Amend section 149(6) (which includes provision for a lease determinable on marriage of the lessee to take effect as a lease for 90 years determinable by notice after the lessee’s marriage) as follows.

After “or on the marriage of the lessee,” insert “ or on the formation of a civil partnership between the lessee and another person, ”.

For “after the death or marriage (as the case may be) of the original lessee, or of the survivor of the original lessees,” substitute “ after (as the case may be) the death or marriage of, or the formation of a civil partnership by, the original lessee or the survivor of the original lessees, ”.