Do you know why there are homes around White Pond while there are none around Walden Pond? Both ponds are owned by the Commonwealth of Massachusetts and are considered "great ponds". This week's Concord Journal features a guest editorial by long time White Pond resident, Joseph Rogers, who did some research about residential development around the pond .A real estate developer from Waltham bought 60 acres of land in 1931 from previous owners. He divided up the land into 618 2500 square foot lots offering them for less than $100 each as "bungalow sites". Today an acre of land in Concord is worth between a half a million and one million dollars.