A few hours later, he and the dog stood across the street, staring at the smoldering wooden structure that housed some 80 recovering drug addicts and former homeless people, many of whom complained that they had not heard alarms, felt sprinklers or found fire extinguishers as they fled the substandard living conditions. In 2010, Oakland allowed the owner of the 40-unit building to convert the structure into transitional housing for recovering drug addicts, people struggling with homelessness and others, records show. [...] it has been the subject of several building department citations and investigations. City fire officials have been criticized for failing to inspect the Ghost Ship warehouse and the mayor conceded that city agencies need to improve communications after records showed police responding to a number of complaints there in the months before the Dec.