Portland coffeehouse chain and wholesaler Coffee By Design plans to open its new roasting facility and fifth store location Monday in East Bayside following a ribbon-cutting event.

The family-owned business has converted part of a 45,000-square-foot warehouse on Diamond Street into what its owners, married couple Alan Spear and Mary Allen Lindemann, have described as a “playground for coffee geeks.”

Along with the fifth retail location and a larger roasting facility, the building includes a space where people can learn about different coffees, observe the roasting and blending of beans, and sample a variety of locally roasted coffees.

It also will have a barista training center and a showroom for coffee equipment.

The new location, at 1 Diamond St., currently takes up 23,500 square feet, the owners said. About 20,000 is occupied by the roastery, and there is more than 20,000 square feet of empty space for possible future expansions.

The facility will employ up to a dozen people in the roastery and another four to six in the coffeehouse, they said. In all, Coffee By Design employs about 55 people.

The roasting operation has been moved from its former location on Washington Avenue. The existing coffee shop there will remain open and expand.

The ribbon-cutting ceremony is scheduled to take place at 11 a.m. Monday and is expected to draw local dignitaries, including Portland Mayor Michael Brennan and Senate President Justin Alfond, D-Portland, Lindemann said.

The coffeehouse and roastery will remain open for private tours Monday afternoon and will start their first full business day at 6:30 a.m. Tuesday, she said.

Founded as a single coffee shop in 1994, Coffee By Design has become a notable business success story in Portland.

Along with its five shops, the company sells nearly half a million pounds of coffee beans a year through roughly 300 retailers as far away as Las Vegas.

J. Craig Anderson can be contacted at 791-6390 or:canderson@pressherald.com

Twitter: jcraiganderson