Normally you would only have to extend the arrangement if you were obliged to remortgage the property to release equity i.e. the equity is greater than the limits given, and you were unable to do so, for whatever reason, this allows you to extend the arrangement by one year in lieu of remortgaging.
Are you sure that your original proposal says that the IVA will be extended by 12 months if there is no equity, or only extended if there is equity but can't realise it ?
What the modification says that where the property is to be excluded due to insufficient equity your arrangement will definitely end at 60 months.
Philip Beck -
www.freeivaadvice.co.uk
Licensed Insolvency Practitioner and IVA specialist