‘Repairs to boundary fence’ suggest maintenance to me. This would be paid for out of the Administrative Fund.
Section 79(1)(a) of the Act states the Admin Fund is to be used “(a) to maintain in good condition on a day-to-day basis the common property and any personal property vested in the owners corporation, and”
Therefore, if this is the case, I would conclude the Strata Committee can approve the works.
If the works were ‘to repair or replace’ then it must be funded from the CWF. Section 79(2)(e) states “to replace or repair the common property,”. Then it should have been in the budget. If not, an EGM may be required to approve the expenditure, and as such, the SC not be able to approve the expenditure.
Having said that, they may have been given delegated approval to expend a limited amount at an AGM. Size of repair then comes into play.