The Portman Estate is a large property management organization located in the heart of London. It covers approximately 110 acres and includes residential, commercial, and retail spaces. The estate is known for its historic buildings and green spaces, contributing to the character of the Marylebone area. Established in the 16th century, the Portman Estate has evolved over the years, adapting to the changing needs of the community. It is managed by the Portman Family, who have played a significant role in its development and maintenance. The estate aims to create a vibrant environment for residents and businesses alike.