Garfield Heights- St. Timothy Church is remaking itself - again. The Catholic parish close to the bor der of Cleveland has recast its mission several times since it was founded in the 1920s. It originally served a popu lation with Old World roots. It ad justed to urban sprawl, white flight and economic shifts over the decades and now faces a new challenge - serv ing an aging population. The church converted a convent into assisted living for senior citizens 18 years ago to help elderly who need some care but not the full service of a nursing home. Today, St. Timothy is recycling parts of its property for use by other seniors. The church is build ing 35 apartments for seniors next to the rectory and converting parts of the rectory into meeting and lounge areas for the new tenants.