Environment Agency data — England

MK9 flood risk: Milton Keynes

No Zone 2 or 3 record returned from this dataset

The historical Planning Data dataset returned no matching Zone 2 or 3 record at the representative point for Milton Keynes (MK9). This does not establish a current Zone 1 result or a safe property. Check the current Environment Agency map; other flood mechanisms and nearby streets can differ.

Central Milton Keynes near the Grand Union Canal and balancing lakes.

Flood zone band

These are planning-zone definitions. Only a returned Zone 2 or 3 match is highlighted. Planning Data lists new data last found on 24 August 2023 (checked 5 September 2026); confirm the current position on the Environment Agency map.

Zone 1 — Low

Below a 1-in-1,000 annual chance from rivers/sea.

Zone 2 — Medium

1-in-100 to 1-in-1,000 annual chance from rivers.

Zone 3 — High

1-in-100 or greater from rivers; 1-in-200 from the sea.

Recorded flood history nearby

No published recorded-flood outline was returned within ~250 m of the representative point for MK9. This source is not a complete flood history and does not establish that a home has never flooded.

Climate-change river-flow uplift

Management catchment: Upper and Bedford Ouse (Anglian). Projected % uplift to peak river flow vs the 1961–1990 baseline (river flooding only):

Epoch	Central (50%)	Higher central (70%)	Upper end (95%)
2020s	+5%	+10%	+24%
2050s	+4%	+11%	+30%
2080s	+19%	+30%	+58%

River (fluvial) flooding only — says nothing about surface-water or tidal change.

What this means for buyers and insurance

Flood zones are mapped at street level — an outcode is too coarse to decide on a single property. A home a few metres from a Zone 3 boundary can be Zone 1, and vice versa. Treat this page as the area context, then check the exact address.

Ask the lender which searches are needed and obtain an insurance quote for the exact property. Flood Re provides reinsurance for eligible risks; the insurer sets the customer's premium, excess and terms. Ask the seller about previous flooding and have your conveyancer follow up the answers and supporting documents. How Flood Re works.

Check a specific MK9 address

This page uses one representative point for MK9. Our free guide explains the available screening and its limits. Complete (£24.99) combines available property records into a human-checked report; postcode and area data cannot establish this building's full flood history or an insurance decision.

Try or search any UK postcode

Check an address — flood-risk tool Should I buy a house with flood risk?

Frequently asked questions

Is MK9 in a flood zone?

What do the flood zones mean for buying a house?

Flood Zone 1 is low risk (below a 1-in-1,000 annual chance of river flooding). Zone 2 is medium (1-in-100 to 1-in-1,000). Zone 3 is high (1-in-100 or greater from rivers, or 1-in-200 from the sea). A home in Zone 2 or 3 can be harder to insure and mortgage, and you should ask the seller about flood history on the TA6 Property Information Form.

Does a flood zone affect insurance and mortgages?

A planning zone does not determine the premium, lender decision or Flood Re eligibility. Flood Re is a reinsurance scheme; insurers set the customer's prices and terms. Ask the lender and obtain a quote for the exact property, checking any scheme eligibility with the insurer.

How do I check flood risk for a specific MK9 address?

Start with the Environment Agency long-term flood service and Flood Map for Planning, and ask separately about previous flooding and insurance terms. Our free tool explains postcode screening; Complete (£24.99) brings available records into a human-checked report with source and location limits. It cannot establish this building's full flood history or insurance terms.

Sources

Long-term flood risk check — Environment Agency / GOV.UK
Flood Map for Planning (flood-risk-zone) — planning.data.gov.uk
Outcode geocoding — postcodes.io