North of Finch Avenue is Brimley Woods (Macklin's Bush), a small forest patch and now city park of what the area once looked like.

The corner of Brimley Road and Sheppard Avenue marks the central location around which the community of Agincourt was formed during the mid-19th century.

An $11 million overpass and partial interchange of the freeway was built and opened on October 18, 1987 over the objections of many area residents on concerns over increased traffic volume.

[8] After a few months of widely reported public pressure, Scarborough City Council voted February 18, 1988 to open the overpass to general traffic.

The old route of 128 Brimley North, which originally ran from Scarborough Centre to Steeles through McCowan Road and Sheppard Avenue, had started when the RT opened in 1985 and merged with the 21 in 1999.

[12] In February 2008 the TTC made a motion that the current study should include the addition of a station where the existing line crosses Brimley Road.