Muni planning documents confirm that REI is the mystery incoming tenant for the Mall at Sears, as crews work on renovating the structure this summer.

A demolition permit issued June 7 approves its plans to renovate the core and shell of the 48,000-square-foot space vacated in recent years by a Carrs Safeway store. The space at the mall’s west side has since housed temporary businesses like a Halloween costume store, but has had no permanent tenant to replace it.

KTVA has seen elevation drawings and renderings of the signs slated to be installed; images of them can't be shared because they are copyrighted material. No interior floor plans have yet been submitted to the muni.

Workers have recently begun to replace the grocery store’s old sheetrock facade with the brown-and-orange color scheme favored by other locations of the outfitter, which currently anchors the east end of the Northern Lights Center mall in Spenard.

REI officials haven’t responded to requests to comment Thursday.

The new tenant is a shot in the arm for REI’s new host, which has lost Sears as a tenant. A smaller Carrs Safeway store, as well as a Guitar Center, have been slated to move into the retailer’s former space on the east side of the building.

Janis Harper and Scott Jensen contributed to this story.

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