The area of the garage = 528 square feet
Let the area of the house be Y square feet
The total area of the house and garage should be less that 3000 square feet.
Therefore, Area of the house + Area of the garage <= 3000 square feet
Y + 528 square feet <= 3000 Square feet
Y <= 3000 Square feet - 528 Square feet
Y <= 2472 Square feet
Therefore, the area of the house should be less than 2472 Square feet.