Buying a Flat With No EWS1 as a Cash Buyer What You Need to Know
Cash means no mortgage lender to say no, but the fire-safety risks are exactly the same. Here is what to check before you commit.

What the EWS1 form actually is and why it keeps coming up
The EWS1, which stands for External Wall System form one, is a fire-safety assessment carried out by a qualified professional, usually a chartered fire engineer or similarly accredited surveyor. It tells a mortgage lender whether the external wall construction of a building poses an unacceptable fire risk. It came into widespread use after the Grenfell Tower fire in 2017 forced the industry to confront how many residential blocks had dangerous cladding or insulation hidden behind their facades.
The form gives a building one of two broad outcomes. An A rating means the materials used are unlikely to support combustion and the lender is generally satisfied. A B rating means combustible materials are present, and a further sub-rating then tells the lender whether remediation is needed before they will lend. If a building has no EWS1 at all, most high-street lenders simply will not offer a mortgage on flats within it, full stop.
That is the lender's veto. As a cash buyer you sidestep it entirely. But sidestepping a lender's concern is not the same as the concern going away.
Why cash removes the lender veto but not the underlying risk
When you buy without a mortgage, nobody is checking the building on your behalf. The lender's refusal to lend is, in a roundabout way, a form of consumer protection. Annoying as it feels to sellers and buyers stuck in chains, it is the lender saying this building has an unresolved safety question and we are not prepared to carry that risk. When you pay cash, you absorb that risk yourself, completely.
Fire safety is the most serious part of that. A building without an EWS1 may have perfectly safe cladding that simply hasn't been assessed yet, or it may have materials that are genuinely dangerous. You will not know which until someone qualified looks at it. The absence of the form tells you nothing about the actual condition of the walls.
There is also the question of ongoing costs. If the building does turn out to have unsafe cladding or other fire-safety defects, someone has to pay for the remediation. The Building Safety Act 2022 introduced protections for leaseholders in buildings over eleven metres, capping or eliminating some of those costs depending on the circumstances, but the rules are genuinely complex and not every building or every type of defect is covered. You need a solicitor who understands the Act, not just a general conveyancer.
In short, buying for cash means you can proceed. It does not mean you should proceed without doing the same homework a lender would demand.
The resale trap that catches cash buyers off guard
Here is the practical problem that many cash buyers only discover when they try to sell. You bought without a mortgage, so the missing EWS1 was your problem to manage. But your future buyer may well need a mortgage. If the building still has no EWS1 by the time you come to sell, you will be trying to sell a flat that most buyers simply cannot finance.
That narrows your market to other cash buyers, and cash buyers know they hold the cards. They will negotiate hard, and they will be right to. You could find yourself selling at a meaningful discount compared to comparable flats in the same area that do have a clean EWS1.
It gets worse if the building turns out to need remediation and that work is still ongoing when you sell. Buyers, lenders and their surveyors are all cautious about buildings mid-remediation. Even if the work is funded and contracted, the uncertainty puts people off.
This is not a theoretical scenario. Thousands of flat owners across England have lived this reality since 2017. Going in with your eyes open means pricing that resale risk into what you are prepared to pay today.
The checks a cash buyer should insist on before exchanging
Just because you can skip the lender's checklist doesn't mean you should skip your own. Here are the things worth insisting on.
First, commission a specialist fire-safety survey or a RICS Level Three building survey from a surveyor with demonstrable experience in high-rise or medium-rise residential blocks. A standard homebuyer report is not enough. You want someone who will look at the external wall construction, the compartmentation, the fire doors and the overall fire strategy for the building.
Second, ask the seller and their solicitor directly whether an EWS1 has ever been commissioned, even if it hasn't been completed. Sometimes a form is in progress, sometimes one was done and came back with a poor rating and the seller has quietly moved on. You are entitled to know.
Third, get your solicitor to request the building's fire risk assessment. Freeholders and managing agents of residential blocks are legally required to carry one out and to share it with leaseholders. Reading it, or having someone read it for you, will tell you a lot about how seriously the building is being managed.
Fourth, check whether the building is registered on the Building Safety Register if it is over eighteen metres tall. Taller buildings have additional legal obligations under the Building Safety Act and you want to know the responsible person is meeting them.
Fifth, ask about the service charge history and whether any major works notices have been issued. Remediation costs can run to tens of thousands of pounds per flat even with leaseholder protections in place, so knowing what is already planned or anticipated is essential.
