Does TN9 1SS flood?

Up to Low likelihood

Properties in TN9 1SS sit in the Environment Agency's Low flood-likelihood band (worst property). The band is the worst found in the postcode — it describes the land around properties (defence-adjusted, rivers & sea), not any single address, and not today's conditions.

Likelihood band	Annual chance	Properties
High	greater than 3.3%	0
Medium	1% – 3.3%	0
Low	0.1% – 1%	5
Very low	below 0.1%	0

Over a 25-year mortgage, a property in a low-likelihood area has a 2–22% chance of flooding at least once.

The ground around TN9 1SS

The ground here sits at about 23 m above sea level and falls 35 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-south-east, 4.2 m higher.

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Get the full flood report for TN9 1SS — £19 Free preview first · instant access · no account needed The detail below — flood history, warnings, rivers, overflows — is part of FloodRadar's property flood-risk report. The official band above is free; the preview shows more before you decide.

Inside the full report for TN9 1SS

FloodRadarProperty Flood-Risk Report

TN9 1SS

Moderate flood risk — investigate further

Because properties in the low likelihood band; 6 recorded floods nearby; 113 official warnings since 2006.

C Today — indicative grade (A best → E)

··· By the 2050s — EA climate scenario (in the full report)

⚑ Official warning within 10 km: Yes ⚑ Recorded flood nearby: Yes ⚑ Flood defences within 500 m: Yes ⚑ In flood zone 2 or 3: ···

Rivers & sea

Up to Low

Surface water

···

Groundwater

Not assessed

Historic flooding

Recorded nearby

Warning history · flood map with building picker · 2050s view · insurance outlook · every dataset receipt — 18 sections

Flood-risk map of this area

Environment Agency flood-likelihood cells

High (>3.3%/yr) Medium Low Very low Marker = postcode centre Base map © OpenStreetMap contributors

Rivers & sea likelihood · illustrative

Surface water (flash flooding) · illustrative

Flood Zones 2 & 3 (planning) · illustrative

2050s projection (climate) · illustrative

The map above shows the real EA rivers & sea likelihood cells around TN9 1SS. The small panels are illustrative previews of the report's per-layer map views — the full report draws each layer for real, plus recorded extents, defences and a building picker on an interactive map.

Official flood warnings near TN9 1SS

113

flood alerts & warnings within 10 km since 2014

of them full flood warnings or severe warnings

2026

most recent warning nearby (2026-02-06)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

Date	Recorded flood	Approx. distance
Dec 2013	07302C200_Dec2013_Medway_Eden_Teise_Beult	~8.0 km
Oct 2000	07302C200_OCT2000_Medway	~2.9 km
Sep 1968	07302C200_SEPT1968_Medway_Edenbridge_Yalding	~3.2 km
Jan 1967	07302C200_NOV1967_Medway_Tonbridge	~0.3 km
Nov 1963	07302C200_NOV1963_Medway_Tonbridge	~6.1 km
Nov 1960	07302C200_NOV1960_0010_Medway_Tonbridge	~3.7 km

EA Recorded Flood Outlines — absence of a record never proves a place has not flooded. The full report tests whether any extent covered the exact spot.

Named storms that brought flooding here

Henk (2024, 4 warnings nearby) · Dennis (2020, 4 warnings nearby) · Bella (2020, 3 warnings nearby) · Conall (2024, 2 warnings nearby)

The rivers that matter for TN9 1SS

Gauge	River	Distance	Typical high	Highest on record
Leigh Barrier	—	3.3 km	—	—
Leigh Flood Storage Area	River Medway	3.3 km	0.92 m	4.66 m
Hartlake Bridge	River Medway	3.5 km	1.25 m	2.13 m
Hartlake Bridge	River Medway	3.5 km	16.96 m	—

Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.

Storm overflows within 5 km

Overflow	Discharges into	Distance	Spills	Hours
Priory Road Tonbridge O/s 86 Cso	Botany Stream	0.4 km	55 (2024)	263
Tonbridge Wwtw	The Botany Stream	0.4 km	3 (2024)	18
Tonbridge Wwtw	The Botany Stream	0.4 km	32 (2024)	452
Priory Mill Tonbridge Wps	The Somerhill Stream	0.7 km	101 (2024)	1,387

Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.

Flood defences

26 mapped flood-defence assets within 500 m — nearest ~40 m (natural high ground, wall). Defences reduce risk, never remove it.

What the full property report adds

The interactive flood-risk map with a building picker (your exact house, not the postcode), the 2050s climate view, surface-water and planning flood zones at your building, exact recorded-flood distances, year-by-year warning charts, watercourses including culverted streams, an insurance outlook with the Flood Re rules, and a printable document with every dataset receipt — start with the free preview, unlock for £19.

Flood risk at nearby postcodes

TN9 1AH up to Low TN9 1AN up to Low TN9 1AP up to High TN9 1AS up to Very low TN9 1AW up to Medium TN9 1DJ up to Low TN9 1DL up to Very low TN9 1DR up to Medium TN9 1DS up to High TN9 1DT up to Low TN9 1DU up to Medium TN9 1DW up to Low

At-risk postcodes near TN9 1SS — all in the TN9 district.

© Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064. Recorded Flood Outlines and warning history © Environment Agency copyright and/or database right 2025. Storm-overflow figures: EA Event Duration Monitoring. Flood defences © Environment Agency (OGL v3). This page summarises public area-level data — it is not a flood-risk survey and not a substitute for the official GOV.UK service. All data sources & licences. More postcodes: the TN9 district.