South Coast House Prices
Parish of DonningtonChichester district87 postcodes

Flooding and land in Donnington

Figures last changed 22 October 2026. House prices for Donnington are on the main Donnington page.

Flood zone 3
0 of 87
postcodes; 0 more in zone 2
Surface water
48 of 87
high or medium risk within 25 m
Rivers and sea, 2050s
0 → 0
postcodes at high or medium risk, now then in the 2050s
Flood warnings
0 days
in the 10 years to June 2026
Flat, low-lying fields near Donnington, looking towards Apuldram
Photo: Peter Trimming, CC BY-SA 2.0, via Wikimedia Commons.

Does Donnington flood?

From rivers and the sea, very little: none of Donnington's 87 postcodes has its centre point in flood zone 2 or 3. These zones cover rivers and the sea only and ignore flood defences. Rain is a separate risk: on the Environment Agency's surface-water map (read 22 October 2026), 48 of the 87 postcodes (55%) have high or medium risk within 25 metres of their centre point. Groundwater isn't mapped in either, and a postcode is not a house: check an exact address on GOV.UK.

Source: Environment Agency Flood Map for Planning · Check an address for flood risk · What the flood zones leave out · New builds and Flood Re.

What locals say

  • Locals don't think of Donnington as a place that floods.

Will Donnington flood more in future?

Yes, noticeably more, on the Environment Agency's climate change scenario. Its long-term flood maps, unlike the flood zones above, count flood defences. From rivers and the sea, none of Donnington's 87 postcodes have their centre point at high or medium risk today, and none under the scenario, which runs to the 2050s with sea level rise to 2065. From heavy rain, 48 have high or medium risk within 25 metres today, and 55 under the scenario. High risk means at least a 1 in 30 chance of flooding in any year, and medium means between 1 in 100 and 1 in 30. The maps were read on 22 October 2026.

Source: Environment Agency long-term flood risk maps, today and with climate change.

How often does Donnington get flood warnings?

None in the ten years to June 2026: the Environment Agency issued no flood warning for the areas covering Donnington. One of its 87 postcodes sits inside the Agency's flood warning area "Chichester on the River Lavant", with none. No severe flood warning, the level that means danger to life, was issued in that time. Flood alerts, the earlier message that flooding is possible, went out on eight days in that time, most recently on 2 February 2026. Warnings cover flooding from rivers and the sea, and groundwater in a few places, not heavy rain on its own. Each count is of days on which a new warning or alert went out, so updates on an event already running are not counted again.

Source: Environment Agency Historic Flood Warnings · Environment Agency flood warning and alert areas (real-time flood-monitoring API) · Sign up for free flood warnings.

Are there old landfill sites near Donnington?

Yes. The Environment Agency's record of historic landfill sites shows three within 500 metres of a Donnington postcode, and ten of its 87 postcodes (11%) have their centre point on one or within 250 metres of it. The one closest to most postcodes is Canal South Of A27, which took liquid sludge and inert waste such as soil and rubble between 1980 and 1991. The others are Kingsham Farm and Jury Lane. A historic landfill is an old tip with no environmental permit in force: one that closed before tips were licensed, or whose licence has since ended. The Agency says much of its record comes from a national survey in the early 1990s, so it may be incomplete, and some boundaries are only approximate. An old tip nearby does not by itself mean a problem; the council's contaminated land register, or a search on an exact address, says more.

Source: Environment Agency Historic Landfill Sites.

Flooding and land in nearby places

  • Chichester: Parts of it can: 99 of its 1,128 postcodes are in flood zone 3, and 43 more in zone 2; 465 (41%) have high or medium risk from heavy rain.
  • Fishbourne: Very little from rivers and the sea: none of its 78 postcodes is in flood zone 3, though one is in zone 2; 27 (35%) have high or medium risk from heavy rain.
  • Birdham: Very little from rivers and the sea: none of its 58 postcodes is in flood zone 3; 18 (31%) have high or medium risk from heavy rain.
  • Bosham: Parts of it can: ten of its 122 postcodes are in flood zone 3, and four more in zone 2; 39 (32%) have high or medium risk from heavy rain.

Figures cover 87 postcodes in Donnington. How these figures are made.