in general - this is not a great time in europe.
i would suggest you to first start in israel, gain 1-2 years of experience, then come here when the market is better. if you come here (or anywhere in europe) at the moment, then first of all - without european id - it is not likely you will get hired; second - you will compete many architects and graduate who lost their jobs at the past 3 months.
so - good luck, and take into considerations.
na´amah, london