A disused British naval base in Simon's Town, South Africa, was the backdrop for the scenes that take place at the Royal Military Police compound in Aden.
The Last Post was filmed, entirely, in and around Cape Town and Stellenbosch, South Africa.
The desert scenes in The Last Post were filmed in the Karoo Desert near Laingsburg, South Africa. Laingsburg is a town about 3 hours east of Cape Town
According to Margery Bone, one of the executive producers of The Last Post, the series is partly about marriage in the sixties in addition to the notion of being married to an institution like the British Army.
Miranda Bowen, the director of the second half of The Last Post, used David Lean's Lawrence of Arabia and the photography of Todd Hido as inspiration for her work on the series.