Frognal's a place in London in the London Borough of Camden between Hampstead and West Hampstead. It's also the name of the major road in the area. History The first reference to Frognal's as a tenement in the fifteenth century, probably on the site of Frognal House. By the seventeenth century it was a small settlement. By the nineteenth century it was joined into London, and infill continued in the twentieth century. Frognal has a diverse architecture, with many architecturally interesting bu… (More on Frognal)