Planning Agents' Area

This area of the website has been developed to provide Planning Agents who regularly submit planning applications to Cornwall Council information from the Planning and Sustainable Development Service. If you think anything is missing or have any feedback please email

Current number of working days to validate general and householder planning applications


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The number of days quoted is indicative of when most applications are validated, some applications may be processed earlier or later.

The Planning and Sustainable Development Service offers an optional Validation Checking Service subject to a fee.  We currently receive a high volume of planning applications that do not meet the local and national requirements and our intention is to reduce this amount and help speed up the process for our customers.  Please see the Validation Checking Service page for details including fees and how to access the service.

We are now consulting on the 2018 Local Validation Guide - for details please see the What's New in Planning page.

From 6th April 2018 The Town and Country Planning (General Permitted Development) (England) (Amendment) Order 2018 came into force.

The most notable change for validation is that for new agricultural buildings submitted under a Prior Approval Notification the permitted development size of the building has increased from 465 sq m to upto 1000 sq m; and for extensions under Prior Approval there has been an increase in the cubic content from a maximum of 10% to 20%.

There are also some changes to Class Q Developments.  Information regarding these Class Q changes is to be provided soon, but in the meantime the above link will take you to the 2018 Order should you wish to see what the changes are.

The Buy with Confidence Scheme provides people in Cornwall with a list of local businesses which have given their commitment to trading fairly.  Every business listed has undergone a series of detailed checks by Trading Standards officers before being approved as a member of the scheme to ensure that they operate in a legal, honest and fair way.

You can view all newsletters on the Planning News page.