Sewardstone is a hamlet in the parish of Waltham Abbey, in the Epping Forest District of Essex, England. It is located south of the main built-up area of Waltham Abbey, lying between Epping Forest, Chingford and Enfield. It is 11.6 miles north-northeast of Central London and is in the London commuter belt.

Waltham Abbey is a town and civil parish in the Epping Forest District of Essex, within the metropolitan and urban area of London, England, 13.5 miles (21.7 km) north-east of Charing Cross. It lies on the Greenwich Meridian, between the River Lea in the west and Epping Forest in the east, with large sections forming part of the Metropolitan Green Belt.