Selling a House at Risk of Coastal Erosion: 2026 UK Guide

By Lisa Hayes · 14 October 2026

Yes, you can sell a house that is at risk of coastal erosion in the UK, but you must disclose the risk, expect fewer mortgage buyers and a lower price, and you should check the Environment Agency's erosion map and your local Shoreline Management Plan before you list. Cash buyers and specialist investors will still buy, because the risk to them is a number they can price in. The ones who cannot be priced are the buyers who find out halfway through conveyancing, and that is the sale that collapses.

I have watched sellers lose months to this. Not because their house was unsellable, but because nobody told them what the buyer's solicitor was about to discover. So this guide is the one I wish every coastal owner had before the first viewing.

How do you know if your house is at risk of coastal erosion?

You do not need a surveyor to start. You need two free government tools and about twenty minutes.

The first is the National Coastal Erosion Risk Mapping (NCERM), published by the Environment Agency under the Open Government Licence. The 2024 version shows land in England likely to be at risk of erosion, and unlike the previous edition it also includes zones of ground instability. It uses a present-day baseline and the higher UKCP18 sea level rise allowances. The Environment Agency is clear about its limits: the data is guidance only, it cannot give details for an individual property, and it shows land likely to be at risk rather than the exact position of a future shoreline.

The second is the Shoreline Management Plan explorer. There are 20 SMPs covering the English coast, drawn up by coastal groups (the Environment Agency, local authorities and others) and developed between 2006 and 2012. They set a strategy through to 2105, with a mid-century marker at 2055. They are described as living plans and councils use them in planning, including when they designate Coastal Change Management Areas.

Here is the catch that trips people up. The map tells you what the sea might do. The SMP tells you what the authorities intend to do about it. Those are different questions, and the second one drives price.

• Hold the line: defences are kept where they are or upgraded.
• Advance the line: defences move significantly seaward.
• Managed realignment: the shoreline is allowed to shift in a controlled way.
• No active intervention: a more natural coastline, possibly with adaptation planning.

Every one of those depends on funding being available. "Hold the line" is a policy, not a guarantee. I would not pay a premium for it, and I would not let a buyer talk me into one for it either.

What do the SMP policies mean for your sale price?

Nobody publishes a neat discount table for each policy, and anyone who quotes you an exact percentage is guessing. What I can tell you is how buyers, lenders and insurers tend to behave, because that is what sets the price.

That table is my reading of how the market responds, not an official ranking. Your own situation will differ, and one stretch of coast can carry several different policies along a few miles, so check the exact frontage in front of your house.

Do you have to tell buyers about coastal erosion?

In practice, yes, and the direction of travel is firmly towards more disclosure, not less.

Start with the law you already live under. Under the Consumer Protection from Unfair Trading Regulations 2008, leaving material information out of a property listing is an offence. There has been no prescribed list of what counts as material, so the trader (usually your estate agent) has to judge what an average consumer needs to know. A cliff edge that is losing metres is not a close call.

Then there is the political pressure. In March 2026 the House of Commons Environment, Food and Rural Affairs Committee said conveyancers had failed home buyers by not recognising coastal erosion and landslide risk, calling the omission "unacceptable" given that clear risk data is publicly available. It recommended that conveyancers and estate agents treat these risks as material information within the government's home-buying reform. The Environment Agency told the committee that buyers are not being given enough information to make an informed choice, particularly buyers who are not taking a mortgage and so never meet a lender's checks.

For you as the seller, this is practical. Your agent should be putting erosion risk in the particulars. Your solicitor should be answering the TA6 honestly. If you want to see how the form handles this sort of thing, read our TA6 guide, and for the wider rules, material information when selling and what you must legally disclose.

If you know the cliff has moved in your time there, say so. A buyer who hears it from you at the first viewing forgives it. A buyer who hears it from a search report three weeks in assumes you were hiding the rest.

The same logic applies to anything you have been told by the council: a notice, a letter about demolition, a Coastal Change Management Area designation. Hand it over. Do not wait to be asked.

Can you get a mortgage on a house at risk of erosion?

Sometimes. Often not on the terms the buyer hoped.

