OK, London it is. Great city!
Don't get me wrong, sharkfur, I am not saying that the cypress plants you have were not hybridized so that they have compact growth and can be grown indoors. Perhaps they were. You might want to go back to the garden center where you purchased these plants, a label in hand, and ask whoever runs that center to tell you about the plant. He/she might even be able to tell you where the plants came from and a link to their website. When you do find out more about the cypress plants you have, do update us on the information you found.
Good luck with your research and good luck with your plants.