CoStar Group is expanding its European footprint with its acquisition of a UK-based commercial real estate online marketplace. The publicly-traded commercial real estate data giant announced Friday that it had acquired startup Realla for an undisclosed sum. “When combined with the CoStar information solution it is expected to offer the best of tools for marketing properties, valuations and facilitating transactions,” Andrew Florance, CoStar’s CEO, said in a statement. Realla is a two-year-old startup currently holds ... [more]