My immediate thought when I read this was about your dream apartment by the sea...although didn't Don fancy a doer-upper?
I can understand why you wouldn't want the drive to work when you can walk there, living where you are now. I do like the sound of the two apartments though! That's an excellent idea!
We had a lot of fun in our old house and when we lived there I could never imagine moving but really it was something we had to do as we'd outgrown it and it just wasn't practical for us anymore. We had three bedrooms and the smallest, Joe's room, was tiny. There was room for a bed, a small bookcase and a baby sized wardrobe. He couldn't have a full sized one because there was a step up into his room so it wasn't full height, and the ceiling sloped too which made it even more of a challenge. The mind boggles now at the thought of how he would've managed in there now at 17 and 6ft tall
Funnily enough he's the one who always says that he misses the house and has even said that he'd love to buy it should it come up for sale when he's older
Good luck in whatever you decide to do! xxx