 'Sandy Warren' later became a valuable source of rabbits for food.Around 1851, the 'Swiss Cottage' (which now serves as the reserve's visitor centre and shop) was built for Captain William Peel.When he died, the estate passed to his mother, and then to his younger brother Arthur Wellesley Peel, MP and Speaker of the House of Commons, who built the current house, originally known as 'Sandy Lodge', in 1870.