can you put a window in a existing wall that does not have one in or do you need planning permission?

You will need planning permission as you are changing the look and structure of the building. You would need someone to make sure that the window would not be causing any structure weakness.

Also the window once fitted must come up to building control and guideline's.

It won't be a full planning application but they will have to be notified all the same!

You won't need full planning permission involving submitting plans etc but its a good idea to mention what you want to do to the local planning dept. We did this, and just got a leaflet from them, and were told to go ahead. And the difference the window has made is wonderful - enjoy!

They are all wrong, as long as you are not extending the square footage of your home in any direction, and are not interfering with the homes ''plot'' in any way, you do not need permission!! I dont know why people who know nothing about what you are asking, even make such comments...Just be sure you know what you are doing when you go tearing into a wall and be sure that its not located in a ''load bearing'' area fo any kind, and if so be sure to install an adequate header above the window to carry the weight of whatever is above it.

Depends where you live on local building and planning control example if buildin under scots regs you can build up to the boundary of your property if solid but if glassed needs to be min of 1metre from boundary check with local building contrl officer

You will need planning permission.

Tim V correct but you need a header [lintel] to take weight off window. If new window overlooks on neighbour's they might take you to court though.

Surely the First question everybody should have asked is WHERE do you live ??

Different countries will have different regulations so you cannot generalise

probably not full pp but you will need to make sure it conforms to building regs

info and advice starts at

http://www.planningportal.gov.uk/england/public/

that depends on local regulations. where I live it would not be required