These are all on the same property but first house on it was nearing 70 years old (1940s) when we bought it. Our elderly neighbour said it used to have a pool in the front yard and be a home-based brothel when it was first built. It was a brick veneer single storey 3 bedroom place, great first home. We renovated that house with a kitchen, decking/patio, walls reconfiguration, room extension and landscaping etc. Out back we built a separate dwelling (granny flat or unit you'd call it) about 8 years ago for my home office; has a living room, office, bathroom, bedroom and all the plumbing etc to put in an open plan kitchen if we want anytime. Just 3 years or so ago we knocked down the old main house (was well overdue, thin windows, stumps on their way out, terrible heating costs, low grade materials etc) and built a new two storey house.
Place has been good to us, in 15+ years we've quadrupled the value.