If you live in a Brockwell Park flat, you already know the little things add up fast: muddy shoes by the door after a wet walk, dust from open windows on a breezy day, the occasional tea spill that seems to appear out of nowhere.

If your carpets on Coldharbour Lane are starting to look a bit tired, you are not alone.

If you trade in Brixton Village, you already know the floor tells a story.