Export Terrain CSV for Civil 3D

Bare-earth ground points from the LINZ 1 m LiDAR DEM, in NZTM2000 metres, ready to import into Civil 3D as a TIN surface. Coverage is currently limited to the Auckland region.

1. Centre point

2. Export settings

Radius

Grid spacing

Leave out points with no elevation (recommended for Civil 3D)

Include column titles on row 1 (turn off for a direct Civil 3D import)

7,845 grid points · 100 m radius · 2 m spacing

3. Export

Choose a centre point to preview the export area.

Importing into Civil 3D

Set the drawing coordinate system to NZGD2000 / NZTM2000, units metres.
Import Points using the "ENZ (comma delimited)" format. If you kept the column titles, delete row 1 first or Civil 3D won't match the format.
Create a TIN surface and add the imported point group under Definition → Point Groups.

Indicative use only

This is a bare-earth terrain model (no buildings or vegetation). Its 1 m resolution does not mean survey accuracy. Use it for indicative and preliminary modelling only — not for construction set-out or excavation design. Before any digging, request plans through beforeUdig.

Elevation data: Toitū Te Whenua Land Information New Zealand (LINZ), licensed under CC BY 4.0.