Demolitions and Commencement Notice

Any views on whether a commencement notice is required to demolish a house

– planning is granted to demolish house and build new one
– want to start dem’s now , new build later

from SI 496 1997 – notice is required for

(a) the erection of a building,
(b) the material alteration or extension of a building,
and
(c) a material change of use of a building,

now you may think demolition is a pretty material alteration but material alteration
is defined in this SI as

“an alteration (other than a
repair or renewal), where the work, or any part of the work,
carried out by itself would be subject to a requirement of
Part A or B of the Second Schedule to the Building
Regulations;”

So I deduce a commencement notice , by ommision , is not required

any one got any views ?