A 24-year-old nanny has become theyoungest Omaze winner in history - no doubt leaving many envious of her incredible good fortune. But as previous successful entrants can attest, an Omaze win may well bring about a whole new set of challenges.

Lauren Keenewas thrilled to learn that she'd won a contemporary five-bedroom house in the Wirral, complete with breathtaking coastal views, a cinema room and a heated outdoor swimming pool. Those who've previously gotten lucky in the property draw know all too well, however, how the dream can all too quickly become a nightmare, from eyewatering hidden costs to dismaying flood risks.