Location of DB in old house

[ACEsterhuizen]

6.6.1.6

Any point of a distribution board that has to be reached during
normal operation shall not exceed a height of 2,2 m above floor (or walking)
level.

However, the board may be mounted higher if it can be disconnected
from the supply by a switch-disconnector that is less than 2,2 m above floor
level. (See also 5.2.8(b)).

Unless a residential distribution board is housed in
an enclosure and direct access cannot be obtained by an infant, no part of
an indoor distribution board shall be less than 1,2 m above the floor level
and no part of an outdoor distribution board shall be less than 0,2 m
above the ground level.

Is it 2.3 m from ANY POINT THAT HAS TO BE REACHED OF THE DB to ground walking level?

If it is outside the 2.2m then install a "switch disconnector". If it is lower than 1.2m then put it in an "enclosure" that cannot be accessed by an infant..

The "Switch Disconnector" does have to be in the same room. It can feed from the meter DB.

3.36
enclosure
part that provides protection of equipment against certain external
influences and, in any direction, protection against direct contact.

3.79.2
switch-disconnector
switch that, in the open position, satisfies the isolating requirements
specified for a disconnector
NOTE A switch-disconnector was known as an "on-load isolator".

5.2.8 Positioning and accessibility of electrical equipment

b) it is readily accessible for installation, replacement, operation, testing,
inspection, maintenance and repair (see 6.6.1.9 and 6.9.4 for the
main switch). All parts of the installation shall be accessible without
the need to enter any adjoining premises (for example, in an
apartment building) * NOTE Common areas (such as passages and entrance halls) are not regarded as
adjoining areas.