It faces the Imperial Palace to the north, Hibiya Park to the east, and Nagatachō to the west.

[11] At different points of time All Nippon Airways and Mitsui Chemicals had their headquarters in the Kasumigaseki Building.

[14] At one time Cantor Fitzgerald had an office in the Toranomon Mitsui Building in Kasumigaseki.

[15] Chiyoda Board of Education [ja] operates public elementary and junior high schools.

[18] The name of the Tokyo Metro station is spelled "霞ケ関", with a large ケ.