After more than a decade of business, the Prosser Starbucks got a makeover and some new equipment to create drinks not previously available to customers.

The nine-week, $342,000 makeover started in the middle of the summer and included new interior walls, paint and fixtures at the coffeeshop at 10 Merlot Drive.

The Prosser Starbucks closed for a week during renovations, then remained opened to drive-thru patrons only for an additional eight weeks.

When the lobby re-opened in late August, customers were treated to a fresh design and open floor plan. Improvements included eliminating the drop ceiling, redoing the floors, moving merchandise shelving and lowering the purchasing counter to enhance communication between the baristas and customers.

There were no changes made to the bathroom or backroom where inventory is kept.

The store also added a Nitro Cold Brew machine, which is fairly unique in Eastern Washington. Nitro is cold coffee on tap. It’s infused with nitrogen bubbles that give the coffee a frothy, foamy texture.

Baristas spent the last week of August training to use the nitro machine and customers were able to start buying cold brew nitrogen-infused coffee over Labor Day weekend.

In 2016, Nitro Cold Brew was available at 14 stores in Seattle and a handful of other stores in Oregon and California. Nitro Cold Brew is now also available at select stores in the Tri-Cities and Yakima, along with Prosser.

GPD Group Professionals of Seattle was the contractor for the project.

The Prosser Starbucks building is owned by Gap Road Properties LLC, which is operated by Tom Denlea.

Gap Road Properties is also reviewing plans for a three-story, mixed-occupancy building in Prosser, valued at $3.5 million. The 31,574-square-foot plans are in the initial stages and no exact location or construction date has been disclosed.