Planned repaint cycles and touch-up programmes, so buildings are maintained on schedule rather than rescued after the coating has already failed.
The most expensive repaint is the one that waits until the coating has failed completely. Once a surface is back to bare substrate, the preparation cost multiplies, and on render or timber there may be remediation before any coating can go on at all.
Perth accelerates this. High UV degrades topcoats faster than most of the country, and coastal salt attacks both coating and substrate. West and north elevations routinely need attention years before the sheltered sides of the same building.
A maintenance programme inspects on a cycle, addresses the elevations that are moving first, and keeps the whole building on a predictable budget.