Season 18 aired between 06 Sep 2017 and 01 Nov 2017, 9 episodes.
Episodes
E01
Malvern 2017
06 Sep 2017
E02
Haringey, London, 2017
13 Sep 2017
E03
County Down, 2017
20 Sep 2017
E04
South Hertfordshire, 2017
27 Sep 2017
E05
South East London, 2017
04 Oct 2017
E06
Blackdown Hills, Devon, 2017
11 Oct 2017
E07
Peak District, 2017
18 Oct 2017
E08
East London 2017
25 Oct 2017
E09
Herefordshire, 2017
01 Nov 2017