Beginning your extension.

About to purchase a property that has planning permission for a double story extension. The permission runs out next December but it says "The development hereby permitted shall be begun within three years of the date
of this permission."

I don't have the funds to complete the whole project straight away so I wanted to know when they say begin, what's the littlest amount of work you can do to show it has begun if that makes sense. Seems a waste of time getting plans drawn up again and all that.

Replies from 14 tradespeople

Get the footing done and you will be perfectly fine

I would recommend trying to complete the shell but i think would get away with concreting the footing building footing and pouring the floor .

Excavation of foundations and filling with concrete should be sufficient
It should say somewhere in the conditions

Contact your local council for that

As long as you can show you have started they should have no problem with can taking a little longer to build the extension dig some of the footings that will be ok

Marking out with wooden steaks in ground for building footprint

The littlest amount is to start ordering material for the work ahead also any works of construction, demolition, digging foundations, laying out or constructing a road and a material change in the use of the land.

You have to get it up to dpc level.

This can be extended if you ring your local council it would cost a couple of hundred pound I believe

If you just dig it and pour the concrete foundation that will be classed as staring it

Bring it up to foundations/dpc hight

Hello,

It might be a good idea to speak to a building company, agree a contract with them with the condition that works are going to start on site a bit later, but still engage them officially on paper.

Thus, you will have a document to show when works were initiated.
We work in a similar way with some clients who need our assistance initially with the planning and supply/choice of materials and fittings and the actual building work begins on site often a few months down the line.

Hope that helps.

To “begin” development and keep the planning permission alive, you only need to carry out a genuine, material start — not complete the whole build.

The smallest works that typically qualify include:
• Digging and pouring the foundations for the extension
• Installing part of the drainage
• Completing any works shown on the approved plans that building control can record

These works must be:
• Real, not token
• Inspected and logged by Building Control
• Consistent with the approved drawings

Once this initial phase is done and recorded, the permission is considered “implemented,” meaning you can complete the extension at a later time without reapplying.

you can start the foundation and get it approved by building control.

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