Signs of Harvard Square’s third Starbucks have been obvious for a couple of weeks at the former Alpha Omega Jewelers space, formally known as 1380 Massachusetts Ave. — listed as the site of a Pinkberry’s frozen yogurt shop. (Photo: Marc Levy)

Now that there is physical evidence of the two-story Starbucks coming to Harvard Square — the other shoe dropping from September, when the lease of the former Alpha Omega Jewelers space was reported — frozen yogurt fans might reasonably be wondering: Wasn’t that Pinkberry’s space?

It’s a reasonable question, considering the address in the brick plaza by the T stop and Out of Town News stand, 1380 Massachusetts Ave., is listed as Pinkberry by the Harvard Square Business Association’s harvardsquare.com (which doesn’t list Starbucks at all) and by Pinkberry’s own website.

The answer is that both chains are coming to the space, as neighbors: Harvard Square is getting its third Starbucks, and Cambridge is getting its first Pinkberry, albeit about a year later than expected. The tentative opening for Pinkberry is April 8, according to publicist Chris Haynes, likely accompanied by an “opening event or party” at a nearby restaurant.

The Starbucks’ opening will follow by mid-May, spokeswoman Stacey Krum said last week. In the meantime, a team is out finding reclaimed materials from around the region for use in the design. Old barn wood “will be a key feature of the design,” she said, and, like all new Starbucks stores, it will be built to win LEED environmental certification.

On the ground floor, “the idea is people coming in to grab coffee. The second floor will have lots of seating,” including a community table, Krum said.

The local Pinkberry franchising team, led by Cambridge resident Anderson “Trippe” Lonian III, was working on a detailed press release late last week, Haynes said. In late 2009, Lonian said a follow-up site at the CambridgeSide Galleria was likely.

Cambridge-based BerryLine has stores nearby in Harvard and Porter squares and in the Fenway.