Grew up in east San Francisco bay area. The time from 8 years old through high school was in a 4BR, 2.5 BA, 2300 sq ft 2 story house on just under 1/4 acre lot size. Large lot compared to most in the area that were more typically half that size. My sister just sent a link where it went up for sale, $1.6M current asking price. In 1971 my parents bought the house for $35K, back when houses in SF bay area were not so outrageous prices. For comparison, that $35K would be $279K based on just dollar inflation factor.