Portman Estate area remained largely residential, attracting the prosperous middle class who wanted to live near the centre of London. There were also mews for tradesmen and servants. At the southwest corner of the Estate, where Marble Arch now stands, was the Tyburn gallows, London’s principal place of public execution until 1783. Development of the area north of the Marylebone Road around Dorset Square continued after 1815, and to the North West in Lisson Green, workers’ cottages were built from 1820 to 1840. Many of the original Georgian houses north of Portman Square were redeveloped as mansion blocks, which were let on
Tyburn place for execution of London criminals and convicted traitors, including many religious martyrs. It was also known as 'God's Tribunal', in the 18th century. The village was one of two manors of the parish of Marylebone, which was itself named after the stream, "St Marylebone" being a contraction of "St Mary's church by the bourne". Tyburn was recorded in the Domesday Book and stood approximately at the west end of what is now Oxford Street at the junction of two Roman roads. The predecessors of Oxford Street (called Tyburn Road in the mid 1700s) and Edgware Road were roads leading