This is my next door neighbours bay tree. Just shows you what a happy bay tree can do in a bay-friendly climate!
Here is a link that might be useful: Baytree
Bay trees are magnificent, and when mature can reach 18 metres or more. Multipy that by 3 and add a bit to get the imperial equivalent in feet!
I'm always intrigued by people wanting to grow these things in an itty-bitty pot on their window sills! Of course, pots will always stunt their growth, but still.....