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West Coast (Te Tai o Poutini) data via eolas

The West Coast region covers ~33,000 people across West Coast Regional Council (WCRC) and three territorial authorities — Buller, Grey, and Westland. All three TAs share a single common district plan: Te Tai o Poutini Plan (TTPP). eolas serves 24 datasets for the cluster.

If you're doing West Coast property research, mining / extractive consenting, or alpine / coastal hazard work — this is the source.

What's in the catalogue

Source Code Datasets Notes
Te Tai o Poutini Plan (shared) ttpp 12 Combined district plan covering all three TAs
WCRC wcrc 8 Regional planning, hazards, environmental
Buller District (specific) buller 3 Council-specific extras
Westland District (specific) westland 1 Council-specific extra

TTPP (Te Tai o Poutini Plan) datasets

The shared plan layers — apply across Buller + Grey + Westland:

  • ttpp_archaeological_areas
  • ttpp_designations
  • ttpp_district_plan_zones
  • ttpp_fault_avoidance_zone (Alpine Fault + others)
  • ttpp_flood_hazard_severe, ttpp_flood_susceptibility
  • ttpp_heritage_sites_polygon
  • ttpp_outstanding_natural_features, ttpp_outstanding_natural_landscapes
  • ttpp_significant_natural_areas
  • ttpp_sites_significance_maori
  • ttpp_tsunami_hazard_zone

WCRC + council-specific

  • WCRC publishes regional environmental + planning layers (8 datasets)
  • buller_* (3 datasets) — Buller-specific overlays
  • westland_* (1 dataset) — Westland-specific extra

Browse: eolas.fyi/datasets?source=West+Coast+%28Te+Tai+o+Poutini%29.

Refresh schedule

Weekly, Wednesday morning NZ time.

License

All West Coast council data is CC-BY 4.0.

Common patterns

Alpine Fault avoidance

import geopandas as gpd
fault = client.west_coast("ttpp_fault_avoidance_zone", as_sf=True)
print(f"Fault-avoidance polygons: {len(fault)}")
print(f"Total area: {fault.to_crs('EPSG:2193').area.sum() / 1e6:.0f} km²")

District plan zone composition

zones = client.west_coast("ttpp_district_plan_zones", as_sf=True)
print(zones["zone_name"].value_counts().head(10))

Source-specific notes

  • Shared plan, three councils: Te Tai o Poutini Plan is unusual in NZ — most councils each have their own DP. Here Buller, Grey, and Westland operate a single shared plan, simplifying cross-district analysis.
  • Alpine Fault: the entire West Coast sits next to one of NZ's most-active faults — fault-avoidance zones are a major planning constraint.
  • Tsunami exposure: the West Coast has significant tsunami risk from local + distant sources; ttpp_tsunami_hazard_zone covers the exposure.
  • Mining / extractive context: West Coast has significant historical + ongoing coal + gold mining. Some council layers (not yet in eolas) cover mining-related overlays.
  • Limited urban coverage: Greymouth, Westport, Hokitika are small — most of the region is forest + farmland + mining. Layer counts reflect that.

Where to find more