This is the Bank PHB building. Formerly known as IBC Limited, the bank launched its new brand identity on August 25, 2008 following the 100 percent acquisition of IBC by the Management of Bank PHB (PlatinumHabib Bank (Plc) Nigeria). For more information,you may click on this link: http://www.bankphb.com/gambia
According to Wikipedia, "Serrekunda (or Serekunda) is the largest city in The Gambia, lying southwest of Banjul. Its population as of 2006, was 335,733 people. Although Banjul is The Gambia's capital, it is on an island and cannot grow further, making much of the growth in Serrekunda."