What issues are associated with Pre-Georgian properties?
Issues are mainly associated with how long ago these properties were built including, for example, degradation of materials and the fact that certain architectural improvements were not practised at the time of building and so these features have been added subsequently later, and perhaps with less than satisfactory workmanship.

You can often find weathering of the pointing to the chimneys, ridge tiles and perimeter.

Flashings are often replaced with a cement wedge, where it is advisable if possible to return it to its original lead material.

Thatched roofs require regular maintenance. Click to get a thatched roof survey quote.

These vary enormously and often they have been refurbished, using bricks for example. Original stone-builds may last well, but pointing may be an issue and settlement may make lines crooked.

Damp proof courses were not commonly laid until the 1770s, after this period, so they will have been added during periodic improvements of these kinds of properties. Bad workmanship in particular can mean rising damp problems.

Lintels and frames can rot over the years and replacements may be subject to fault.

Foundations are often entirely absent. Combining this with inadequate drainage and faulty pipes can mean properties are subject to subsidence, which will be exacerbated in areas of predominantly clay soil. If you are thinking of buying a property built in this era, if you instruct a chartered surveyor to carry out a home buyers survey for you, they may recommend you get a structural engineer to carry out a subsidence survey.
Also, the original build may not have had any dedicated drainage features or at best very primitive ones. More than likely, drainage systems have been added over time, with refurbishments. These often degrade, even if they were well enough built in the first place.

Problems can arise because original ceiling work is constructed of lath and plaster but refurbished sections may be of plasterboard. Where these combine, there can be cracking.&

While a property may have been very well-built originally, subsequent refurbishments may not be and may contribute to a plethora of issues. We always advise therefore that you instruct a skilled, experienced RICS surveyor to examine these properties for soundness if you are thinking of buying one.
What sort of home buyers survey would this property require?
Given the age of these properties and the materials involved, if you are considering buying one, you would be strongly advised to instruct a chartered surveyor to carry out a Building Survey or Full Structural Survey on it.
Your building surveyor, depending on their findings, may also recommend you get a timber survey and a thatched roof survey. Thatched roofs demand a lot of love, needing repairs and maintenance and replacement every 30-50 years.
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