In Gonzales v. City of Santa Ana (1993) 12 Cal.App.4th 1335, a field survey of the exteriors of the structures resulted in a conclusion that 14 percent of the buildings were dilapidated. The other categories were not tightly defined, and the court found that "substantial percentages of 'fair,' 'old and obsolete,' and even 'dilapidated' buildings are not enough, by themselves, to support such a finding of blight." ( Id. 12 Cal.App.4th at p. 1345.) However, because of documented overcrowding and crime conditions, the court found substantial evidence of blight. (Ibid.)