Sharpham is an historic estate in the parish of Ashprington, Devon. The Georgian mansion house, known as Sharpham House, overlooks the River Dart and is a Grade I listed building. The house was commenced in about 1770 by the Royal Navy captain Philemon Pownoll (died 1780) to the designs of the architect Sir Robert Taylor (1714–1788). In the opinion of Nikolaus Pevsner it contains "one of the most spectacular and daring later 18th century staircase designs anywhere in England". The park and gardens are Grade II* listed in the National Register of Historic Parks and Gardens.
In the 15th century it was owned by Robert French of Horneford, whose daughter and heiress Amey (or Maude) French married (as his second wife) Sir John Prideaux (fl. 1433) of Adeston in the parish of Holbeton and of Orcharden (alias Orcharton) in the parish of Shilston, near Modbury, Devon. Her daughter and heiress was Joane Prideaux, who married firstly to William Drewe, secondly to Baldwin Acland of Acland, Landkey, Devon, ancestor of the Acland Baronets. Sharpham descended thenceforth in the Drewe family as follows:
The Giles family sold Sharpham to the Yarde family of Bradley in the parish of Kingsteignton.
In 1748 Sharpham was sold by Gilbert Yard to Philip Cockey, who was seemingly more interested in the resale value of the timber in the park than in the house. The sale particulars described the estate as having extensive woodlands, a mansion house and several walled gardens. These are visible on a survey of 1749. A marriage contract for the sum of £200 dated 1749 survives in Plymouth and West Devon Record Office listing as parties: 1: William Cockey of Totnes, brazier; 2: Elizabeth Hannaford of Totnes, spinster; 3: Philip Cockey of Sharpham, gentleman and Benjamin Blackaller of Totnes, mercer. Another document dated 1763 survives in Cornwall Record Office summarised as follows: Parties: (1) William Shepherd and John Bayly both of Plymouth, merchants, to (2) Philip Cockey of Sharpham, Devon, esquire, Richard Dunning of Plymouth, gentleman, Peter Baron of Stoke Damerel, gentleman and Robert Baron of Plymouth, brazier. Bond in £500 To indemnify (2) against cost of lawsuits concerning Presbyterian church in Plymouth. In 1765 Philip Cockey sold Sharpham to Captain Philemon Pownoll, having previously in 1755 offered a lease on the estate.