The M25 Junction 10/A3 Wisley Interchange Development Consent (Amendment) Order 2026
Adjusted speed limit classifications, road lengths, and traffic regulation plans for the M25 Junction 10 and A3 interchange project.
Amends the M25 Junction 10/A3 Wisley Interchange Development Consent Order 2022 to modify speed limit classifications and technical documentation.
It removes specific national speed limit designations for the M25 main carriageway and slip roads from the original order, as these are regulated by separate variable speed limit legislation.
The order also revises the recorded lengths of free-flow slip lanes between the A3 and M25 and updates the certified version of the Speed Limits and Traffic Regulation Plans used for the project.
Arguments For
The Secretary of State asserts that the changes are non-material under paragraph 2 of Schedule 6 to the Planning Act 2008.
The order states that removing certain speed limit rows from the Development Consent Order avoids duplication, as these limits are already prescribed under the M25 Motorway (Junctions 7 to 16) (Variable Speed Limits) Regulations 2012.
The document notes that a specific road entry relating to the A3 Painshill junction is removed because the proposed works to that section are no longer being carried out.
Proponents indicate that the amendments correct technical document references and adjust recorded slip lane distances to match revised traffic regulation plans.
Arguments Against
Legal observers might note that designating a change as 'non-material' bypasses the more rigorous examination process required for material changes under the Planning Act 2008.
Commuters or local authorities might express concern regarding the clarity of speed limit enforcement if local orders are removed in favor of broader national regulations.
Technical stakeholders may find the reduction of specified slip road distances (e.g., from 205m to 39.12m) suggests significant alterations to the physical layout that could impact traffic flow modeling.
Citation and commencement
- This Order may be cited as the M25 Junction 10/A3 Wisley Interchange Development Consent (Amendment) Order 2026 and comes into force on 17th July 2026.
Establishes the official name of the legal instrument and sets the date it becomes legally effective. All provisions within this order apply starting from 17 July 2026.
Amendment of the M25 Junction 10/A3 Wisley Interchange Development Consent Order 2022
- -(1) The M25 Junction 10/A3 Wisley Interchange Development Consent Order 2022 is amended as follows.
(2) In Schedule 3 (classification of roads, etc.) omit the following rows from the table at Part 5 (speed limits)-
| (1) Road name and number | (2) Extent | (3) Speed Limit | |---|---|---| | M25 eastbound | Along the length of the improved M25 eastbound carriageway, for a total distance of 5,580 metres, as shown on Sheets 3, 5, 7 and 9 of the speed limits and traffic regulations plans. | National speed limit (70 miles per hour, as existing limit) | | M25 eastbound on-slip at M25 junction 10 | Along the length of the altered slip road, from its diverge from the M25 junction 10 circulatory carriageway to its merge with the M25 eastbound carriageway, for a total distance of 955 metres, as shown on Sheets 3 and 7 of the speed limits and traffic regulations plans. | National speed limit (70 miles per hour, as existing limit) | | M25 westbound | Along the length of the improved M25 westbound carriageway, for a total distance of 6,050 metres, as shown on Sheets 3, 5, 7 and 9 of the speed limits and traffic regulations plans. | National speed limit (70 miles per hour, as existing limit) | | M25 westbound on-slip at M25 junction 10 | Along the length of the improved slip road, from its diverge from the M25 junction 10 circulatory carriageway to its merge with the M25 westbound carriageway, for a total distance of 1,225 metres, as shown on Sheets 3 and 5 of the speed limits and traffic regulations plans. | National speed limit (70 miles per hour, as existing limit) | | A3 northbound to A245 westbound dedicated slip lane at the A3 Painshill junction | Along the length of the new slip road, from its diverge from the A3 northbound off-slip to its merge with the A245 westbound carriageway, for a total distance of 180 metres, as shown on Sheet 4 of the speed limits and traffic regulations plans. | 40 miles per hour |
(3) In the table at Part 5 of Schedule 3-
- (a) in the row relating to the 'A3 northbound to M25 westbound dedicated free-flow slip lane at M25 junction 10', in column (2) for '205' substitute '39.12'; and
- (b) in the row relating to the 'A3 southbound to M25 eastbound dedicated free-flow slip lane at M25 junction 10', in column (2) for '210' substitute '45.25'.
(4) In Schedule 11 (documents to be certified), in the entry in the table for 'Speed Limits and Traffic Regulation Plans'-
(a) in column (2), for 'TR010030/APP/2.7' substitute 'TR010030/APP/2.8'; and
(b) in column (3), for '3' substitute '4'.
Removes several rows from the existing speed limit regulations for the M25 and A3, effectively shifting the legal basis for these limits to other existing motorway regulations.
It also corrects the recorded distance of two specific free-flow slip lanes, reducing them from over 200 metres to approximately 39 and 45 metres respectively.
Finally, it updates the official document reference numbers for the project's traffic regulation plans to ensure the latest versions are legally certified.
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