Lenders value the property as security for 25 years or more. If a surveyor flags that the land under the house is likely to be lost within that period, or that the property cannot be insured, many lenders will decline or reduce what they will lend. Each lender has its own policy and applies it to the specific address, so I will not pretend there is a single rule. What I can say is that mortgage-dependent buyers are the first to drop out of a coastal-erosion sale, and they tend to drop out late, after the valuation.

That is why down valuations and unmortgageable houses are close cousins of this problem. If your property is in the highest-risk band, treat it as unmortgageable from day one and market it to the buyers who can actually complete.

On that last point, our proof of funds guide is worth ten minutes before you accept anything.

What about buildings insurance?

This is where the sale usually gets difficult, so ask early. Standard buildings policies commonly exclude or limit cover for gradual loss such as erosion, and insurers will price or refuse cover based on location. I cannot tell you what your insurer will do, and the answer varies by company and address, but a buyer who cannot get cover cannot get a mortgage either, and a cash buyer will still reduce their offer for the pain of it.

Do two things. Ask your own insurer, in writing, what your policy says about erosion and landslip, because buyers' solicitors will ask for it. And ask a broker who deals with difficult risks whether a quote is obtainable for the property. Having an actual quote in the pack is worth far more than reassurance.

Is there compensation if your home is lost to the sea?

No, not in the way most people hope. There is no general scheme that pays you the market value of a house that erodes away. The government's support is the Coastal Erosion Assistance Grant, and it is narrow.

• £10,000maximum grant per eligible property (raised from £6,000)
• 15 Jun 2009owner must have bought before this date
• 2055property must be in the erosion risk zone to that point
• 20Shoreline Management Plans cover England

Based on the published scheme details, the grant is administered by the Environment Agency for Defra, and it is local authorities, not homeowners, who apply. To qualify, the property must be a non-mobile residential building in a coastal erosion risk zone on the national map (present day to 2055 under the SMP scenario), the current owner must have bought it before 15 June 2009, demolition must take place after that date, the council must require the demolition, and there must be no other source of demolition support such as insurance. It mainly covers demolition costs, basic moving expenses and transitional costs like redirecting post, reconnecting services and removing contents. Councils can request more in exceptional cases.

Read that again with a seller's eye. It does not pay for the house. It does not help anyone who bought after June 2009. It is a bill-softener at the very end of a property's life. Do not let anyone, including an optimistic agent, suggest a grant will make a buyer whole.

What happens to your property if the council orders demolition?

If the building becomes dangerous or the land under it is lost, the council can require demolition, and the cost lands with the owner unless a grant or insurance covers it. This is why the date of purchase matters in the grant rules and why a buyer's solicitor will ask pointed questions about any council correspondence.

If you are anywhere near that point, selling quickly to someone who understands the risk is often a far better outcome than waiting. It is also the situation where speed and certainty matter more than the last few thousand pounds. Our guides on selling an unsellable house and cash house buyers explain how those sales work.

What searches will the buyer's solicitor run?

Great Yarmouth Borough Council's advice for buyers is a useful model of what a careful buyer does: check the SMP explorer, and ask the conveyancer to commission an erosion risk report. The council itself says it cannot tell a buyer whether the risk is acceptable for a particular purchase, because that depends on the buyer's circumstances. It names commercial providers such as Groundsure, Landmark and Future Climate Info as examples of companies that produce those reports.

The sensible move for you is to anticipate that. Ask your solicitor whether an environmental or climate-risk report is worth commissioning before you list, and share the result with serious buyers. A seller who arrives with the data looks like a seller with nothing to hide.

1. Check your address on the NCERM and save a dated copy.
2. Find your frontage on the SMP explorer and note the policy for the short, medium and long term.
3. Gather every letter from the council, Environment Agency or coastal partnership.
4. Ask your insurer for written confirmation of what is covered.
5. Get a broker's view on whether a mortgage buyer is realistic.
6. Decide your route: open market with full disclosure, or a cash sale.

Should you sell on the open market or to a cash buyer?

It depends on how high the risk is and how long you are willing to wait. My rule of thumb, and it is only a rule of thumb: if your property is in the nearer-term risk zone or sits under a no-active-intervention frontage, go straight to buyers who do not need a lender. If the risk is longer term and defences are in place under a hold-the-line policy, test the open market first, with every document ready.

