WINDOW S AND DOORS IN EXISTING BUILD ING S
Exemption (ae) of Schedule 1
A building consent is not required for the following building work:
(ae) the installation, replacement, or removal in any existing building of a window (including a roof window)
or an exterior doorway if—
(i) compliance with the provisions of the building code relating to structural stability is not reduced; and
(ii) in the case of replacement, the window or doorway being replaced satisfied the provisions of the building
code for durability.