| Fenton House | |
| Former Names: | Ostend House (early C18) Clock House (later C18) |
| Map Type: | United Kingdom London Camden |
| Building Type: | Merchant's house |
| Architectural Style: | Georgian architecture with many slightly earlier core features |
| Material: | Brick |
| Owner: | National Trust |
| Location: | Hampstead (village) London, United Kingdom |
| Coordinates: | 51.5589°N -0.1797°W |
| Completion Date: | 1693 |
| Floor Count: | 4 |
| Designations: | Grade I listed |
Fenton House is a 17th-century merchant's house in Hampstead in North London which belongs to the National Trust, bequeathed to them in 1952 by Lady Binning, its last owner and resident. It is a detached house with a walled garden, which is large by London standards, and features a sunken garden, an orchard and a kitchen garden. It is located on the western side of Hampstead Grove and to the south of Admiral's Walk with its entrance on Holly Hill.
The interior houses the Benton Fletcher collection of early keyboard instruments, some of which are often played for visitors during operational hours, and collections of paintings (including the collection of Peter Barkworth paintings), Meissen, English and Chinese porcelain, 17th-century needlework pictures and Georgian furniture.
It also has fine portraits of King William IV (when Duke of Clarence) and his mistress Dorothea Jordan, as well as portraits of two of their illegitimate sons, Frederick FitzClarence and Adolphus FitzClarence, and one of William IV's brother George IV.
The brick mansion, with 1693 inscribed on its chimney breast which is consistent with the date of its core and most of its walls, has a 300-year-old orchard, where around 30 varieties of apple trees flourish.
The building has original staircases with twisted balusters. Main rooms have original panelling, corner cupboards and decoratively carved marble fireplaces.