HELP NEEDED-Renting our property in the uk/living in france

Happy new year to all,

In April we are taking a leap like most of you on Survive france and coming to live there.We have a property in london which we intend to put up for rental to generate a small springboard income until we find our feet... Has anybody had or has any experience in doing this. Which is the best way to go forwards and what are the taxation implications.Thankyou to all who put digital ink to paper in advance...