The rendering was done about 3 months ago, a fact we intentionally neglected to pass on to Mum and Dad, so when they arrived they got a real surprise. Thanks to those who knew about it but kept the secret.
Just to allow you to go through the same process, I'll show you the photos which represent Mum and Dad's last memory of the house and then the latest ones.
This is the way our Spanish house used to look:
Now it looks like this: