UK PlanIt is a national aggregator for current and historical planning information.
You can use it to search for applications and navigate around all the relevant regions and planning authorities.
Currently 428 planning authorities out of a possible 433 (98%) are available. There are details on 15185370 applications and of these 87% can be located on a map.
You can select from this list of authorities with planning data:
The 50 most recent applications on this website
( 10 Aug 2020
)
Show as table