| Colne Valley Construction Update, Autumn 2020 – Spring 2021 | Completed | Colne Valley, Denham | 30/11/2020 | 30/04/2021 |
| Notice of archaeological trial trench works – Upper Boddington | Completed | Boddington, Wormleighton | 04/01/2021 | 30/04/2021 |
| Notice of archaeological excavation works, Edgcote | Completed | Edgcote | 08/02/2021 | 31/08/2021 |
| Notice of early works from Chipping Warden to Wills Pastures | Completed | Chipping Warden, Southam | 05/10/2020 | 31/08/2021 |
| Notice of enabling works update in the Radstone area | Completed | Radstone | 01/02/2021 | 31/08/2021 |
| Notice of ecological woodland planting, south of Radstone | Completed | Radstone | 04/01/2021 | 30/04/2021 |
| Notice of early works from Greatworth to Edgcote | Completed | Edgcote, Greatworth | 07/12/2020 | 23/08/2021 |
| Notice of archaeological excavation works, Greatworth to Edgcote | Completed | Edgcote, Greatworth | 02/11/2020 | 30/06/2021 |
| Notice of utility diversion works, Addison Road | Completed | Steeple Claydon | 05/10/2020 | 31/03/2021 |
| Notice of work at Finmere Bridge, A4421 | Completed | Finmere | 01/02/2021 | 31/07/2021 |
| Notice of early works from Finmere to Greatworth | Completed | Greatworth | 05/10/2020 | 30/08/2021 |
| Notice of preparatory works in Waddesdon ahead of main construction | Completed | Waddesdon | 06/07/2020 | 31/05/2021 |
| Notice of construction activities in Quainton | Completed | Quainton | 03/08/2020 | 31/05/2021 |
| Notice of archaeology and compound set up in Chetwode | Completed | Chetwode | 04/01/2021 | 30/06/2021 |
| Early works notification in the Calvert area | Completed | Calvert | 04/01/2021 | 31/05/2021 |
| Site preparation works at Calvert | Completed | Calvert | 02/11/2020 | 30/04/2021 |
| Notice of public right of way diversion in Wendover, Ellesborough Road South Field | Completed | Wendover | 22/02/2021 | 15/03/2021 |
| Site preparation and construction activities in Small Dean, Wendover | Completed | Small Dean, Wendover | 15/02/2021 | 31/03/2021 |
| Notice of Archaeology works, Nash Lee Road | Completed | Aylesbury | 01/02/2021 | 31/05/2021 |
| Establishment of a works compound at Grove Farm, Wendover | Completed | Wendover | 01/02/2021 | 28/02/2021 |