404 N. Isabel is now on the market, and can be purchased for a mere $599,000. Of course, it has been completely remodeled since Duke lived there, and he likely would not recognize the place. It was originally a three-bedroom, one-bath home. In 1947 an addition was built that added two more bedrooms and a second bath. It is being listed as a duplex. The listing reads as follows:
“Astonishing craftsman duplex in the heart of Glendale. The front house has been completely remodeled including a new kitchen, restrooms and flooring. The back house is approximately 720 sq ft 2+1. Must come to see. John Wayne's Childhood home. Open house Saturday April 6th and Sunday April 7th 12:00 to 4:00pm.”
The complete listing can be read here: http://www.redfin.com/CA/Glendale/404-N-Isabel-St-91206/home/7159335