Budget realistically — not just for materials and labour, but for energy-saving upgrades.Include:
Insulation for ceilings, walls and floors.
Window upgrades — consider double glazing or low-e glass.
Shading — pergolas, eaves or well-placed trees.
Appliances — energy-efficient lighting, fans and air conditioners.
Tip: Look for rebates, grants or Council programs that support energy-efficient retrofits.