The following process works in most cases and should ensure a successful project.

The initial discussion usually at your house where we can discuss what may be possible either by way of a permitted development ( or via the planning process).


After the meeting, you will receive a formal quotation outlining the process in more detail and the costs.

Survey- on survey day we visit and take the data needed to produce a full set of scale drawings of the existing house. This typically takes around 3 hours.


Design Phase – typically within a week of the survey you will receive a set of drawings and visuals of the 1st draft of the proposed house. You can annotate the drawings which will then return to Plans and Planning for further development and further drafts. You are fully involved throughout the design phase and are able to try out any ideas that you are I may have in developing your home.


After we have worked together to design the changes to your home we consider what form of approval is needed from the local planning department. We then make the necessary application on your behalf.


Planning– once we have finalised the layout we decide if the work can be completed within the rules for a permitted development or a planning process.

After planning and design are completed we then prepare detailed Building Regulations drawings and calculations. These will be approved by the Building Inspector and are the drawings the builder will use.

Permitted Development


There are many changes and extensions that can be made to houses under the rules for permitted developments.


We have provided a link to the latest document describing the rules. 


They are quite complex and we usually advise completing the design process before determining whether the proposal needs formal planning consent or can be completed within the rules for a permitted development.


Occasionally we advise a combination of PD and Planning Consent. This is an area that can be confusing at first. We will explain how it affects your particular project.

Planning Application 

When the proposed work falls outside the rules for permitted development then planning permission must be obtained. Planning permission allows for the development of land and existing properties it is usually granted by the local planning authority, which is part of the local council.


A planning application involves the production of scale drawings of the existing property and of the proposed development. It also involves various forms and certificates covering the detail of the work, environmental issues and other matters.


Following submission of the application, there may be modifications required by the planning officer prior to a recommendation being made by the planning officer to the planning committee. At this stage, the application will be rejected, accepted or accepted with planning conditions.

These conditions are very important and must not be breached.