Sub-regulatory overland flow paths and flood hazard mapping, built on 2024 LiDAR. The detail the National Flood Map doesn't resolve — engineered for resource consent work.
Most New Zealand council flood maps are built on 2016 or older DEMs. Many don't model overland flow paths at all — only big rivers. The new National Flood Map stops at 256 floodplains and explicitly excludes property-level detail.
That's fine for public awareness. It isn't enough for a resource consent, a building consent, or a subdivision application. FloodMap.nz fills the gap — every stream down to 0.4 hectares, mapped nationwide on 2024 LiDAR, at property-level resolution.
25 to 500 hectare catchments. Regional flood planning, district plan work, subdivision-scale overview.
2 to 25 hectare catchments. Subdivision design, consent assessment, SWCoP compliance.
0.4 to 2 hectare catchments. Site-specific flood risk, FFL design, sub-regulatory detail.
Pull site-specific OFPs, depth, and DEM into DXF or KML in 60 seconds.
Engineer Subscription — $299/mo →OFP Quick Check in 60 seconds. Flow paths, catchment area, LiDAR elevation. Bulk packs for portfolio DD.
OFP Quick Check — $19 →Finished floor levels backed by HEC-RAS 2D modelling and 2024 LiDAR, not council best-guess.
Flood Report — $3,500 →The flood layer your GIS team would take a year to build. Annual licence, API access, unlimited users.
Data Licence from $8k/yr →Flow path maps and depth assessments councils accept. Fewer RFIs, faster consents.
Start with a subscription →Property-level flood risk for any NZ address. Bulk API for underwriting (2026 Q4).
Early access list →All prices exclude GST. Property Flood Report ($49 per address, full depth + extent) launches Phase 2 when the HEC-RAS depth layer goes live.
| Tier | Price | Map view | Address PDF | Downloads | HEC-RAS | CPEng sign-off |
|---|---|---|---|---|---|---|
| Free | $0 | Unlimited | — | — | — | — |
| OFP Quick Check | $19 | Unlimited | 1 address | — | — | — |
| Engineer Subscription | $299/mo | Unlimited | Unlimited | KML, DXF, GPKG | — | — |
| Flood Report | $3,500 | — | — | Full package | Yes | Yes |
| Council Licence | from $8k/yr | Unlimited users | — | API + bulk | — | — |
The government National Flood Map and council viewers are public awareness tools. FloodMap.nz is the engineering-grade overlay.
| FloodMap.nz | ESNZ National Viewer | Council GIS | MfE National Flood Map (2027) | |
|---|---|---|---|---|
| Full NZ coverage | Yes | Yes | One region each | Yes |
| Property-level detail | Yes | No | Sometimes | Not committed |
| 2024 LiDAR | Yes | Mixed, mostly pre-2023 | Usually 2016 | Varies |
| Overland flow paths (0.4ha+) | Yes | No | Rare | No |
| Post-earthworks remodelling | Yes | No | No | No |
| CPEng-signed reports | Yes | No | No | No |
Every layer is derived from current LiDAR, processed with open methodology, and aligned with the standards councils use.
No. ESNZ's viewer is a public awareness tool covering 256 major floodplains at street level — explicitly not for property-level risk assessment. FloodMap.nz covers every stream down to 0.4ha catchment, at property-level resolution, on newer LiDAR. Different scale, different purpose.
No. MfE's 2027 product is an aggregator — it stitches together what each council already has. Where councils have detailed models, MfE will surface them; where they don't, MfE won't fill the gap. FloodMap.nz builds a consistent national model from the DEM up.
Our methodology is aligned with TP108, SWCoP v4, and NZS4404. Individual councils make their own call on what data they accept for consent. Our Flood Reports are CPEng-signed and written for council submission.
Phase 1 focuses on rainfall-driven overland flow. Coastal storm surge and sea-level rise are Phase 2 (2026 Q4). For now we recommend the NIWA / Earth Sciences NZ Extreme Coastal Flood Maps for coastal hazard.
Quarterly. Every time LINZ publishes a new LiDAR survey block, the affected region is re-run within 30 days.
Engineer Subscription includes site-specific KML/DXF/GPKG exports. Council Licence includes full regional bulk download and API access. Free tier is view-only.
Yes. Flood Report is $3,500 + GST — CPEng-signed, site-specific HEC-RAS 2D report with before/after earthworks depth comparison, suitable for resource and building consent submission.
Free to view the map. $19 for a single-address OFP check. $3,500 for a full consent-grade flood assessment.