Non-standard construction
How should a buyer separate a concrete floor screed, a Cornwall bungalow and a mundic class that screed cores, if any, do not give the walls when all three are mentioned together?
Separate them by what each one is. The concrete floor screed is a topping on the floor. The Cornwall bungalow is the house that screed sits in. A mundic class for the walls is something screed cores, if any, do not give. RICS guidance on the mundic problem is for surveyors in the south west, and it is not a floor finish standing in for the walls. Cornwall Council describes a core test and does not provide it. A home survey does not drill cores or award Class A, B or C. One note that mentions all three has not classed the wall block.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
A screed is a thin layer laid over a floor. It can be a different mix from the concrete block in the walls, in the same bungalow. Cores taken through a screed, if anyone took them, would speak to that floor layer. They would not automatically speak to the walls. This home survey has not drilled those cores. The south-west guidance exists so surveyors know when a proper test of the relevant concrete is a separate matter. The bungalow's location does not convert a floor topping into a wall class.
Tell the solicitor the screed, the Cornwall bungalow and any talk of class are three different things, and that the walls have no class from this visit. If a lender asks about mundic, the answer is that the home survey did not award Class A, B or C. A core test of the wall concrete, if it is needed, is a further instruction. Cornwall Council describes that test and does not provide it. Do not offer the floor screed as the missing result.
What should you ask your surveyor?
- Is the screed a floor topping rather than the wall concrete?
- Would screed cores, if any exist, still leave the walls unclassified?
- Has this home survey awarded any class for the bungalow?
What are the typical next steps?
- Keep the floor screed separate from the wall concrete.
- Tell the solicitor no class was given for the walls.
- Treat a wall core test as a further instruction, not as this survey.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
Does a sound-looking floor mean the walls share that result?
No. A concrete floor screed can look sound and still be a different material from the walls. Screed cores, if any, do not give the walls a mundic class. This home survey does not award Class A, B or C. Cornwall Council describes a core test and does not provide it. The floor and the walls stay separate.
Is every Cornwall bungalow caught by the mundic note?
No. The note is that this bungalow was mentioned with a screed and with class words that the screed does not earn for the walls. RICS guidance is for surveyors in the south west. It does not say that naming a bungalow tests its concrete. This visit has not drilled cores and has not classed the walls.