January 9, 2026
Good news for local shoppers—and another sign of Eagle’s steady growth. Costco has formally applied to build a warehouse store at the northwest corner of Idaho 55 and Hill Rd, on the Eagle/Boise border, near the Eagle Bike Park. The submittal includes a 166,000-sq-ft store, 912 parking spaces, and a fuel station on a former gravel quarry site.
Where it would go & why they chose this spot
Plans show the primary entrance from a new roundabout on Hill Rd, with a second roundabout proposed at Horseshoe Bend Rd & Hill Rd, plus two right-in/right-out access points with accel/decel lanes to keep traffic moving. A traffic study estimates 6,985 new vehicle trips at build-out in 2027. The location sits near the Idaho State Veterans Cemetery and would serve fast-growing areas like Dry Creek Ranch, Avimor, and NW Boise, while shortening the trip for Valley County and Horseshoe Bend residents who currently drive to North Meridian. To proceed, the property must be rezoned from mixed-use to commercial by the City of Eagle.
How this fits the bigger Treasure Valley picture
If approved, Eagle would be part of a growing regional footprint. The Boise metro currently has three open Costcos (Boise/Cole Rd., Nampa, and N. Meridian), with a separate South Meridian location also working through approvals—Eagle would mark a fifth area site in that context. Costco held ~9.7% of Boise’s grocery sales (2022), underscoring why siting decisions matter to both shoppers and nearby small businesses.
What it could mean for Eagle residents & homeowners
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Convenience & value: A closer Costco can cut weekly errand time and gas costs—one reason some buyers rank “proximity to big-box retail” higher than they admit on first tours.
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Traffic & design: The proposed dual roundabout access aims to smooth flow on Hill Rd while reducing conflict points versus traditional signals—watch for final engineering and ACHD/ITD coordination details as hearings approach.
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Neighborhood feel: Expect more daytime activity near Idaho 55/Hill Rd and potential fast-food pad sites in the future—something to factor when evaluating nearby homes & convenience factors.
As always, the balance between added amenities and traffic is what shapes a community’s long-term character. Eagle’s planning process—and how the site connects to bikes, pedestrians, and roundabouts—will matter as much as the store itself. We’ll keep you posted as we hear more!
Cheers,
