Winchmore Hill is a suburb and electoral ward in the Borough of Enfield, North London, in the N21 postal district. With the Winchmore Hill conservation area as a focal point, the district is bounded on the east by Green Lanes, Barrowell Green, Firs Lane and Fords Grove, and on the north-west by Grovelands Park; in the south it extends to part of Aldermans Hill, and in the north to Vicars Moor Lane and Houndsden Road. Winchmore Hill is 8.9 miles (14.3 km) north north-east of Charing Cross.

Green Lanes is a main road in North London which forms part of the A105 road. Covering a distance of 6.3 miles (10.1 km) between Newington Green and Winchmore Hill, it is one of the longest streets in the capital, passing through the N16, N4, N8, N13 and N21 postcode areas.