The Secretary of State for Digital, Culture, Media and Sport also compiles a Schedule of Monuments of National Importance. 17 of these Scheduled Monuments have been designated within this area (as at 1st December 1999). These are as follows:
- Barn and moated site at Grove Farm
- Whelpley Hill Camp
Chalfont St Peter
- Moated site south of Denham Lane
- Moated site north west of Little Pednor Farm
- Medieval undercroft in grounds of Manor House
- Church of St Mary Magdalen, Flaunden
- Bowl Barrow in Lowndes Park
- Cholesbury Camp
- Grims Ditch between Long Croft and Leylands Farm
- Grims Ditch, Lanes End
- Ringwork at Hawridge Court
- Grims Ditch, east of Woodlands Park
- Moated site at Redding Wick
- The Castle, Rook Wood
- Moated site in Chalkdell Wood
- Castle Tower (motte & bailey), Chalk Lane
- Earthwork enclosures, Brays Wood
Like listed buildings, Scheduled Monuments are subject to greater planning controls and any works carried out within the scheduled area require Scheduled Monument Consent. Applications for such consent are made to the Secretary of State.
A number of other monuments within this area are of archaeological significance but are not scheduled.
The Buckinghamshire archaeologists have drawn up a list identifying these sites, which are referred to as Archaeological Notification Sites. When planning applications are received which could affect an Archaeological Notification Site, the Council will seek the advice of the Buckinghamshire archaeologists.