During the 19th century, a father and son architectural partnership, John Shaw Sr. and John Shaw Jr., drew up designs for semi-detached housing in London. Examples of their work can be seen in Chalk Farm, North London. John Nash, better known for his Regency terraces, built some semi-detached villas either side of the Regent's Canal. These were styled to appear as substantial single detached villas with the entrances to the side. Similarly, the landscape gardener John Claudius Loudon built a pair of semi-detached villas fashioned to appear as a single house in Porchester Terrace in 1825. In his 1838 book "The" "Suburban Gardener and Villa Companion" he gives advice on how to disguise the join between the houses by using false windows.