Guide

How iQHOME works

From address or map pin to a plain-English property hazard check using official council mapping in eight supported NZ cities.

Three steps

Address to report in seconds

  1. Select your city and enter the address or drop a pin. Choose Auckland, Wellington, Christchurch, Hamilton, Tauranga, Rotorua, Dunedin, or Queenstown Lakes, then type a full address, use your location at an open home, or mark a section on the hazard map.
  2. We map the location. iQHOME geocodes the address and queries the official hazard layers published for that city at your pin.
  3. Read a clear report. Each layer is summarised in plain English, including whether a hazard is at the pin or nearby, with an interactive map you can toggle layer by layer.
Data sources

Official council hazard layers

Layer coverage differs by city. Every report checks only the hazard datasets the relevant council publishes. See the full list on the homepage under What iQHOME checks for you and Data you can trust.

Auckland reports draw on Auckland Council open GIS, including flood plains, overland flow paths, flood prone areas, flood hazard areas, coastal storm inundation, coastal erosion and instability (ASCIE), tsunami evacuation zones, shallow landslide susceptibility, large-scale landslide susceptibility, and liquefaction vulnerability.

Wellington reports use Wellington City Council and Greater Wellington Regional Council layers, including regional flood exposure, storm surge, tsunami evacuation zones, liquefaction, shallow landslide susceptibility, rural wildfire hazard, earthquake groundshaking potential, and earthquake-induced slope failure potential.

Christchurch reports use Christchurch City Council open GIS, including river and stormwater flood, coastal inundation, tsunami evacuation zones, tsunami inundation, liquefaction vulnerability, and slope and rockfall hazard.

Hamilton reports use Hamilton City Council Floodviewer (flood hazard, extents, overland flow) plus Waikato Regional Council data (regional river flood and earthquake ground shaking).

Tauranga reports use Tauranga City Council and Bay of Plenty Regional Council layers, including rainfall flood, flood hazard plan area, harbour inundation, tsunami evacuation zone, liquefaction vulnerability, and slope hazard zones.

Rotorua reports use Rotorua Lakes Council and Bay of Plenty Regional Council layers, including stormwater flood, Utuhina river flood, lake flood levels, tsunami evacuation zone, liquefaction vulnerability, and landslide susceptibility.

iQHOME does not invent hazard scores. It interprets council mapping at your property location and explains the result in buyer-friendly language.

Pin accuracy

At the pin vs nearby

Council polygons do not always align perfectly with a house footprint. iQHOME reports whether a hazard intersects your pin (on the property) or appears close by, so you can judge relevance before making an offer.

For bare land, new subdivisions, or properties without a street number, use the explore map to place the pin on the section itself.

What you get

Report contents

  • Plain-English summary for each hazard layer checked in your city
  • Interactive map with hazard overlays and your property pin
  • Shareable report link for partners, agents, or your lawyer
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