We're toying with the idea of a garden annexe for my Dad, fit & well, recently widowed. He'd keep a small retirement type flat in his home town (200 miles from us).
We have a big garden, but the way the house is situated isn't suitable for an extension.
Annexe would have bathroom and kitchenette. I've seen plenty around our area so I'm assuming planning is not a huge issue (but will be needed).
We couldn't afford it without increasing our mortgage. Dad could relatively easy and has been thinking of getting a small flat in our area, so this would be an alternative.
My idea would be that he would loan us the money upfront (and get that documented) and we would pay him back gradually, whilst charging him his share of utilities & food etc.
He would then divide his time between his home town and here.
Any advice or pitfalls to watch out for?