John Scardeville is identified in the surviving public account as the owner of the Adsdean land shown on the 1840 estate map. No reliable biographical details or dates were located in the sources consulted.

The source gives an estate-ownership link but does not prove that John Scardeville held the manorial lordship.

Research sources:
- Parks & Gardens, 'Adsdean Park - Funtington - Parks & Gardens', citing the 1840 estate map as evidence that Adsdean was then owned by Mr John Scardeville. — https://www.parksandgardens.org/places/adsdean-park