Octavia Hill was a prominent British social reformer and housing activist born in 1838. She is best known for her work in improving living conditions for the urban poor in London. Hill co-founded the National Trust in 1895, which aimed to preserve historic sites and green spaces for public enjoyment. In her efforts to address housing issues, Hill developed a model of social housing that emphasized the importance of community and personal responsibility. She managed properties that provided affordable housing while promoting tenant welfare, which laid the groundwork for modern social housing policies in the UK.