3. Any sum directly attributable to the proceeds of sale of—
(a)any premises or land formerly occupied by the claimant as the home; or
(b)any premises or land which the claimant continues to occupy as the home and which were occupied by the claimant as the home immediately before the compulsory acquisition of those premises or land from the claimant under any statutory provision,
which is to be used for the purchase of other premises or land intended for such occupation within 26 weeks of the date of sale or such longer period as is reasonable in the circumstances to enable the claimant to complete the purchase.