4 Cowley Street
| 4 Cowley Street | |
|---|---|
| General information | |
| Address | 4 Cowley Street |
| Town or city | London |
| Country | United Kingdom |
| Coordinates | 51°29′51″N 0°07′38″W / 51.497363°N 0.12721361°W |
| Construction started | 1904 |
| Completed | 1905 |
| Design and construction | |
| Architect(s) | Horace Field |
4 Cowley Street is a Grade II listed house in Westminster, London SW1. Previously the headquarters of the Social Democratic Party and the Liberal Democrats, it is now a residential building.