Buying house - extensions etc Information, help and advice on many architecture, self build and design problems and issues

[paulfoel]

Got no idea whats even possible?

Where do I start? Who do I ask what can be done even?

In terms of cost/time etc how much, for instance, for single storey extension?

[Mr White]

In terms of cost/time etc how much, for instance, for single storey extension?

Ask the local council what they will allow, pay an architect to draw what it is you want, then pay a builder to cost it all for you.