17065 Camino San Bernardo -- Photo courtesy of Colliers International Group Inc.

17065 Camino San Bernardo -- Photo courtesy of Colliers International Group Inc.

A San Diego buyer recorded as SD BLDG LLC has acquired a Rancho Bernardo office building for $4.2 million, according to brokerage firm Colliers International Group Inc.

The seller of the 19,200-square-foot property, at 17065 Camino San Bernardo, was MIS Limited LLC of San Diego, represented by Colliers’ Marc Posthumus.

Brokers said the two-story property was fully occupied at the time of sale by ProEst, a construction estimating software company; and the Technology Services Industry Association.

According to CoStar Group, the building was constructed on approximately 1.3 acres in 2001. Posthumus said in a Colliers statement that the deal was “one of the few investment sales” in Rancho Bernardo so far this year.