Still, the location places the development within the broader footprint of transit-adjacent commercial growth that has become increasingly common along the rail corridor.
Rail Corridor Still Taking Shape
Oʻahu's Skyline system includes 19 stations along an 18.9-mile corridor on the island's south shore, according to the Honolulu Authority for Rapid Transportation. That figure has shifted over time — an earlier version of the agency's own station information described a system planned to feature 21 stations along a 20-mile corridor, though the two figures haven't been reconciled in available records. The transit authority also notes that the final two stations, Kakaʻako and Ala Moana, will be completed in a separate project phase.
Nearby, a different development illustrates how rail proximity is shaping Waipahu's growth. Keawalau at Waipahu is planned to deliver 531 affordable rental units about 300 feet from the Pouhala Station, according to New Construction Hawaii. That project is unrelated to MW Group's storage and car wash filing, but it underscores how developers across Waipahu are angling for sites close to Skyline stops.
A National Storage Market Cooling Off
MW Group's filing lands as the broader self-storage industry pulls back on new supply nationally. Developers are projected to expand U.S. self-storage inventory by just 2.2 percent in 2026, the smallest delivery slate since 2016, according to Marcus & Millichap. Completions totaled nearly 27.8 million square feet nationwide in the first half of 2026, the lowest first-half volume since 2014.
Even as construction slows, Marcus & Millichap forecasts that national vacancy will decline to 10 percent by the end of 2026, while average asking rent is projected to fall 0.8 percent to roughly $1.18 per square foot. Those national trends don't speak directly to Waipahu's market, but they frame the environment MW Group is building into.
Separately, state planners have been examining how to encourage more development near Oʻahu's rail stations. The Oahu Metropolitan Planning Organization has been helping plan a workshop aimed at studying what regulatory and financing tools have enabled successful transit-oriented development elsewhere, according to the Honolulu Star-Advertiser. No project representative, zoning determination, or neighborhood response to the Farrington Highway filing has been documented so far.
