For the purposes of sections 30 and 33(1), the value of property conveyed or transferred by an instrument chargeable with duty in accordance with either of those sections shall be determined without regard to -
(a) any power (whether or not contained in the instrument) on the exercise of which the property, or any part of or any interest in, the property, may be revested in the person from whom it was conveyed or transferred or in any person on his or her behalf,
(b) any annuity or other periodic payment reserved out of the property or any part of it, or any life or other interest so reserved, being an interest which is subject to forfeiture, or
(c) any right of residence, support, maintenance, or other right of a similar nature which the property is subject to or charged with, except where such rights are reserved in favour of the transferor or the spouse or civil partner of the transferor and in any such case regard shall be had to such rights only to the extent that their value does
…