A one-alarm house fire in Cupertino early Monday morning caused an estimated $75,000 in damage, a Santa Clara County fire spokeswoman said Tuesday. The blaze caused damage estimated at $50,000 to the property and $25,000 to contents, fire spokeswoman Stephanie Stuehler said. Firefighters had responded to a report of fire at 12:06 a.m. Monday in the 19000 block of Meiggs Lane, Stuehler said. The blaze started in the side yard of the home and spread into the garage.