Hello, I am Keith, one of the experts on Just Answer, and pleased to be able to help you with your question.
Yes, you are. Here is the advice from Zoopla:
'Properties anywhere in the world are considered too. So, if you own a 30% share of a £300,000 ski chalet in Bulgaria and are buying your first home in the UK, you’ll be stung with the extra tax.'
I am so sorry to have to rain on your parade.