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City tree data in Auckland: the Notable Trees Overlay layers

What Auckland Council publishes about trees in its open data hub: the Notable Trees Overlay with 3,600 points and the Notable Group of Trees Overlay with 229 polygons on October 10, 2026, their fields, the most frequent tree names, and the Creative Commons licence the records name.

Checked against the sources at the bottom of this page on October 10, 2026. Rules, fees and pay change: the source has the last word.

This page describes public datasets as their publisher lists them. It reports the record descriptions, field lists and counts as read on October 10, 2026, and it does not interpret the numbers. The family overview is on the guide to city open tree data. These two layers are planning overlays, not a tree-by-tree inventory of every council tree. For a layer that does list council trees one by one, see the Wellington WCC Trees layer.

What the datasets are

Both records sit in the Auckland Council open data hub, are published by the council's Plans and Places team and are feature services on the council's account. Each is titled for the Auckland Unitary Plan as of July 2026. The description of both says they identify notable trees under the policy framework in D13 of the Plan and in its Schedule 10. The Notable Trees Overlay record was created on April 12, 2022 and last modified on October 9, 2026. The Notable Group of Trees Overlay record was created on April 4, 2022 and last modified on October 9, 2026. Both map servers return up to 2,000 features per request.

Notable Trees Overlay

This is a point layer. A count query returned 3,600 points. It lists 9 fields: a type, a subtype, a schedule reference, a name, a validation state, a version status, a document link and system identifiers. The type field is a coded value described as position verification: 2,945 rows carry code 1 and 655 carry code 2, which the layer's value list labels as a confirmed position and an unconfirmed position of the tree. All 3,600 rows carry the version status Operative. The most frequent values in the name field were Pohutukawa with 718 rows, English Oak with 197, Norfolk Island Pine with 189, Totara with 163, Puriri with 155 and Kauri with 142, out of 641 distinct names. These are row counts in the layer, not a statement about how many notable trees stand in the region.

Notable Group of Trees Overlay

This is a polygon layer. A count query returned 229 polygons. It lists 11 fields, including a subtype, a schedule reference, a name, a workflow identifier, a validation state, a version status, a type and the polygon area and length. The type and subtype fields were empty on every row. The schedule reference field held 221 distinct values across the 229 polygons, so most groups have a schedule entry of their own.

Licence

The description text of both records says the datasets are provided by Auckland Council as a public service and may be used for personal and business purposes under the Creative Commons Attribution 4.0 International licence, and the records' licence field reads CC-BY-4.0. The same text says the council does not permit copying or republishing a substantial amount of the information from the hub site without its prior written consent, that the information is illustrative and indicative only, and that it may not be used for the purposes of any legal disputes. The licence page the record links to returned an HTTP 406 Not Acceptable error on October 10, 2026.

Sources