Two blocks of a troubled Dundalk neighborhood on Yorkway also are targeted for demolition, and county officials are negotiating to buy the buildings at the Villages of Tall Trees in Essex. Those buildings are owned by 38 landlords.
Demolition at Tall Trees is expected to start next year. The site will be converted to open space.
The first round of demolition at Riverdale began in April of last year when the front section of the property was bulldozed.