It is usually possible once the IVA has cleared from your credit files. But there are still pitfalls as many ask if you have ever been in an IVA on the application form. Also some lenders will black list you for ever, some for 6 years after the end of the IVA. Much will depend upon who you apply to.
We have a couple of mortgage experts on forum: Ryan and Shaun. It might be worthwhile chatting to them. Their details can be found under the "Ask a Question" tab (top left) and scrolling down to the Experts Details section.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014