Good move and good show! Property ownership at the right locations have provided many with above average returns. I owned income property when I worked, but sold it when I retired, because I didn't want to manage anything in my retirement - I just wanted to be free of all 'responsibilities' to travel. Had to even forgo getting a dog. The rental property brought in three times what we paid for the property in rents, then I sold the property for twice what we paid for it.
However, my wife and I socked away 15 to 20% of our income when we worked into retirement investments, and that has also provided us with good income, and it allows me to continue my avocation of travel around the world.
BTW, I know Lindsay Hamilton, the professional singer who lives just outside of London. Met her on one of my cruises, and we've kept in touch ever since. Great singing voice whose done plays in London. You may have seen her.