Editing Riverdale, Toronto (section)

===Upper Riverdale and Lower Riverdale===
Some Riverdale residents differentiate between "upper" and "lower" Riverdale. "Upper Riverdale" is characterized as the part of the neighbourhood north of Riverdale Ave., and "Lower Riverdale" is the area south of Riverdale Ave. In terms of the quality of the housing supply, homes built in "upper Riverdale" are more likely to be renovated, but "Lower Riverdale" contains more original and classic designs of the late 19th century. There are a number of remarkable century-old homes built on Simpson and Langley Avenues, the latter street named after Toronto's well-known early 20th century architect, and the former featuring the oldest Victorian houses in Riverdale. Of note, Simpson Avenue is home to the original six houses of Riverdale; located at the west end of the street and locally known as the 'Six Sisters.'