RICS Level 3 Building Survey in Davidstow

Davidstow’s housing stock is quite unlike the usual UK residential mix, and that matters for anyone buying there. Across the village and the wider parish, detached homes dominate, and many are old farmhouses or converted agricultural buildings built in traditional Cornish ways. Thick stone walls, slate roofs and sash windows are common, which means our surveyors need a sound grasp of traditional building physics. A Level 3 survey from our team looks closely at those details, especially how they cope with weather resistance and thermal efficiency under modern expectations.

There is another layer to this area, and it sits beneath the ground. Davidstow lies on Devonian and Carboniferous sedimentary strata, with the Tintagel Volcanic Formation under much of the parish and granite intrusions from Bodmin Moor nearby. That can mean different ground conditions from those seen in other parts of the UK, so our inspectors watch for settlement, subsidence or movement that may relate to the geology. River flooding is generally low risk, but surface water runoff can still matter because of the local topography and the high rainfall typical of North Cornwall. Several boggy hollows in the parish hold water in wet weather, and nearby foundations can feel the effect.

Quite a few homes around Davidstow were built with materials and methods that are now classed as non-standard. Lime mortar pointing, local granite stonework and historic roof slating all call for specialist judgement if they are to be assessed properly. Our surveyors recognise these as part of Cornish heritage, not as defects in themselves, though they do need the right kind of maintenance. We explain how to look after those original features while still dealing with any genuine structural issues that come to light during our inspection. That becomes especially relevant where a property is listed, or sits within the setting of listed buildings.

Because Davidstow is so rural, many homes rely on private water supplies, septic tanks or bespoke drainage rather than mains services. Our Level 3 Survey covers those visible and accessible systems, although we still advise buyers to arrange separate specialist checks for water quality and drainage performance. Near the Inny Vale holiday development, for instance, you may find timber-framed lodges or other specific build types, and those need an inspection approach that reflects how they were put together.

• Traditional stone wall construction
• Slate roofing systems
• Lime mortar pointing
• Historic window joinery
• Private water and drainage systems

Our work across North Cornwall has shown a few recurring issues that buyers in Davidstow should keep in mind. Damp and mould penetration is probably the most common, especially in older stone houses where wall breathability has been compromised by modern cement-based renders or tanking systems. Traditional Cornish buildings were designed to deal with moisture through evaporation, and if that process is blocked by unsuitable modern treatments, moisture can become trapped in the wall structure, damaging timber and creating possible health concerns for occupants. We often find non-breathable paints or cement render that are driving the damp problem on.

Roofing defects are another major concern in Davidstow. Slate roofs are common on older homes, and we frequently see slipped or missing slates, deteriorated lead flashings, and decay in the timber battens and rafters underneath. Many historic roofs in this part of Cornwall were built with pegged slate fixed to timber battens with nails that may have corroded over time. Our inspectors take these roofs seriously, because water coming through a defective roof can cause extensive internal damage long before it is obvious from ground level. Properties in exposed spots near the high ground of the parish may suffer more severe weathering from the prevailing Atlantic winds.

We also come across structural movement and cracking fairly often in the Davidstow housing stock. Homes on shallow foundations in older ground conditions may show settlement, particularly where drainage from neighbouring fields or shifts in soil moisture have affected the supporting soil. Our surveyors know how to separate ordinary age-related settlement from more serious ongoing movement that could call for structural work. We set out clearly what the cracking means, whether it looks active and what remedial action, if any, may be suitable. In some cases, we recommend monitoring the crack for months to see whether movement continues.

Holiday-let properties in the Davidstow area, including those at Inny Vale, can present a different pattern of defects from a traditional house. These timber-framed lodges often have issues linked to modular construction, such as movement at joins, problems with fittings and questions about the long-term durability of timber frame components in a coastal environment. If you are looking at a property for holiday rental, we can shape the inspection around the concerns that matter most for that type of purchase.

• Damp and mould in stone walls
• Slate roof deterioration
• Structural cracking and settlement
• Timber decay in roof voids
• Defective flashings and gutters
• Condensation in converted buildings
• Mundic concrete in post-1900 properties