A house in Landmark sustained extensive fire damage early Saturday morning.The Tache Fire Department got the alarm at 12:15 am for a bungalow 2 blocks east of the high school.  They arrived on scene to find the garage in flames with the fire spreading to the house.  The garage was destroyed.  There was fire damage to the living room, kitchen and attic of the home with smoke and water damage to the rest of the structure.  The fire was caused by a heat lamp in the garage that was being used to keep a cat warm.