Welcome Dominic,
That plant is Philodendron bipinnatifidum - also known as Philodendron selloum.
A common Philo, but nevertheless spectacular in its look, ease of growth, and hardiness. A real winner to lend that tropical look, if you have the space and want to feel like a master gardener with the inevitable success you will have.
Cut a trunk off and drop it where you want it to grow. Spray it with some water occasionally until it gets going - and enjoy.