Well, what would you expect in 15-time PGA Tour-winner Fred Couples' backyard? The Montecito house he just listed at $12.5 million has a putting green that might make your front lawn look anemic. The 11,000-square-foot, two-story Monterey Colonial was built in 1939 and sits on 5 acres with sweeping ocean and mountain views. The main house has nine bedrooms and 7 1/2 bathrooms. There is also a 2,300-square-foot guesthouse with three bedrooms and two baths and a full kitchen. The house has an arched front entry and hardwood floors throughout. There is a formal dining room with a beamed ceiling, and the master bedroom suite has a sitting area and office space. There is a formal study with French doors. The property also has a tennis court, rose garden and pool. Couples, 49, has relocated to the desert, near good golfing. His career high came in 1992 when he won three major events, including the Masters Tournament, for earnings of more than $1.3 million. He was named PGA Tour player of the year for 1991 and 1992. Sharon R. Fisher and Vickie G. Craig of Village Properties, Montecito, share the listing with Dan Encell of Prudential California Realty, Montecito.