11. Duration of the perpetuity period under the Perpetuities and Accumulations Act 1964.

Where the Perpetuities and Accumulations Act 1964 applies1, it provides its own rules as to the duration of the perpetuity period. In certain situations the period is a fixed number of years2, but otherwise it is determined by reference to the duration of a life or lives in being stipulated by the Act3.

Except for a disposition4 which purports to confer an option to acquire for valuable consideration any interest in land5, or the exercise of a special power of appointment6, where the instrument by which any disposition is made so provides, the perpetuity period applicable to the disposition under