Questions to ask about remediation funding before you buy
One of the most important things to establish is whether the building is in line for government remediation funding or whether the developer has agreed to carry out works under the developer remediation contract. If the developer who built or refurbished the block is still trading and signed up to the government's scheme, there is a reasonable chance the costs of fixing unsafe cladding will not fall on leaseholders at all.
If the developer is insolvent or never signed the contract, the picture is murkier. The Building Safety Act leaseholder protections still apply in many cases, particularly for buildings over eleven metres, but the protections have qualifying conditions and there are categories of defect they do not cover. Your solicitor needs to work through this carefully.
Ask the managing agent or freeholder directly what the remediation plan is, who is funding it and what the timeline looks like. Get the answers in writing. Vague reassurances that it will all be sorted are not good enough when you are committing hundreds of thousands of pounds.
Also ask whether the building has waking watch costs, which are the costs of having fire wardens patrol the building overnight because the alarm system is inadequate. Waking watch is expensive and the cost falls on leaseholders through the service charge. It is a sign that the building has a known fire-safety problem that hasn't yet been resolved.
How to think about the price you offer
If you have done your checks and you still want to proceed, the price needs to reflect the risk you are taking on. That is not pessimism, it is just sensible negotiating.
Think about it in three layers. The first is the resale discount you might face if the building remains unmortgageable when you come to sell. The second is any potential leaseholder contribution to remediation costs that isn't covered by the Act or by developer funding. The third is the time and stress involved in managing a building that has unresolved fire-safety issues, because it does take up headspace.
None of those figures are things anyone can give you precisely in advance. But a good surveyor, a good solicitor and a frank conversation with the managing agent will help you make a reasonable estimate. If the seller is not willing to reflect any of that risk in the price, you have to ask yourself why they are so confident the risk is negligible, and whether you share that confidence.
Buying a flat with no EWS1 as a cash buyer can absolutely be the right decision. Some buildings genuinely just haven't been assessed yet and will come back with a clean bill of health. The point is to know what you're buying, not to assume the absence of a form means the absence of a problem.
Getting the right professionals around you
This is genuinely not the moment to cut corners on professional advice. You want a solicitor who has handled post-Grenfell leasehold transactions and who knows the Building Safety Act properly. Ask them directly how many EWS1-related transactions they have dealt with in the last two years. If the answer is vague or low, find someone else.
For the survey, look for a RICS-regulated surveyor or a chartered fire engineer who specifically lists residential fire-safety assessments in their work. The Royal Institution of Chartered Surveyors and the Institution of Fire Engineers both have directories you can search.
It is also worth speaking to a mortgage broker even though you don't need a mortgage right now. A good broker will tell you honestly which lenders are currently lending on buildings similar to yours, which gives you a read on how mortgageable the flat is likely to be when you sell. That is free market intelligence.
Finally, join the building's residents association if one exists. Other leaseholders will know things about the building's history, the managing agent's reliability and the remediation situation that no document will tell you. That kind of on-the-ground knowledge is genuinely valuable.
Common questions
- Can a cash buyer legally purchase a flat with no EWS1 in the UK?
- Yes, completely legally. There is no law requiring an EWS1 form to exist before a sale can complete. The form is a requirement imposed by mortgage lenders on themselves, not a legal prerequisite for ownership. As a cash buyer you are free to purchase without one, though you take on the associated fire-safety and resale risks yourself.
- Will I be able to sell the flat later if it still has no EWS1?
- You can sell, but your buyer pool will be limited to other cash buyers if the building remains unmortgageable. That typically means accepting a lower price than you would get if the building had a clean EWS1 and mortgage lenders were happy to lend on it. The longer the fire-safety situation remains unresolved, the more that discount can bite.
- Does the Building Safety Act 2022 protect me from remediation costs as a leaseholder?
- It offers significant protections, particularly for leaseholders in buildings over eleven metres, but the rules are detailed and not every cost or every building is covered. The protections depend on factors including the height of the building, when you bought, and whether the developer is still trading. You need a solicitor experienced in the Act to give you a clear picture for your specific flat.
- What is waking watch and should it worry me as a buyer?
- Waking watch means the building employs fire wardens to patrol overnight because its alarm system is not considered adequate to keep residents safe. The cost is charged to leaseholders through the service charge and can be substantial. If a building has waking watch in place, it is a clear signal of an unresolved fire-safety problem. You should find out what the plan is to end it before you commit to buying.
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Flatscope is informational software, not regulated financial or legal advice. Figures are read from public records at the time of writing and can change. Confirm anything decision-critical with your solicitor or surveyor.