I’ve taken my cue from an erstwhile neighbour – Alfred Hitchcock was born just up the road in Leytonstone – and I’ve moved to the rear window. I’m in search of the colour purple. But instead of the lilac that coyly shows its first blush this time of year through the satin-white of the magnolia tree and the billowing chartreuse of the willow, I’m getting a Phoenician purple that would have turned Queen Elizabeth I, who banned the royal colour from her court, apoplectic.

In addition to offering customized private tours, many London Blue Badge Tourist Guides also conduct regular walking tours and virtual tours for groups. Joining a group tour can be a fun and affordable way to take in the sights. For locals, a walk with a knowledgeable and passionate Blue Badge Tourist Guide can reveal fun facts and hidden gems you may not have been aware of.