External ground level must be below the height of the internal ground floor timber floor joists, ideally at least 100 mm below.
Furthermore, the external sub-floor vents must be retained and kept flowing - both to front and rear of building, and to flank walls if present. If these are 'missing' or blocked, it is essential they are re-opened, otherwise ground moisture below the timber floors of the house cannot evaporate and the ground floor will rot.
Reduction of external ground level can be achieved by digging a small trench around the outside of the building - these are sometimes shingle-filled depending on how this fits with other landscaping.
Neither of these tasks require a damp or timber specialist and can be performed by a general builder / handyman.
Lastly, it would be interesting to know of any negative consequences reported by the surveyor of the damp you mention in passing e.g. has the degree and extent of dampness been quantified, and is it actually significant i.e. is the timber ground floor firm, is there any decorative damage? or are the surveyor observations merely precautionary.
Anthony J Lewis & Co. Chartered Surveyors
What is a Chartered Surveyor?
Up to 4 instant quotes from Chartered Surveyors
11,920 user reviews
They are just good at what they do and very helpful.
Laura on 04/04/2021
Get surveyors quotes
14B Chequer Street
Get quotes for:
Cookies for this website are disabled. Press OK to active them.
We have placed cookies on your device to help make this website better.
You can use this tool to change your cookie settings. Otherwise, we’ll assume you’re OK to continue.
Some of the cookies we use are essential for the site to work.
We also use some non-essential cookies to collect information for making reports and to help us improve the site.
To control third party cookies, you can also adjust your browser settings.
Cookies for this website are disabled. Press the below button to active them.