The Golden Flower Chinese restaurant is visible through the kitchen window of Frank's Eton High Street office - but as seen in location work for editions such as Come Into the Garden, Rose (1971), the eaterie is actually found two doors down from Marker's premises on the same side of the street. The Thames production team designed the studio backdrop like this as they felt what actually faced the office was visually uninteresting.
At the start of the second season, Marker moves into new premises in Birmingham which overlook Kane's Timber Yard. Despite the busy sound effects added by the production team to convey the atmosphere of a hectic workplace, the view from his office window regularly depicts the same selection of long-untouched wooden planks, since the scene is a stationary backdrop. By the following series Kane's have been taken over and presumably demolished, as a view of tower blocks has replaced the yard.