RICS Level 3 Building Survey in Erith (DA18)

The RICS Level 3 Survey is specifically designed for properties in Erith that are larger, older, or of unconventional construction. Unlike basic surveys, this detailed inspection examines the structural integrity of the building, identifying defects, their cause, and their severity. Our surveyors will assess walls, floors, roofs, foundations, and all major structural elements, providing you with a clear understanding of any issues that may require attention now or in the future. We examine both the visible elements and those that can be reasonably accessed, including loft spaces, under-floor voids where accessible, and outbuildings.

For properties in DA18, our surveyors pay particular attention to the common issues affecting the local housing stock. With 15.6% of properties pre-1919 and 18.2% built between 1919-1945, many homes in Erith require careful assessment for age-related defects such as deteriorating timber, worn roofing, and historical structural movement. The survey will also identify any issues related to the local geology, including the shrink-swell risk associated with the clay formations underlying this area. Properties in the Erith area are built on geology from the Thanet Formation and Lambeth Group, which contain significant clay deposits that expand and contract with moisture changes.

The resulting report provides a thorough condition rating for each element of the property, from the roof down to the foundations. It includes specific recommendations for repairs, estimates of likely costs where possible, and prioritisation of issues based on their urgency. This level of detail is invaluable for properties in Erith, where the mix of Victorian terraces along Erith High Street, mid-century semi-detached homes in residential roads, and new-build developments each present their own unique challenges. The report uses the RICS condition rating system, giving you clear red, amber, or green indicators for each element inspected.

• Structural walls and foundations
• Roof structure and covering
• Floors, ceilings, and stairs
• Windows and doors
• Damp and timber condition
• Drainage and gutters
• External finishes
• Electrical and plumbing visible evidence

Understanding the construction methods used in Erith helps explain why certain defects are common and how our surveyors identify them. The Victorian and Edwardian terraces that line many of Erith's historic streets were typically constructed with solid brick walls, often using London stock brick or Fletton brick. These solid walls, while durable, lack cavity insulation and can be susceptible to penetrating damp, particularly where render or pebbledash finishes have deteriorated. Our surveyors carefully examine the condition of these external finishes and the walls beneath, looking for signs of moisture penetration that could lead to internal damp problems.

Properties built between 1945 and 1980, which make up 36.5% of the housing stock in DA18, were constructed using cavity wall construction methods. While this represents an improvement over solid wall buildings, many of these properties were built with galvanised steel cavity wall ties that can corrode over time, causing the outer leaf of brickwork to become unstable. This is a particular concern in semi-detached houses and terraced properties where wall ties failure can lead to bulging or separated brickwork. Our surveyors specifically inspect for signs of wall tie corrosion, including rust stains on brickwork and mortar displacement.

The newer developments in DA18, including The Quarry, Park East, Erith Park, and Riverside Gardens, have been built using modern construction methods with concrete beam-and-block floors and brick or render external walls. While these properties are generally in better structural condition than older homes, they can still have defects related to workmanship, including poorly installed windows, inadequate insulation in walls and roofs, and drainage issues. Our surveyors apply the same rigorous inspection standards to new-build properties, ensuring that any defects are identified before you complete your purchase.

The DA18 area has a diverse housing stock, with 32.7% terraced properties, 26.6% semi-detached homes, 26.3% flats, and 14.4% detached houses. This variety means that different property types present different challenges. Terraced properties from the Victorian and Edwardian periods often suffer from solid wall construction issues, including penetrating damp and inadequate insulation. The pre-1919 properties in particular may have historic alterations that were not carried out to current building regulations, including removed chimney breasts, altered window openings, and removed internal walls. Our surveyors are experienced in identifying these historic alterations and assessing their impact on structural integrity.

Mid-century properties built between 1945 and 1980, which make up 36.5% of the housing stock, commonly exhibit issues with roof coverings reaching the end of their lifespan, original windows requiring replacement, and the deterioration of cavity wall ties. Many of these properties were constructed with materials and methods that, while acceptable at the time, would not meet current standards. Our surveyors are experienced in identifying these period-specific defects and assessing their current impact on the property. We have found that roof felt in many 1960s and 1970s properties is now failing, leading to loft insulation becoming wet and timber decay starting in roof structures.

The newer properties in DA18, including those from The Quarry, Park East, Erith Park, and Riverside Gardens developments, generally require less extensive investigation but can still benefit from a Level 3 Survey. Even new-build properties can have defects arising from rushed construction, poor workmanship, or design issues. The detailed inspection ensures that any problems are identified before you commit to the purchase. Common issues we find in newer properties include inadequate ventilation leading to condensation, poorly fitted windows and doors, and drainage systems that have not been properly compacted, leading to subsidence of patios and driveways.

• Subsidence from clay shrink-swell
• Roof defects and tile slippage
• Rising and penetrating damp
• Timber rot and woodworm
• Drainage issues and blockages
• Structural movement and cracking
• Window and door deterioration
• Defective leadwork and flashing