Northland
Council information only
Council flood information is linked only: the candidate dataset has conflicting commercial-use licence wording. No overlay here does not mean no flood risk.
Northland council informationNew Zealand flood map
Council flood layers across New Zealand.
No shading does not mean no flood risk. Not live flood warnings.
Mount Albert, Auckland · Search to load
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Dashed circle: 500m search area · Dot: search centre
Regional council directory — coverage & gaps
All 16 regions, plus Rakiura and the Chatham Islands. “Selected overlays” does not mean complete regional coverage. Some official viewers cannot be republished here under their current terms.
Auckland
Selected overlays
Council flood plains, ponding susceptibility and overland flowpaths. Different methods and coverage; not a complete hazard inventory.
Auckland council informationWaikato
Council information only
Official regional flood mapping is linked only. The 1:50,000 candidate is CC BY-ND, not licensed for this adapted overlay.
Waikato council informationBay of Plenty
Council information only
Use council information. The public Flood Hazard Mask is an information index, not flood hazard geometry; no eligible flood overlay is reproduced.
Bay of Plenty council informationGisborne / Tairāwhiti
Selected overlays
Plan classifications for several assessed areas, not one uniform model or districtwide coverage. Preserve the exact category.
Gisborne / Tairāwhiti council informationHawke’s Bay
Historical / legacy only
Historical observed event extents only. The current model service could not be verified working; use council flood information for present/future hazards.
Hawke’s Bay council informationTaranaki
Historical / legacy only
Only the NPDC legacy layer, unchanged since 1998, is reproduced. Newer urban Flood Viewer data require republication consent; neither provides regionwide coverage here.
Taranaki council informationManawatū–Whanganui
Historical / legacy only
Observed 16 February 2004 flooding only. The modelled 200-year source has conflicting rights and is not reproduced.
Manawatū–Whanganui council informationWellington
Council information only
Greater Wellington flood information is linked only; substantial republication requires consent. Absence here is not absence of hazard.
Wellington council informationTasman
Selected overlays
Local adopted flood-depth scenarios and Richmond-only TRMP flowpath linework. Model coverage and assumptions vary; coastal-overtopping scenarios are separately labelled.
Tasman council informationNelson
Council information only
Council river models are linked only. The dataset-specific reuse restriction needs clarification despite the containing web map’s CC licence.
Nelson council informationMarlborough
Selected overlays
Environment Plan flood-hazard classifications, not a stated AEP/depth model or complete catchment coverage.
Marlborough council informationWest Coast
Council information only
Council river models are linked only: commercial reuse requires agreement. Public tiles do not establish republication permission.
West Coast council informationCanterbury
Selected overlays
Locally adopted depth scenarios, including Mason/Waiau. Choose an exact scenario; the service is a patchwork, not uniform regionwide coverage.
Canterbury council informationOtago
Council information only
ORC river/lake flood information is linked only. Dataset-specific LGOIMA access terms do not clearly grant commercial copyright reuse.
Otago council informationSouthland
Selected overlays
Mainland significant-floodplain mapping only; not a probability, depth or pluvial model. Coverage does not extend to Rakiura.
Southland council informationRakiura / Stewart Island
Council information only
Explicit gap: no eligible authoritative river/pluvial flood overlay was found. Mainland Southland data do not cover Rakiura; land-use capability and tsunami maps are not substitutes.
Rakiura / Stewart Island council informationChatham Islands
Council information only
Explicit gap: no eligible river/pluvial flood layer was found. Council emergency information includes tsunami evacuation zones, which are not flood-model substitutes.
Chatham Islands council informationAbout the data, attribution & licences
A guide to mapped hazards, not a property assessment. Check council records and get site-specific advice before making decisions.
Region shortcuts open one example location, not a region-wide search. Search an address or drag the map and select “Search this area” to check a 500m area. Vector features intersecting the circle are shown in full. Depth images cover the enclosing square, not the whole model. Blank areas may be unmodelled or NoData.
Duly filters public services to the search area, rounds vector coordinates for display and reprojects selected depth images. Retrieval time is not the model date. Layers differ in purpose, age, climate assumptions and geographic coverage; they must not be combined into a risk score.
A 100-year ARI event is not a prediction that flooding happens once every 100 years. Historical observations, planning classifications, terrain-derived routes and hydraulic models answer different questions.
Auckland · Flood plains: Auckland Council Healthy Waters and Geospatial; Stormwater Hydraulic Modelling Team. Council terms permit internal and external use, subject to the catchments and hydrology disclaimers. Accuracy and completeness are not warranted. Read source terms
Auckland · Flood prone areas: WSP and Auckland Council. Council permits internal and external use. Metadata says “Creative Commons (refer to Healthy Waters)” without specifying a licence version or variant. Read source terms
Auckland · Overland flow paths: WSP and Auckland Council. Council permits internal and external use. Metadata says “Creative Commons (refer to Healthy Waters)” without specifying a licence version or variant. Read source terms
Gisborne / Tairāwhiti · Gisborne planning flood hazards: Gisborne District Council. Dataset-specific CC BY 4.0; accuracy and completeness not warranted. General website terms also apply: https://www.gdc.govt.nz/terms-and-conditions. Retain exact plan categories and consult council records. Read source terms · Licence
Hawke’s Bay · Hawke’s Bay observed flood extents — historical: Hawke’s Bay Regional Council; CHBDC, HDC, NCC and Wairoa DC. Licensed for reuse under CC BY 4.0. Observations have limited accuracy and must not substitute for a present/future flood model. Read source terms · Licence
Taranaki · New Plymouth legacy flood hazards — 1998: New Plymouth District Council. This legacy dataset is licensed CC BY 4.0; see https://geohub.npdc.govt.nz/pages/termsofuse. The newer Flood Viewer has separate republication restrictions and is not reproduced here. Read source terms · Licence
Manawatū–Whanganui · Horizons observed flooding — 16 February 2004: Horizons Regional Council. Dataset-specific CC BY 4.0. Use with attribution and the source disclaimers; retain the event date and observed character. Read source terms · Licence
Marlborough · Marlborough Environment Plan flood hazards: Marlborough District Council. CC BY 4.0. Retain Marlborough District Council attribution and source classifications; consult the Environment Plan for interpretation. Read source terms · Licence
Tasman · Richmond urban stormwater flowpaths — TRMP 2018: Tasman District Council (TDC). CC BY 4.0; retain Tasman District Council attribution and disclaimers. See https://geohub.tasman.govt.nz/pages/terms-of-use. Read source terms · Licence
Southland · Southland significant floodplains — mainland: Environment Southland. CC BY 4.0. Environment Southland does not warrant currency, completeness or accuracy; obtain specialist advice and retain the source disclaimer. Read source terms · Licence
Tasman · Tasman flood depth — adopted scenarios: Tasman District Council (TDC). Dataset-specific CC BY 4.0; see https://geohub.tasman.govt.nz/pages/terms-of-use. Source rasters are not offered for portal download: contact council for copies/specialist advice. Duly displays bounded images, not a bulk mirror. Read source terms · Licence
Canterbury · Canterbury flood depth — adopted scenarios: Environment Canterbury. Environment Canterbury’s Open Data Portal licenses all data CC BY 4.0 unless specifically stated otherwise; no contrary dataset terms were found. See https://data.ecan.govt.nz/. Retain attribution and source notices; no council endorsement. Read source terms · Licence
These layers are not a complete inventory of flood hazards. They do not determine depth at a building, insurability, development consent or tsunami evacuation requirements. Councils do not endorse this map.