RICS Level 3 Building Survey in BB2 2 Blackburn

Our RICS Level 3 Building Survey is the most comprehensive survey option available and is particularly valuable for older properties, non-standard construction, or buildings showing signs of structural movement. During the inspection, our surveyor examines the entire property externally and internally, including accessible roof spaces, sub-floor areas, and outbuildings. We check the condition of walls, floors, ceilings, doors, and windows, assessing both the main structure and secondary elements like kitchens and bathrooms.

For BB2 2 properties, our inspectors pay particular attention to issues common in the local housing stock. The area features a significant proportion of pre-1919 properties reflecting Blackburn's industrial heritage, alongside post-war semis and terraced homes from the mid-20th century. This mix means we regularly encounter damp problems in older properties, particularly rising damp or penetrating damp caused by failed damp-proof courses or inadequate ventilation. We also check for timber defects including wet rot, dry rot, and woodworm, which can affect properties with suspended timber floors common in this area.

The report includes a clear condition rating system: Property Rating 1 (No Repairs Required), Property Rating 2 (Repairs Recommended), Property Rating 3 (Repairs Required), and Property Rating 4 (Urgent Repairs). This system helps you prioritise works and budget accordingly. We also provide specific recommendations for further investigations if we discover issues that require specialist assessment, such as potential subsidence or significant structural movement.

Beyond the visual inspection, our surveyors will lift accessible covers to examine drains, check the condition of any boundary walls or fences, and assess the general site conditions including drainage and access. For properties with extensions or alterations, we verify where possible whether the work appears to have been carried out with appropriate planning permission and building regulations approval. If we identify any potential compliance issues, we'll flag these in our report so you can investigate further with the local authority.

• External walls and foundations
• Roof structure and covering
• Damp proof course and dampness
• Timber floors and joists
• Windows and doors
• Chimneys and flues
• Garages and outbuildings
• Drainage and gutters

Properties in BB2 2 reflect the industrial history of Blackburn, with the majority of homes built using traditional construction methods that our surveyors know intimately. The older Victorian and Edwardian terraced houses lining many of the residential streets were typically constructed with solid brick walls, red brick facades, and timber internal joists supporting wooden floorboards. These properties often feature slate roofing, which while durable, can deteriorate over time and require careful inspection of individual slates, mortar joints, and lead flashing around chimneys.

The post-war housing boom in Blackburn produced many semi-detached homes during the 1920s through to the 1970s, often built with cavity wall construction though some earlier properties may have solid walls. Understanding whether a property has cavity or solid walls is important for several reasons, including assessing insulation capabilities and identifying potential damp issues. Our inspectors know how to identify the construction type and what to look for when assessing each method.

Many BB2 2 properties feature suspended timber floors at ground level, which can be susceptible to rot and woodworm if ventilation is poor or dampness has taken hold. We inspect these areas carefully, checking the condition of joists, bearers, and floorboards. In contrast, some modern extensions or more recently built properties may have concrete floors, which present their own considerations for damp resistance and insulation.

The local geology also plays a role in how properties perform over time. The underlying Carboniferous rocks and glacial till (boulder clay) that characterise the Blackburn area can cause movement in foundations, particularly during periods of drought followed by wet weather. Our surveyors are trained to recognise the signs of this type of movement and can advise whether a specialist structural engineer's assessment is warranted.

Our team regularly identifies several recurring issues when surveying properties in BB2 2, and understanding these common defects helps you know what to expect from your survey report. Roofing problems feature prominently, with wear and tear on slate and tile roofs, failing leadwork around chimneys, and defective gutters causing water ingress. Many properties in this area have original roofs that, while still functional, are approaching the end of their serviceable life. Our surveyors check the pitch, covering material, flashing, and verges, noting any slipped tiles, cracked slates, or signs of previous repairs.

Damp-related issues are among the most frequently identified problems in BB2 2 properties, particularly in the older housing stock. Rising damp occurs when moisture from the ground travels up through brickwork due to a failed or non-existent damp-proof course, while penetrating damp results from water entering through defective walls, windows, or roof elements. In properties with solid walls, which are common among Victorian terraces in this area, condensation can also be an issue, especially in poorly ventilated bathrooms and kitchens. Our inspectors use moisture meters to identify affected areas and determine the likely cause.

Structural movement, though not widespread, does occur in BB2 2 properties. Minor cracking from settlement is common in older properties, but our inspectors are trained to distinguish between harmless age-related movement and more serious issues requiring attention. In areas with shrink-swell clay soils and mature trees, we pay particular attention to foundation conditions. The historical coal mining activity in the Blackburn area also means some properties may be in zones identified by the Coal Authority as requiring a mining report, and we will recommend this if we identify any indicators of potential mining-related subsidence.

Flood risk is another consideration for BB2 2 property buyers. While the area generally has low to medium surface water flood risk, properties in certain locations may have experienced past flooding. Our surveyors look for signs of water damage, dampness at low levels, and flood resilience measures. If we have concerns about flood risk, we'll recommend further investigation or appropriate searches. The River Darwen runs through parts of the wider Blackburn area, and properties near watercourses or in natural drainage paths deserve particular attention.

• Rising damp and penetrating damp
• Roof deterioration and leaks
• Timber rot and woodworm
• Structural cracking and movement
• Chimney defects
• Drainage issues
• Subsidence indicators
• Past flood damage