only if you're a EU or Commonwealth citizen Tatty
From the Electoral Commission website
http://www.electoralcommission.org.uk/
To vote in a local government election a person must be registered to vote and also be one of the following:
a British citizen living in the UK
a qualifying Commonwealth citizen living in the UK
a citizen of the Republic of Ireland living in the UK
a European Union citizen living in the UK
someone registered to vote as a Crown Servant
someone registered to vote as a service voter
To vote in a UK general election a person must be registered to vote and also:
be 18 years of age or over on polling day
be a British citizen, a qualifying Commonwealth citizen or a citizen of the Republic of Ireland
not be subject to any legal incapacity to vote
Additionally, the following cannot vote in a UK general election:
members of the House of Lords (although they can vote at elections to local authorities, devolved legislatures and the European Parliament)
EU citizens resident in the UK (although they can vote at elections to local authorities, devolved legislatures and the European Parliament)
anyone other than British, Irish and qualifying Commonwealth citizens
convicted persons detained in pursuance of their sentences (though remand prisoners, unconvicted prisoners and civil prisoners can vote if they are on the electoral register)
anyone found guilty within the previous five years of corrupt or illegal practices in connection with an election