Loomis’ Costco finally in the clear to start building. Here’s when it’s slated to open

Loomis’ long-awaited Costco Wholesale is nearing its groundbreaking.

The store was first proposed in 2018 and has been tied up in an environmental review and legal proceedings ever since. But after a settlement agreement was reached with the city of Rocklin in October, the project is now in the clear.

The proposed site is across the street from Rocklin’s Sierra Crossing Commerical Center, near the Sierra College Boulevard exit from Interstate 80.

One of the conditions of the new agreement is that Costco must draw up a new site plan, but this time without the formerly proposed gas station. The new plan was revised and approved by Loomis’ Town Council in November.


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As a part of the agreement, the gas station will be replaced with additional parking while road improvements will be added such as a northbound right turn lane on Sierra College Boulevard to enter the site.

“My understanding is Costco is prepared to break ground in February, with an anticipated opening in September,” said Sean Rabé, Loomis’ town manager.