RICS Level 3 Building Survey Tarset

The Tarset area presents unique challenges that our inspectors encounter regularly. Properties in this part of Northumberland frequently feature traditional sandstone masonry, which while durable, can suffer from weathering, mortar degradation, and water penetration over time. The slate roofs common to the region require specialist assessment, as slipped or broken slates can lead to significant water damage if left unaddressed. Our inspectors have identified numerous issues with older stonework during surveys in the area, particularly where traditional lime mortar has been replaced with cement-based mortars that trap moisture.

Many properties in and around Tarset sit on or near slopes where glacial deposits including Boulder Clay create potential for ground movement. Our inspectors pay particular attention to properties in areas where historical landslipping has been documented, such as near Tarset Castle, where active slope instability poses ongoing risks to the Scheduled Monument and Grade II* Listed building. The combination of older construction methods and challenging topography means that a comprehensive survey provides invaluable protection for your investment. We have seen properties along the Tarset Burn corridor where drainage issues have caused significant deterioration to supporting walls.

Properties in the Tarset area also include numerous older farmsteads and converted agricultural buildings that may have been modified over the years. These buildings often feature traditional construction techniques that differ significantly from modern building standards, and our assessors are trained to identify potential issues arising from past alterations, additions, or non-standard building methods. The conversion of agricultural buildings to residential use is common in this rural parish, and we regularly assess the structural implications of these changes.

• Thorough visual inspection of all accessible areas
• Detailed assessment of structural elements
• Identification of defects and their likely causes
• Clear reporting with prioritised recommendations

The traditional buildings of Tarset and the surrounding parish showcase the regional building heritage, with sandstone quarried locally from Lanehead forming the primary structural material. This stone, while inherently strong, requires ongoing maintenance to prevent deterioration, particularly in exposed positions where frost action can cause surface spalling. Our inspectors assess the condition of stonework carefully, noting any signs of erosion, cracking, or displacement that might indicate structural movement. We have surveyed numerous properties where original sandstone has suffered from decades of exposure to Northumbrian weather patterns.

The slate roofing that dominates the local skyline presents its own set of considerations. Many roofs in the area will be decades or even over a century old, and while natural slate is exceptionally durable, the fixings, battens, and underlying structure can deteriorate over time. Our surveyors examine roof spaces where accessible, assessing the condition of timbers, insulation, and ventilation, while also checking for evidence of past or current leaks that might have caused damage to the internal structure. We frequently find issues with flashing details around chimneys and valleys that have allowed water ingress over the years.

Properties within or adjacent to the Northumberland National Park face additional considerations regarding planning constraints and building regulations. The strict controls aimed at preserving the character of the park mean that many alterations and repairs require listed building consent or planning permission. Our surveyors understand these constraints and can flag any apparent unauthorized modifications that might affect your ability to undertake future works. This is particularly relevant for properties like Tarset Castle, which is not only Grade II* Listed but also appears on the English Heritage Buildings at Risk Register due to ongoing structural challenges.

• Sandstone masonry condition assessment
• Slate roofing and roof space inspection
• Drainage and damp assessment
• Evaluation of structural movement indicators

The Tarset area has a historical association with coal mining, including documented drift mines at locations such as the Comb near Tarset. While active mining ceased decades ago, the legacy of these operations can still affect properties built above or near old mine workings. Ground subsidence related to historical mining can manifest as cracks in walls, uneven floors, or doors and windows that no longer close properly. Our surveyors have identified signs of minor ground movement in several properties in the area that appear related to historical mining activity.

Our Level 3 surveyors are trained to identify the signs of potential mining subsidence and can recommend appropriate specialist investigations where concerns are identified. This might include reviewing historical mining records or commissioning a specific mining risk report from specialist providers. Given that properties in the Tarset valley can command significant prices, with the highest recent sale reaching £860,000, identifying any mining-related issues before completion can save substantial expense and worry later. We include assessment of mining risk as standard in our Level 3 surveys for properties in this area.

The local geology also includes areas where glacial deposits create potential for clay shrink-swell behaviour, particularly where the underlying clay is affected by changes in moisture content. The Till (Boulder Clay) deposits documented in the area around Tarset Castle can expand and contract with moisture variations, potentially affecting foundations. Properties with trees or vegetation close to foundations may be particularly susceptible, and our inspectors assess the relationship between the property and its surroundings to identify any potential issues. We also note that active landslipping has been identified on the North slope at Tarset Castle, where surface drainage and groundwater seepage can soften debris and generate translational slides.