In 1741, Douglas moved to the opposite side of the square into the vacant King's Head. This house was much larger, with a garden and running water supplied to the basement. Douglas made further improvements, installing a drain and cesspool, extending the water supply, and renovating the roof, chimneys, and staircases. This house was decorated to the highest standards with fine furniture, china, glass, and expensive paintings adorning the walls. She added a restaurant with liveried waiters to serve the guests. As well as paying high prices to enjoy the luxurious surroundings and hand-picked girls of her establishment, her patrons were able to take advantage of condoms manufactured by Jacobs in the Strand, presented in a silk bag and with a hefty markup. For those suffering from syphilis, she supplied Dr. Jean Misaubin's "pillule".