A few traps are worth naming:

• Pricing as if the neighbour three streets inland is your comparable. It is not.
• Letting the agent say "nothing to worry about". That sentence has become a liability for agents, and for you if you repeat it.
• Hoping the buyer does not search. Cash buyers often do not use lenders, which is exactly why regulators are worried, and it is why the sensible ones commission their own reports.
• Accepting an offer without proof of funds. In a niche market, time-wasters thrive.

If you are weighing up a fast sale, our guides to selling a house fast and the discounts cash buyers apply explain what a sensible offer looks like and why. Understand the discount before you take it, not after.

How do you value a house with erosion risk?

Start with an unaffected comparable and then adjust, honestly, for what the risk does to the buyer pool. A free house valuation is a reasonable first step, but tell whoever gives it about the erosion risk. A valuation that ignores it is worth nothing in a negotiation. Our guide to what your house is worth covers the basics.

Be realistic about the shape of the offers you will get. Expect a wide spread between a cautious mortgage-backed bid, if any, and a cash investor's number. The investor's price is lower, but it comes with certainty. Whether that trade is worth it depends on how much the risk is moving.

What if you own the house with someone else, or in a probate situation?

Erosion makes every other complication harder. If you are selling an inherited property, the executors have to disclose just like any seller, and the probate valuation date matters for tax. See selling an inherited property. If you are landlords selling a let property, selling with tenants in place adds another layer. And if you own a flat in a coastal block, the freeholder's plans for the building affect you; our selling a flat fast guide is the place to start.

Will the rules get tougher?

Almost certainly. The committee's report called the government's 2025 home-buying consultations an opportunity for mandatory risk disclosure and standardised material information, and warned that their absence leaves a "regulatory gap". It also pointed to the need for guidance covering the surrounding area, access, utilities, and the availability of mortgages and insurance, plus practical help with insurance, demolition costs and relocation. Our guide to the 2026 home buying and selling reforms tracks where that stands.

If you are on the fence about selling, my honest view is that disclosure rules only tighten from here. Information that is optional today is likely to be mandatory tomorrow, and a buyer who learns about erosion after exchange has every reason to be angry. Sell on a clear footing.

Common mistakes coastal sellers make

• Relying on an old SMP page. The policy for your frontage may have been revised, so check the explorer, not a leaflet.
• Quoting the NCERM as if it were a survey. It is guidance at area level and cannot assess a single property.
• Skipping the insurer conversation until the buyer asks.
• Waiting for "the council to decide". If a decision is coming, it will probably not improve your price.
• Ignoring ground instability. The 2024 mapping includes zones of ground instability, which means a house set back from the cliff edge can still appear on it.

Frequently asked questions

Can I sell a house at risk of coastal erosion?

Yes. There is no law stopping you. You must be honest about the risk, and the pool of buyers will be smaller, particularly mortgage buyers.

Where do I check erosion risk for my address?

Use the Environment Agency's National Coastal Erosion Risk Mapping and the Shoreline Management Plan explorer. Both are free, and both are guidance rather than a survey of your individual property.

Does the government pay compensation for homes lost to erosion?

No general compensation exists. The Coastal Erosion Assistance Grant of up to £10,000 per eligible property helps with demolition and moving costs, for owners who bought before 15 June 2009, and is applied for by the local authority.

Will the buyer's solicitor find out about erosion risk?

They should. The data is public and a parliamentary committee has said conveyancers failing to flag it is unacceptable. Assume it will be found and disclose first.

Is coastal erosion covered by buildings insurance?

Often limited or excluded. Check your own policy wording and ask a specialist broker, because buyers and lenders will want to see evidence of cover.

Who buys houses at risk of coastal erosion?

Mostly cash buyers, investors and specialists who price the risk into their offer. Some mortgage lenders will lend depending on the address, but many will not.

Where to go from here

Erosion risk is a hard thing to sell around, but it is not a dead end. The sellers who do well do the boring work first: the map, the plan, the paperwork, the insurer's letter. Then they pick the route that fits the risk instead of hoping for the best.

When you are ready to see what real buyers would pay, you can compare offers from cash buyers with no obligation. And if you want to read around first, the rest of our guides and our property jargon explained page are there to help.