Buying first home - survey/damp issues

vitaminz

Hi I'm buying my first home with my fiancee and we've had our home buyer report results back today and I'm a bit concerned. The house is unoccupied and has been refurbished, and we were told previously that there was damp in the house and it had been treated. You can still patches on the walls however but we were assumed this was fine.

Anyway we had the survey report back today and it's raised a few issues, all regarding damp. See below extract of the report:

The walls are of solid, rendered, masonry construction. The front walls have been rebuilt and are
of cavity construction with a rendered outer leaf. The inner leaf is believed to be blockwork. The
walls are a mixture of pebble dash & smooth rendered. There are several air vents to ventilate the
air space beneath the ground floor. Internally, the external walls have been plastered; whilst those
in the kitchen and utility have been dry-lined with plasterboard with a final coat of plaster.

The front walls contain a plastic damp-proof course. We cannot confirm whether a damp-proof
course is present on the rear walls because of the external render coating obscuring the
construction. However, bearing in mind the age of the property, the walls are likely to have a
chemical damp-proof course.

High damp meter readings were recorded internally throughout the ground floor. We believe these
high reading are due to a combination of factors such as the absence of an effective damp-proof
course, the failure of the existing damp-proof course and the external render bridging the dampproof
course. It is evident that a damp and treatment has been undertaken and, if enforceable
guarantees exist, the original treatment company should return and report. However, as this will
take some time, you should ask a Property Care Association (https://www.property-care.org/) registered
company surveyor to inspect the property for damp and report to you before exchange of
contracts so that all costs of treatment are known before purchase. Any further inspection should
include a check on the whole property. We refer you to the page in this report entitled 'What to do
now'. This is a risk to the building and we refer you to our comments in Section J. Condition
Rating 3. Further Investigation.

In addition to any damp treatment necessary, the sub-floor ventilation should be improved and all
sub-floor areas should be exposed and inspected for further decay and we refer you to our
comments later in this report.

And in section J this is stated in 'risks to the building'

E1: Chimney stacks - damp within stack/s;
E2: Roof coverings - defective fillets/flashings;
E3: Rainwater pipes and gutters - defective/leaking gutters;
E4: Main walls - damp present;
F1: Roof structure - damp penetration;
F4: Floors - damp present; inadequate under-floor ventilation

Can anybody maybe give a better idea of what the implication is of this? It's obviously very concerning but could some of it be the result of damp that has been 'resolved'?