The larger fraction of Newton Leys lies within Milton Keynes and forms a part of Bletchley and Fenny Stratford civil parish.

It is separated from central Bletchley, Water Eaton and the Lakes Estate by the West Coast Main Line.

The remaining fraction of Newton Leys lies within the (former) Aylesbury Vale district and forms a part of the Stoke Hammond civil parish, although the village of Stoke Hammond is situated on the other side of the A4146[1] Newton Leys within Milton Keynes is a brownfield development and within the Buckinghamshire Council area is greenfield.

The full district covers some 104 hectares (260 acres) and comprises development land with housing for up to 1650 homes with employment areas, shops, a school, community facilities, new park, hotel, a care home and leisure facilities built on two former brickworks and farmland.

Jubilee Brooks runs through the centre of the development, which rises north of Drayton Parslow and flows through the settlement towards the West Coast Mainline passing through to the Lakes Estate where it joins with the Water Eaton Brook, eventually flowing into the River Ouzel.

Brick-making has taken place on the Newton Leys site and the surrounding area from the late 19th century, circa 1897.

[12] Parts of the site have a history going back as far as the Iron Age, an archaeological evaluation commissioned by the developer in 2006, found an area of occupation in the floor of a stream valley in the southern part of the site, just west of Willow Lake.