The name of this pub, The Flask Tavern, derives from the 18th century, when Hampstead was popular for its supply of clean drinking water. This pub, which was formerly known as the Thatched House, bottled this water and sold it for threepence a flask. There are two bars, a dining room and a conservatory. The bar serves a range of Young's beer. They can cater for private parties of up to 50 people.