An Infill or Revitalization project is one that is developed in an area that is designated as a focus of redevelopment efforts by a city or redevelopment agency. Such areas are normally somewhat blighted, have dilapidated buildings that do not conform to health and safety codes or zoning ordinances, high crime, etc. The idea of urban infill is to replace the old uses and buildings with new development or restoration of buildings. Petco Park is an urban infill project, as is Market Square, De Anza, Hotel San Carlos, and St. Regis. The method is to repair or replace the old buildings, drive out the bad uses, and improve public safety. The effort usually requires public investment to get it started and private investment to keep it going.