Survey finding
PRC (precast reinforced concrete) house: survey, mortgage and what to do
PRC house mortgage problems and PRC house survey questions are the two biggest searches buyers run after their surveyor flags precast reinforced concrete construction. This page sets out what PRC means, why it became a designated-defective category under the 1984 Act, what a PRC Homes Ltd certificate changes, and how to handle the lender, insurer, and seller conversation.
Last updated: 6 May 2026. Editorially reviewed: 20 May 2026.
Finding
PRC (precast reinforced concrete) house
What this usually means
Precast reinforced concrete (PRC) houses were built across the UK from the 1940s to 1960s as fast post-war housing, using prefabricated concrete panels with embedded steel reinforcement. Common system-build types include Airey, Cornish Unit, Wates, Reema, Unity, Boot, Tarran, Woolaway and Smith. Most were declared 'defective' under the Housing Defects Act 1984 because the embedded steel can corrode and weaken the panels over time. Many have since been repaired under PRC Homes Ltd or local council schemes, repair quality and certification are now the headline mortgage factors.
Why it matters
PRC properties without a certified repair are very difficult to mortgage on the high street. Once a PRC Homes Ltd or equivalent licensed-repair scheme has been completed and certified. The property typically returns to mainstream lender appetite. The certificate, the engineer's sign-off, and any 60-year structural warranty are the documents that change the mortgage outcome.
Ask your surveyor
- Check:Which PRC system is this (Airey, Cornish Unit, Wates, etc.) and is the system identifiable from external features?
- Check:Has the property been repaired under a recognised scheme, is there a PRC Homes Ltd certificate or equivalent?
Ask the seller
- Check:Do you have the PRC repair certificate and structural warranty documentation?
- Check:Have any post-repair inspections or remedial works been carried out?
Next steps
- •Confirm with your broker which lender will accept this construction type before paying for any further surveys.
- •Order a structural engineer's report if no recent one exists in the property's records.
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What you need to know
Severity
Serious. Lender and insurer involvement likely; structural or specialist remediation.
Typical cost to fix
PRC repair is typically £30,000–£100,000+ per property depending on system type and which panels are replaced. Most repairs were carried out under government grant schemes in the 1980s–2000s; if a property is still unrepaired. The cost falls on the buyer or seller. A specialist PRC structural engineer's report runs £600–£1,500.
Mortgage impact
Many high-street lenders decline PRC properties without a certified repair outright. Once a recognised scheme repair has been completed (PRC Homes Ltd certificate is the gold standard), most mainstream lenders will lend at standard rates. Some specialist lenders consider unrepaired PRC at higher rates and lower LTVs, often capped at 75–80%. Confirm with your broker and ask for the original PRC certificate before paying for the survey.
Insurance impact
Standard buildings insurance is available on certified-repaired PRC; uncertified PRC requires specialist insurer placement at higher premiums. The structural element of cover is often the issue, not flood or fire. Ask insurers to quote on the PRC certificate and any 60-year structural warranty.
When to pull out
Pull out if the property is unrepaired, no certificate exists. The seller can't fund repair, and your lender refuses. Do not assume an unrepaired PRC is unmortgageable. Specialist lenders exist, but expect the rate, LTV and timeline to all be worse than a standard property.
When to renegotiate, and by how much
If the property has a valid certificate, treat as standard for negotiation. If unrepaired and the seller wants to proceed without doing the works, negotiate down by the full repair cost plus 15–20% buffer. Ask for the seller to obtain at least one specialist quote before you commit.
Thinking of pulling out or renegotiating? What to do after a bad survey
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Prefab concrete construction , often sits near prc (precast reinforced concrete) house on a survey and is the next thing to check.
How MyPropertyScan produces this guide, and what it is not
Published by MyPropertyScan and written by Ziad Nasr, who is accountable for its accuracy. No page here is written or reviewed by a chartered surveyor, conveyancer or regulated adviser, and we do not claim otherwise.
This page is not:
- Chartered surveying — we do not inspect properties or produce RICS Home Survey reports
- Legal advice — we do not act as conveyancers or advise on title, tenure or contracts
- Mortgage or insurance advice — we are not regulated by the FCA and give no recommendations
Figures and process steps come from the published UK datasets and standards listed on this page, not from professional practice. Pages are updated when source coverage, survey cost assumptions, or lender and legal requirements materially change. Dataset limitations are set out on the methodology page.
Spotted something out of date or wrong? Email hello@mypropertyscan.com and we will correct it and change the update date.
Sources used
We use UK public and specialist sources where they are available. Public datasets can be incomplete, delayed, or missing for some addresses. Treat them as a starting point, not as a replacement for professional advice.
Source standard: preference goes to official government datasets, statutory bodies, professional standards, and primary dataset publishers. We cite the source family on the page and explain coverage limits rather than filling gaps with unsupported estimates.
- Professional standard: RICS Home Survey StandardRICS standard for condition-based residential surveys in the UK.
- Learn more from: RICS consumer guide to surveysConsumer-facing guide to survey types and when each level is appropriate.
- Official guidance: GOV.UK buying or selling your homeGovernment overview of the home buying and selling process.