It does depend on the house and the market.
If someone wants to borrow high LTV, then there a bigger chance the house won’t be worth the size of the mortgage and the lender could potentially lose out if prices fall or house has been over-priced. When someone is borrowing less than 50% of value, the chances of the price dropping so far as to mean the lender can’t be repaid if it has to be repossessed and sold, is tiny and so tabletop valuation of a standard property where there is lots to compare it to is more likely.
Given mortgage lenders are twitchy....fearing the massive recession were going into and expecting house prices to fall, they require bigger deposits and are more likely to look When valuing to ensure there is enough value in the house if prices do fall for it to be sold by them if repossessed and their loan will be repaid.
It’s true that they are always more likely to look at any time if a property is unusual or difficult to compare.
Never though, is the tidiness of the house going to determine the value.
These valuations are not full surveys. They aren’t looking at all the details such as electrics or maintenance. They certainly aren’t looking at if it’s been hoovered .It is about the broad value of the property in relation to the loan that is given.
Often a valuer is a different person to the surveyor. They can be the same person but often people want their own survey carried out whereas the valuer is essentially working for the mortgage lender even if it’s you who has to pay.