Can I Keep My Garage During a Knock Down Rebuild?

Many homeowners want to retain a garage or shed during a knock down rebuild — either to save money, use for storage during construction, or because it's in good condition. Here's how to assess whether it's possible.

Detached Garage or Shed

A detached garage or shed can often be retained if:

• It's in good structural condition
• It doesn't conflict with the new home's footprint or setback requirements
• It complies with current building codes
• It can serve a useful purpose (storage, workshop, accommodation during construction)

Attached or Integrated Garage

An attached or integrated garage is typically demolished with the house, as it shares walls, foundations, or roof structures with the main building. Retaining it would require complex structural separation that's rarely cost-effective.

When Keeping a Garage Makes Sense

• Storage during construction — a detached garage can store materials or your belongings
• Cost savings — avoiding demolition of a solid structure saves money
• Temporary accommodation — with council approval, a habitable shed could provide temporary living space
• Ongoing use — the garage can serve as a workshop, storage, or additional parking after the build

When Removal Is Better

• The garage is old, damaged, or doesn't comply with current codes
• It conflicts with the new home's design or setback requirements
• It's an integrated part of the house that would be difficult to separate
• It reduces the usable space for the new home

How to Decide

1. Discuss with your builder during the feasibility assessment
2. Get a structural assessment of the garage if you want to keep it
3. Check council requirements — retained structures must comply with current codes
4. Consider the new home's design — will the garage work with the new layout?
5. Compare costs — saving demolition costs vs. designing around an existing structure