Case Study

A protected tree, a knockdown-rebuild, and a permit that still went through.

How TPZ/SRZ mapping kept a significant tree and the build program both on track.

The situation

A boutique builder was planning a knockdown-rebuild on a suburban block with a large, protected eucalypt close to the proposed building line. Council had flagged the tree, and the project could not start without a compliant arboricultural impact report.

The outcome

The permit was approved without a redesign, and the tree remains on site today. Construction proceeded with the agreed protection measures in place.

“The permit was approved on the first submission.”

What we did

✓ Mapped the Tree Protection Zone (TPZ) and Structural Root Zone (SRZ) from on-site measurements
✓ Showed how the design could adjust within the retained footprint without encroaching on the root zone
✓ Recommended fencing, mulching and supervision controls for the construction period
✓ Prepared the report in the council’s required format for the planning submission

A similar problem on your site?

Tell us about the tree, the build, or the decision in front of you.

Illustrative case study altered for client privacy.

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