I got so involved in writing about the history of San Jose last week that I neglected to make some important points about the planned development in North Bethany, near Portland, that set me off on that rant. Fortunately, some of these points are brought out in an article in the Beaverton Valley Times.
First, planners are projecting that North Bethany will have about 10 homes per acre, which is fairly dense considering that a lot of acres will be devoted to streets, parks, etc. “Net” density — the density of the land actually used for residential — is generally about 25 to 50 percent denser than “gross” density, which means planners are thinking of average lot sizes of 3,000 to 3,400 square feet. Nearby developments built in the 1970s average 6 units per acre, while more recent developments have 7 to 8 units per acre.
