How Much Can an Owner-Builder Save?

Owner-builders can save around 20–40% compared to hiring a registered builder.

For example, the lock-up stage, which might cost $60,000 as an owner-builder, could be $80,000–$90,000 with a builder due to labour costs and management fees.

These savings come from sourcing materials directly and organising trades yourself. However, owner-builders should also budget for extra costs like engineering reports, council fees, and licensed trades for electrical and plumbing work.