Extensions to time limits for implementing existing planning permissions
Generally, when a planning permission is granted, the development must commence within three years. The intention behind this time limit is to prevent the accumulation of planning permissions which are unimplemented, or ‘land banking’ by developers. It also allows councils to review the development’s suitability in the light of circumstances which may have altered over the three year period.
However, in 2009, the Labour government introduced new powers allowing the application for an extension of the planning permission if it was granted on or before 1 October 2009. This was a response to the recession that followed the 2008 credit crunch, allowing existing permissions to continue until economic conditions recovered.
In 2012, the coalition government extended the time period within which the existing permission must have been granted by one year. This meant that an application could be made to replace an existing planning permission as long as the original permission had been granted before 1 October 2010. This remained restricted to developments that had yet to be implemented.
In November 2013, the government announced that the measure would not be renewed.
The then-Planning Minister Nick Boles said scrapping the temporary measure would “increase the incentive for developers to start on site before permission expires”. The move was criticised by developers but welcomed by opponents of land banking.
Since this decision, developers with an unimplemented planning permission have had to carefully consider their strategy. While they can sometimes begin minimal works so as avoid the permission lapsing and having then to reapply, there can be pre-commencement conditions or the triggering of the community infrastructure levy (CIL) liability or section 106 agreements that could incur costs if works begin.
[edit] Related articles on Designing Buildings
Featured articles and news
We're expanding our collaborative mission by launching DB Intelligence, an exclusive market research advisory panel. Built environment professionals can now get paid to share their expertise on industry trends, products and services.
Panel members receive direct financial incentives for participating in research projects like short surveys, 1-2-1 interviews and focus groups. Register today to shape the future of the construction sector.
Building Safety Wiki Interviews
Chief executive of the British Woodworking Federation.
Planning condition discharge in England and Wales
A brief exoplanation from a building compliance expert, with further links.
Overheating guidance and tools for building designers
Guidance for dealing with element of building fabric control that have increasing importance.
Shading for housing, a design guide
From the Good Homes Alliance and British Blind and Shutter Association.
UK Standard Skills Classification (SSC)
A shared framework for describing skills needs.
Social media ban consultation comes to close
CIOB urges UK Government to consider social media’s role in careers guidance in ban debate.
The latest of eight Skills England apprenticeship units
The addition of battery manufacturing welcomed by ECA with a warning about the risks of fast-tracked apprenticeship units.
Building Control Independent Panel final report
A precis of a key report led by Dame Hackitt with full recommendations and link to the government response.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.




















