RICS Level 3 Survey in Ruanlanihorne

Ruanlanihorne's housing stock differs sharply from that of a typical UK residential area. With very little 20th-century housing and most properties dating from the 19th century or earlier, homes here often rely on traditional methods that need specialist knowledge to assess properly. Our inspectors examine granite stone walls, cob construction, and traditional slate roofing systems that define houses across the area. A recent property on Ruan High Lanes sold for £810,000, which shows the premium buyers place on historic Cornish character homes, yet purchases at that level still call for a proper structural understanding.

Specific environmental pressures shape the way we approach properties in Ruanlanihorne, and our Level 3 Surveys take them into account. The village sits within a flood warning area for the South Cornwall coast, with low-lying land along the River Ruan and River Fal at particular risk during high tides and storm surges. Our inspectors look for flood damage potential, signs of previous water ingress, and the effectiveness of any flood mitigation already in place. That matters most for properties near the Saltings and Sett Bridge, where inundation has been documented.

The geology around Ruanlanihorne also deserves close attention. Many traditional homes here are built with cob, a mix of clay, sand, straw, and water that insulates well but can be prone to moisture-related movement. Our Level 3 Surveys include a careful look at wall stability, crack patterns, and any earlier movement that might point to subsidence or heave. We also consider how those traditional materials sit with the local soil conditions, so the risk picture is as clear as possible.

According to the Shoreline Management Plan for Ruan Lanihorne, inundation of saltmarsh is likely to lead to a shift into mudflat habitat as sea level rises. That natural change continues to affect flood risk for homes near the quay area, so our surveys take those long-term environmental factors into account when we assess properties in exposed locations.

• Stone wall condition assessment
• Slate roofing inspection
• Flood risk evaluation
• Cob and render condition analysis
• Structural movement monitoring
• Listed building considerations

Knowing how buildings were put together in Ruanlanihorne is central to an accurate assessment. Traditional houses here largely use granite from local quarries in Ruan Woods, a material prized for its durability and its resistance to Cornwall's harsh coastal weather. Cornish granite ranges in colour from light grey to pink, and our inspectors can spot variations that point to different sources or later restoration work. Homes built from it, including the historic farmsteads scattered through the parish, reflect centuries of local building skill.

Slate roofing is a defining feature of the Ruanlanihorne skyline, with slates traditionally hung on stone walls to keep out Cornwall's wind and rain. The system works well when maintained, though it needs close inspection of individual slates, fixings, and the lead flashing at roof junctions. Our inspectors check these parts methodically and note any deterioration that could let water in.

Cob construction is another important part of the local building heritage. Farmsteads outside the village centre often combine stone with rendered cob, while render on stone walls is especially common in 19th and early 20th-century residential buildings. That finish can hide problems beneath the surface, so our inspectors look carefully at its condition and watch for movement or damp penetration behind it.

The quay has influenced building materials as well. Timber was historically brought into Ruanlanihorne through the quay, and that shaped the use of substantial structural elements in traditional buildings. Our surveyors assess those timber components with care, taking account of the property's age and any deterioration that may have built up over decades in Cornwall's damp climate.

Ruan Lanihorne Parish contains 24 listed buildings and structures, an exceptional concentration of heritage for such a small community. Among them is St Rumon Church, a Grade I listed building dating back to 1321, which dominates the village skyline and speaks to the area's ecclesiastical history. Sett Bridge, a historic crossing on the River Ruan, also has listed status, underlining its place in local infrastructure. Trethella Farmhouse, Grade II listed, is a fine example of the traditional farmstead architecture found across the surrounding countryside.

Our inspectors have extensive experience with listed properties and understand what that means for both current condition and future renovation plans. When we survey a listed home in Ruanlanihorne, we look not only at structural integrity but also at how its historic features shape its character and value. We identify the elements that contribute to the listing and explain the preservation requirements that follow from them.

Properties within the Cornwall Area of Outstanding Natural Beauty face planning controls in addition to listed building rules. The AONB designation, which covers the whole Ruanlanihorne area, means that external alterations, extensions, and even some maintenance work may need planning permission. Our survey reports draw attention to these points, so you can see the restrictions that may affect future plans for the property.

The 20th-century housing stock in Ruanlanihorne is very limited, and much of the recent development has been redevelopment or conversion of existing buildings rather than new build schemes. So when you buy here, you are often taking on a property with clear historical pedigree, one that needs informed maintenance and, in some cases, specialist conservation work.

From our surveying work across the Ruanlanihorne area, we have seen a number of recurring defects that buyers should keep in mind. Traditional Cornish stone properties are durable, but mortar between the stones can degrade, especially in exposed spots where wind and rain have worn the pointing away over decades. Our inspectors examine the pointing closely, identify any stones that have shifted, and judge whether water is entering through the wall structure.

Slate roofs are characteristic of the area and generally long-lasting, but they still need checking for damaged slates, lead flashing deterioration, and ridge tile movement. Cornwall gets significant wind exposure, particularly in winter storms, and loose or slipped slates are a common finding. Where it is safe and practicable, our inspectors go into roof spaces to inspect rafters, sarking, and insulation.

Timber defects are another important concern in Ruanlanihorne properties. Traditional buildings include substantial timber elements such as ceiling beams, floor joists, and structural posts. Our survey looks for woodworm activity, wet rot, and dry rot that can weaken structural integrity. With water nearby and Cornwall's damp climate, timber condition is a key part of the inspection.

Older drainage systems can also be troublesome. Many homes in the area still have original drainage arrangements that may no longer meet current standards, or that may have been affected by ground movement. We inspect accessible drainage components, note defects, and recommend further investigation where needed, especially if surface water or foul water systems appear inadequate.