Filming was completed earlier this year at Haringey, which featured in the first series of the fly-on-the-wall documentary on council environmental and refuse services.
It will be the focus of the fourth series which has no transmission date but is likely to be screened in late autumn.
And plans for Bristol City Council to be the focus of a fifth series have now progressed with a BBC crew expected to start filming within weeks.
The BBC has already held talks with the council's communications team and staff have been consulted on whether they would like to appear. Glasgow had also been in the frame but rejected interest from the BBC as it was, 'too short notice,' according to a spokesman.
Ian Andrew, communications and PR manager at Salford City Council, which featured in the third series said that despite the 'warts and all' focus of the programme 'it presents an unlikely PR opportunity' for any council that takes part.
'It showed an aspect of the council's work that people don't often get to see. It also shows the dedication of the staff in their jobs,' he added.
Jo Vale, producer of the fourth series, said that she was impressed with the cooperation from Haringey's communications team, particularly considering the spate of recent poor publicity relating to the death of Victoria Climbie.
Vale added that the series will see a return of resident Edmund Trebus, the pensioner who lived in a rubbish filled house and featured in the first series. New characters will include food specialist environmental health officer Dr Yunes Teinaz, described by Yale as, 'a one-man crusade against unfit meat'.
- Edited by Joe Lepper.