Cleveland Park started out as the site of summer homes for well-to-do people like President Grover Cleveland, who gave the area its name.  The neighborhood has some beautiful, large, detached homes in many different styles, some with wide porches and big driveways.  It also has apartment, condo and coop buildings - many built in the 1940's through 1960's. The median sales price is over $1,100,000.   Its residents tend to have higher incomes.  The local public library is the busiest in the city and it has one of the largest listservs in the country - over 10,000 members. It has a fairly dense strip of shops and restaurants along its commercial area - Connecticut Avenue.  The neighborhood has a Red Line Metro station and a high ridership of residents to get to work.