Minor material amendments

Minor material amendments are applications that seek approval for changes to a previously approved scheme. The purpose of the application is to determine if the proposed changes are minor or not. If it is decided that the changes are not minor then the application will be refused. To be considered as minor the proposed changes should not be very different from approved plans but can include small changes to a building (scale, height or footprint) that do not alter its style or total area. Minor material amendments do not usually include:

  • new windows, openings or enlargements which would result in an unacceptable loss of privacy to neighbours
  • a change to external materials which would harm the appearance or quality of a development
  • a change to the external look of a development which would look significantly different to approved plans
  • a change which would lead to a big increase in traffic or parking

If you are in any doubt about where a proposed change is likely to be minor material or not then, to avoid delays, you should consider applying for a revised full application.

How to apply

Currently, all minor material amendment requests need to be submitted in writing using the existing section 73 procedure and form (Application for removal or variation of a condition following grant of planning permission), which is available on the Planning Portal

This procedure can only be used when the planning permission has a condition listing the approved plans.  If there are no conditions you will need to make a new planning application or apply for a non-material amendment to add conditions to approved plans.

When sending us an application to change an approved scheme it is important that you make this clear within the description.  For example:

Example 1 – variation of conditions
“Variation of condition 3 of planning permission 10/P/1234/F (erection of retail unit off St Marks Road) to allow the retail unit to open until 11pm Monday to Friday instead of 10pm”

Example 2 – minor material amendment
“Minor material amendment of planning permission 10/P/1234/F (erection of retail unit off St Marks Road) to provide three additional parking spaces to the rear of the three retail units (northern boundary)”

Example 3 – revised new application
“Revised scheme for the erection of retail unit off St Marks Road to provide three additional parking spaces to the rear of the three retail units (northern boundary) making a total of eight parking spaces (previously approved application 10/P/1234/F)​”


Consultation is proportionate and will be about issues raised by the change. Where the original application was subject to environmental impact assessment we will normally do a full re-consultation. When considering the application we focus our attention on the change and any planning considerations that have changed since the original approval. We normally make a decision within 8 weeks (13 weeks for major applications or 16 weeks where environmental impact assessment is needed).​

Approved applications will result in a new permission. Relevant conditions from the original permission will be added along with any new conditions needed. The new permission will still expire at the same time as the original permission and the decision notice will include a condition with this date on it.

If your application is refused you can appeal. This must take place within 12 weeks if the application is about a householder planning permission, or within six months in all other cases.