The share of space covered by the laundry room – which is present in the vast majority of homes, irrespective of their size – is 3.7% and varies only to a minor extent with the size of the house. Entry foyers account for 3.4% on the average, kitchens get 11.9% of space in small homes, versus 11.1% in larger ones over 3000 square ft. The family room accounts for just 11% in all size homes, while the living room accounts for nearly 12% in smaller homes and 7.5 in the large one. All of this from the National Association of Home Building in the October 1 SPECIAL STUDY at HOUSINGECONOMICS.COM