We recently got an email from a reader asking about the weird vacancy on the corner of 40th and Chestnut Sts., across the street from Distrito.

Thar she blows

For those of you unfamiliar with that corner, the Hub is the prominent building anyone would notice right away. It was constructed almost five years ago on the northeast corner, replacing some low-rise commercial buildings with a ten-story mixed-use building with market-rate apartment rentals and high-end retail tenants like Distrito and Jean Madeline/Aveda Institute. The building was designed by Piatt Associates and probably splits the critics in the architectural community with its unique post-modern design. It was built by Teres Holdings LLC, through a long-term land lease with Penn- similar deals were struck with the Hanover Company, which…