Formerly a much larger neighbourhood, the neighbourhood of Willowdale now occupies the area to the north. Lansing is now bordered by Yonge Street to the east, Highway 401 to the south, Bathurst Street to the west and Burnett Avenue to the north.
The neighbourhood can even be broken down further with Lansing occupying the northeastern quadrant and Armour Heights the southwest section.
Homes in the neighbourhoods are largely owned and occupied by single families. The many mature pine trees in the neighbourhood and Don River, which effectively separate Armour Heights and Lansing provide a calm to a neighbourhood which is such close proximity to Toronto's Highway 401. Lansing or Willowdale is a very interesting area, because it is filled with two distinct types of households. The first are older couples, usually with adult children living in post-war bungalows. The second are younger, wealthy families living in "rebuilds". The neighbourhood is currently undergoing quite a bit of construction as wealthy families buy the bungalows, tear them down and build 2 million dollar houses.