Jumping straight in.
We are living in our caravan full time whilst our new build house is overdue, by a few months!
As far as covenants go, our last home was a 26 years old, had a no caravan covenant but not enforced by the builders as they had sold the last house years ago.
The new house has the same as well as many many more covenants which are enforced to the letter, but the site is still being developed so the developers have an interest and also a neat way to charge more money, for example if I wanted to build a garden summerhouse I have to pay £250 to the developer for permission.
We will probably sell up but only because we want a change of layout, so we are going to bank the money, work on getting the house how we want it, then in 2023 purchase a shiny new caravan which will live in storage but brought home, developers will have gone by then, for fettling!