Caravan parking

We will be hiring a Caravan for Glasonbury this year but we will need to park it on our road for the afternoon/evening before we set off the next morning.

We live on Trinity Road which is outer zone parking - Will I need any special permit for the caravan and is there a size limit for such vehicles. We do have a drive but not sure if it will fit in the space..

Any suggestions or help would be much appreciated.