Last decade, the building owners snapped up a handful of Amazon-occupied buildings on both sides of Lake Washington.

Standing inside her food truck Spice on Curve in Seattle’s South Lake ... Lake Union and Denny Triangle where Amazon’s sprawling headquarters campus is located was hardly bustling.

The company previously allowed employees to work in the office three days a week. Amazon has about 55,000 employees at its Seattle campus and an additional 10,000 in Bellevue and the Eastside. The new ...