[1] When delivered, the 800 series sets were painted in the standard Keikyu livery of vermillion red with white window surrounds, but were later repainted into all-over vermillion red with a white bodyside stripe following the introduction of the 2000 series trains.

[1] In November 2016, set 823 was repainted into the original-style livery with white window surrounds.

[4] The cab end of former car DeHa 812-6 is preserved inside the Maruzen Ikebukuro bookshop in Toshima, Tokyo.

Built in November 1979 by Kawasaki Heavy Industries, and originally numbered 812-3, it was renumbered 812-6 in August 1986 following reforming as a six-car unit.

It was withdrawn in December 2015, and moved to the ground floor of the Maruzen Ikebukuro bookshop building in March 2017, while still under construction.