The hardest part of building is not the hammer - it is the handful of big decisions you make before it starts. Each guide below walks one choice end to end, with the rule of thumb, the real trade-offs, and the first step to take this week.
If the work costs more than ~50-60% of a new build, a rebuild usually wins on value; below that, extending protects what you love.
Reworking the existing home vs starting again - the 50-60% rule, hidden renovation costs and PlanSA overlays decide it.
Separate secondary dwelling or attached extension? Compare real costs, rental yield, resale impact and SA rules.
Fixed price and speed on a standard block, or design freedom and a tailored result. Your block usually settles it.
The six factors that matter, green flags vs red flags, and how to compare a shortlist like-for-like.
A grant-ready package, or land plus your own builder for control and choice. Compare total finished cost, not the headline.
The Melbourne version: VIC cost drivers, planning overlays and permits, VBA and DBI, and how to price both paths.
Renovate the existing home or start again in Melbourne - the 50-60% rule, hidden costs, VIC permits and overlays.
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