RICS Level 3 Building Survey in Cymer and Glyncorrwg

Properties in the Cymer and Glyncorrwg area present unique challenges that our RICS Level 3 Survey specifically addresses. Many homes in the Afan Valley were built during the coal mining era, using traditional Welsh construction methods that differ significantly from modern buildings. The predominant housing stock includes period properties built between 1800 and 1911, featuring solid walls rather than cavity wall insulation, suspended timber floors, and traditional timber roof structures. These construction methods, while durable, require expert assessment to identify age-related deterioration and historical modifications that may have compromised structural integrity.

The local geology presents another critical factor. Cymer and Glyncorrwg sit within the South Wales Coalfield, where historical mining activity has left a legacy of potential subsidence risks. Properties in this area may experience movement due to historic mine workings, and our surveyors specifically assess foundation conditions, crack patterns, and signs of structural stress that could indicate mining-related subsidence. This is particularly important for properties in lower-lying areas near the River Afan, where flood risk combines with ground stability concerns to create complex property conditions. We examine walls for characteristic patterns of mining subsidence, including vertical cracks, stepped cracking around door and window openings, and any evidence of differential settlement between different parts of the building.

We also examine the common defects found in the local housing stock. Damp issues are prevalent in older properties with solid walls, particularly where original damp-proof courses have failed or been breached by historic renovations. The render and pebbledash finishes common on properties in the area can trap moisture if they have become cracked or deteriorated, leading to penetrating damp. Slate roofs, while traditional and attractive, require careful inspection for slipped tiles, damaged flashings, and deterioration to ridge pointing. Timber defects including woodworm and both wet and dry rot affect floor joists, roof timbers, and window joinery throughout the area, particularly in properties where ventilation has been restricted by modern modifications. Our detailed reports provide specific recommendations for addressing these issues, with cost estimates that allow you to budget for necessary repairs.

The Afan Valley's terrain creates additional environmental considerations for property buyers. Properties located at the bottom of slopes may be susceptible to surface water flooding during heavy rainfall, while those near the River Afan face potential fluvial flood risk. Our surveyors inspect exterior areas for signs of previous flooding, water staining on walls, and the condition of any drainage systems. We also assess the property's proximity to watercourses and advise on necessary investigations or insurance considerations. Given that house prices in Cymmer have fallen by around 20% over the last year according to recent data, obtaining a comprehensive survey is particularly important to ensure you are making a sound investment in a market where properties may require renovation or remedial work.

• Mining subsidence assessment
• Damp and condensation investigation
• Slate roof condition report
• Timber defect identification
• Structural movement analysis
• Renovation requirement recommendations
• Flood risk assessment
• Drainage system inspection

The construction methods used in Cymer and Glyncorrwg properties reflect the local availability of materials and traditional building practices. Many properties feature local stone or brick walls, often rendered or pebbledashed to protect against the Welsh weather. The use of local stone was particularly common in the Victorian and Edwardian periods when many of the area's terraces and semi-detached houses were built to accommodate workers in the coal mines. Roofs are predominantly slate, sourced from the historic Welsh slate quarries that once dominated the region. Understanding these construction methods helps our surveyors identify specific defect patterns that are common to properties in this area.

Our Level 3 Survey examines each element of the property's construction in detail. We assess the condition of solid walls, checking for cracking, bulging, or signs of movement that could indicate structural problems. The solid wall construction found in most period properties in the area lacks the cavity that modern buildings have, meaning that any breach in the external skin can allow water penetration directly into the internal structure. We examine the render and pebbledash finishes for cracks, delamination, and signs of previous repair that may indicate ongoing issues.

Roof inspections include the covering material, flashings, valleys, and structural timbers. Welsh slate roofs, while durable, typically have a lifespan of 80-100 years, and many roofs in the area will be approaching or beyond this age. We examine the condition of individual slates, checking for cracking, slippage, and deterioration at ridges and valleys. The structural timbers within the roof space are inspected for signs of woodworm, wet rot, or dry rot, which are common issues in properties where condensation has built up due to inadequate ventilation.

We examine gutters and downpipes for damage or blockages that could lead to water penetration. The steep terrain of the Afan Valley can result in high volumes of water running off roofs during heavy rainfall, and blocked or damaged gutters can quickly lead to water overflowing and penetrating the walls below. Floor structures, whether suspended timber or solid concrete, are assessed for signs of rot, insect damage, or movement. In properties with suspended timber floors, we lift accessible inspection covers where possible to examine the condition of floor joists and supporting walls.

Properties in the Afan Valley face specific environmental considerations that our survey addresses. The River Afan runs through both Cymer and Glyncorrwg, creating potential flood risk for properties in low-lying positions or those with gardens bordering the river. Our surveyors inspect exterior areas for signs of previous flooding, water staining on walls, and the condition of any flood defences or barriers. We note the proximity of the property to watercourses and advise on necessary investigations or insurance considerations. Properties that have previously flooded may have residual damage to walls, floors, and plaster that is not immediately visible, and our inspection can identify these issues.

Surface water flooding represents an additional risk in this valley location. The steep terrain surrounding the Afan Valley can lead to rapid water runoff during heavy rainfall, and properties at the bottom of slopes may be susceptible to water pooling. We examine the property's drainage systems, including gutters, downpipes, and any land drainage, to assess whether these are adequate to manage surface water. We also look at the ground levels around the property and the direction of fall away from the building. Our report includes specific advice on any improvements that may be required to reduce flood risk.

The local geology also warrants consideration. While comprehensive soil data for Cymer and Glyncorrwg is limited, the underlying Carboniferous geology includes shales and sandstones that can produce clay-rich soils in certain locations. These clay soils are susceptible to shrink-swell movement during periods of wet and dry weather, which can affect foundations. Our surveyors look for signs of foundation movement, including cracking patterns and door/window operation, that might indicate ground instability. The combination of potential mining subsidence and clay shrink-swell means that properties in this area may experience movement that requires careful assessment.

Given the recent trends in the local property market, with prices in Cymmer falling by around 20% over the last year, buyers should be particularly vigilant about the condition of properties they are considering. Lower prices may make properties more affordable, but they may also reflect underlying issues that require significant investment in repairs and renovation. A RICS Level 3 Survey provides the detailed information you need to make an informed decision and to budget appropriately for any works that may be required.