RICS Level 2 Survey in Bontnewydd

Bontnewydd presents a diverse housing landscape that reflects its evolution from a small agricultural village into a commuter settlement for Caernarfon. The village has seen significant development in recent years, including the Cae Capel development by Watkin Jones Homes offering 3 and 4-bedroom houses, and the Lôn Cefnwerthyd estate which added 29 new homes including affordable housing. However, much of the existing housing stock consists of older properties where our Level 2 surveys frequently identify issues requiring attention. The village supports a population of approximately 1,251 residents across nearly 600 households, with local amenities including Ysgol Bontnewydd, The Newborough Arms pub, and Gypsy Wood Park outdoor attraction.

The geological conditions around Bontnewydd merit particular attention from anyone purchasing property in the area. The area sits on glacial sediments deposited during the Devensian period, and while these sands and gravels are generally suitable for construction, the potential presence of clay-rich soils creates a risk of shrink-swell movement. This is especially relevant for older properties with shallow foundations, a common characteristic in the village given its collection of listed buildings including early 19th-century farmhouses like Cefn-y-coed-uchaf. Our surveyors are trained to identify the signs of foundation movement that may result from these soil conditions, including cracking patterns, door and window misalignment, and uneven floor levels.

The geological history of Gwynedd also includes a legacy of metal mining activity that, while historically significant, does not typically present modern subsidence risks in the Bontnewydd area specifically. However, our inspectors are aware of regional mining history and will note any indicators of historical mining activity that might affect specific properties. The predominant building materials in the area reflect its North Welsh heritage - Victorian bricks, Welsh slate tiles, and structural timber are commonly found, with older farmhouses constructed from rubble stone with slate close-eaved roofs and stone end stacks.

Our inspectors are experienced in assessing properties across Bontnewydd's varied housing stock, from modern family homes to Victorian and Edwardian properties that may feature solid walls without modern damp-proof courses. We understand how local construction methods and materials perform in the Welsh climate, and we know what to look for when inspecting homes in this area. The proximity to the Afon Gwyrfai estuary also means that some properties may be affected by elevated groundwater levels or surface water drainage issues, particularly during periods of heavy rainfall.

• Victorian and Edwardian properties requiring damp assessments
• Modern developments needing defect identification
• Listed buildings requiring careful inspection
• Flood-affected properties needing specialist evaluation

Bontnewydd has a significant history of flooding from the Afon Gwyrfai and Afon Beuno rivers, particularly affecting the Glanrafon and Dôl Beuno estates. Nine properties were badly affected in November and December 2015, with residents experiencing devastating damage to their homes and possessions. Since then, the community has worked closely with Gwynedd Council and Natural Resources Wales to address these recurring flood events. In March 2025, a £2 million flood defence upgrade was announced, with work scheduled to start that year and complete in 2026, including new defences on the Afon Beuno by the Dôl Beuno estate and an upgrade to the existing flood defence wall on the Afon Gwyrfai adjacent to Glanrafon.

When surveying properties in at-risk areas, our inspectors pay particular attention to flood damage indicators, damp penetration, and the condition of ground-floor elevations. We look for tell-tale signs such as water staining on walls, tide marks, warped flooring, and deteriorated plaster that may indicate previous flooding events. We also assess the effectiveness of any existing flood mitigation measures and advise on potential improvements. Properties in the designated flood risk zones should be carefully evaluated for their long-term suitability, particularly if you are considering ground-floor extensions or conversions.

The wider Gwynedd area faces potential coastal erosion risks at locations like Dinas Dinlle, though Bontnewydd itself is more affected by riverine flooding than coastal erosion. The Afon Gwyrfai flows into Foryd Bay, and properties near the river estuary may experience tidal influences and elevated moisture levels. Our survey reports will clearly flag any flood risk concerns identified during the inspection, allowing you to make an informed decision about your purchase and potentially negotiate appropriate reductions or warranties.

Based on our experience surveying properties in and around Bontnewydd, several recurring issues feature in our reports. Damp problems are particularly common, especially in older solid-walled Victorian and Edwardian properties where modern damp-proof courses may be absent or compromised. The Welsh climate, with its regular rainfall throughout the year, exacerbates penetrating damp through cracked brickwork, damaged render, and failing window seals. Our surveyors use thermal imaging and moisture meters to identify damp-affected areas that might not be visible to the untrained eye. Rising damp is frequently identified in period properties where the original damp-proof course has failed or was never installed, particularly in properties with solid brick or stone walls.

Roofing defects represent another significant finding category in Bontnewydd property surveys. Many older properties in the area feature original slate roofs that, while historically appropriate and characteristic of the region, may have reached the end of their serviceable life. Welsh slate is renowned for its durability, but even these roofs require eventual replacement. Missing or broken tiles, degraded lead flashing, and inadequate insulation are frequently identified issues in our surveys. For properties in the Cae Capel development or other newer builds, we check for construction defects that may have emerged since the properties were completed, including issues with window installations, roof membrane damage, and any signs of settlement cracking.

Structural concerns, including cracking, uneven floors, and misaligned door frames, occasionally feature in our reports for older properties. These can indicate foundation movement, possibly related to the shrink-swell behaviour of clay soils during periods of wet and dry weather. While often minor, such issues require professional assessment to determine whether they represent genuine subsidence or are merely age-related movement that can be monitored. Our surveyors will identify the nature and pattern of any cracking observed and provide appropriate recommendations, which may include further investigation by a structural engineer if significant movement is suspected.

Electrical and energy efficiency issues are also commonly identified in our Bontnewydd surveys. Many older properties feature outdated electrical installations that do not meet current regulations and may pose safety risks. We note the condition of consumer units, wiring age, and the presence of adequate earthing. Additionally, properties built before modern energy efficiency standards often lack adequate insulation, resulting in higher heating costs and poorer thermal comfort. Our report will highlight any significant electrical concerns and provide an energy efficiency assessment that helps you understand the potential costs of bringing the property up to current standards.

• Rising and penetrating damp in period properties
• Slate roof deterioration and missing tiles
• Foundation movement and structural cracking
• Outdated electrical installations
• Timber decay and woodworm infestation
• Inadequate insulation and energy efficiency