RICS Level 3 Building Survey in Keynsham

Our RICS Level 3 Building Survey provides a thorough examination of all visible and accessible elements of your property. In Keynsham, where housing ranges from solid-wall Victorian cottages built with local Bath stone to modern developments like The Meadows and Somendale, our surveyors adapt their approach to suit each property's unique construction. The survey includes a detailed assessment of the roof structure, walls, floors, ceilings, doors, windows, damp proofing, insulation, and drainage systems.

We specifically examine areas prone to problems in Keynsham properties. Given the local geology featuring Lias Group clay soils with moderate to high shrink-swell risk, our surveyors pay particular attention to foundations, subsidence indicators, and any signs of movement. We check for cracking patterns that might indicate heave or settlement, examine the condition of lintels and structural beams, and assess how trees or vegetation might be affecting the property's stability.

The survey also covers environmental risks specific to Keynsham's location on the River Avon and River Chew. We identify flood risk areas, assess any existing flood damage or mitigation measures, and evaluate the property's vulnerability to water ingress. For properties in or near the Conservation Area, we note any features of historical significance and advise on maintenance requirements that may affect your plans for the property.

• Roof structure and covering
• Walls, dampness and structural integrity
• Foundations and signs of subsidence
• Windows, doors and joinery
• Plumbing and electrical condition
• Fire safety and insulation
• External areas and drainage
• Legal implications and recommendations

Keynsham's housing stock presents unique challenges for our surveyors. The predominant construction materials include local Bath stone and brick for older properties, while newer developments use modern brick, render, and sometimes timber cladding. Understanding these materials is essential for identifying defects. For instance, solid-wall properties built before 1919 (representing 18% of the local housing stock) often lack cavity walls and may have original damp-proof courses that have failed over time. These properties frequently show signs of rising damp, especially where ground levels have been raised over decades or vegetation has grown too close to external walls.

The geological conditions beneath Keynsham deserve particular attention during any structural survey. The underlying Lias Group bedrock includes clay, limestone, and mudstone, with the Charmouth Mudstone Formation creating potential shrink-swell behaviour. This means properties with shallow foundations, particularly those with nearby trees such as oaks, poplars, or willows, may show signs of movement or cracking related to soil expansion and contraction. Our surveyors are trained to identify these patterns and assess their severity, looking specifically at crack widths, crack patterns, and the relationship between cracks and structural elements like lintels and joist ends.

For properties in the Keynsham Conservation Area or those listed buildings such as the Church of St John the Baptist (Grade II*) or Keynsham Abbey remains (Grade I), our survey includes assessment of historical features and any alterations that may require Listed Building Consent. Understanding these constraints is vital before undertaking any renovation work, as failure to obtain proper permissions can result in significant legal and financial consequences. We note original features such as sash windows, period fireplaces, and decorative plasterwork that may affect the property's value and your intended modifications.

• Properties over 100 years old
• Listed buildings and Conservation Area homes
• Properties near rivers or in flood zones
• Homes showing visible cracking or movement
• Properties with non-standard construction
• Large detached homes with extensive grounds

Based on our experience surveying properties across Keynsham, several defect types appear frequently in local homes. Damp problems are particularly common in the older housing stock, where solid-wall construction combined with failed or missing damp-proof courses allows moisture to rise through brickwork and stone. Penetrating damp is also prevalent in properties with weathered roof coverings, damaged lead flashing, or degraded pointing to external walls. Our surveyors use moisture meters and thermal imaging equipment to identify the extent and cause of damp issues before recommending appropriate remediation.

Timber defects represent another significant category of problems we identify in Keynsham surveys. Wet rot and dry rot affect roof structures, floor joists, window frames, and door frames throughout the town, particularly in properties where condensation has been allowed to develop or where plumbing leaks have gone unnoticed. Woodworm activity is frequently found in older properties with original timber elements, and while some historic infestation may be inactive, our surveyors assess whether any current activity poses a risk to structural integrity. We examine all accessible timber using probes and visual inspection techniques to provide accurate findings.

Structural movement and cracking require careful assessment in Keynsham due to the local clay soils. While some minor cracking is normal in older properties due to thermal movement and minor settlement, our surveyors distinguish between acceptable hairline cracks and more serious indicators of foundation movement. We examine the pattern, width, location, and direction of cracks, noting whether they pass through masonry or follow mortar joints, and whether they are accompanied by other signs of movement such as sticking doors or uneven floors. Where significant concerns exist, we recommend further investigation by a structural engineer before you commit to the purchase.

Asbestos-containing materials remain a concern in properties built before 2000, which represents 71.3% of Keynsham's housing stock. Our surveyors identify suspected asbestos in accessible locations such as Artexed ceilings, boiler flue insulation, floor tiles, and external soffit boards. We do not remove samples but instead mark the location and recommend further investigation by a licensed asbestos surveyor before any renovation work commences. This is particularly important for properties purchased for renovation, where disturbed asbestos fibres can pose serious health risks.

Flood risk is a material consideration for properties in Keynsham due to the town's position on the River Avon and River Chew. The Environment Agency's flood maps show several areas along these river valleys with heightened risk, particularly in low-lying parts of the town near the river channels. Properties in these areas may have experienced historical flooding, and our surveyors check for flood marks, water staining, and signs of damp at lower levels. We also assess any flood mitigation measures such as barriers, pumps, or raised electrical fittings that may be present.

Surface water flooding represents an additional risk in Keynsham, particularly during periods of heavy rainfall when drainage systems can become overwhelmed. Our surveyors examine the property's surroundings for indicators of surface water flood risk, including the gradient of land, the condition of drainage ditches and culverts, and the proximity of the property to natural watercourses. We also assess the effectiveness of existing drainage systems, including guttering, downpipes, and soakaways, which are essential for managing surface water away from the building structure.

The underlying geology also presents considerations for ground stability beyond foundation movement. While Keynsham is not generally associated with significant historical coal mining like other parts of the South West, localized historical activity such as stone quarrying may have occurred in some areas. Our surveyors consider the property's location and any available historical mapping when assessing ground stability risks. For properties on or near former quarry sites, we recommend appropriate specialist investigation to confirm ground stability before purchase.