The Royal Horticultural Society says British front gardens are disappearing. So why are people paving over their lawns? When people imagine a classic British front garden, they may first think of a small slice of well-tended grass. Perhaps with a box hedge. But over the past 10 years the number of front gardens with gravel or paving instead of grass has tripled, now making up a quarter of all houses, a survey for the RHS shows. Read the BBC story.