RICS Level 2 HomeBuyers Survey in Horley

Horley's housing stock presents a diverse range of properties, each with their own potential issues. The town has seen significant growth with new developments like Westvale Park delivering over 1,500 new homes, while the older areas around the town centre feature Victorian and Edwardian properties dating back to the late 19th century. Our surveyors understand the specific challenges that properties in this area face, from the risks associated with London Clay foundations in older homes to potential issues in newly constructed properties that may not have fully settled. Properties in developments such as The Acres on Langshott Lane or Thomas Waters Way near Haroldslea Drive represent the newer end of the spectrum, while terraces along Brighton Road and Victoria Road represent the traditional housing stock that characterises much of the town centre.

The geology beneath Horley is particularly important to understand. The area sits on London Clay, which is highly susceptible to shrink-swell behaviour. This means properties with shallow foundations, common in homes built before the 1970s, can experience movement as the clay expands and contracts with moisture levels. This ground movement can lead to subsidence, cracks in walls, and structural issues that a Level 2 survey will identify and assess. Our surveyors know exactly what to look for and will provide you with a clear evaluation of any structural concerns. The British Geological Survey identifies shrink-swell as one of the most damaging geohazards in Britain, and the South-East region including Surrey has one of the highest concentrations of shrink-swell clay hazards in the country.

Horley's proximity to Gatwick Airport and the River Mole also brings specific considerations. Properties near the Gatwick Stream in south-west Horley may have flood risk assessments included where relevant, and those living under flight paths may have specific noise considerations noted. The River Mole flows close to the town centre, and while current flood risk is generally low, properties in low-lying areas near the river require careful assessment. Additionally, with several conservation areas in Horley including the Church Road and Massetts Road areas, any period property you purchase may have restrictions on alterations or require specialist attention to maintain their character features. Properties in these areas may also be listed buildings, such as the Grade I Church of St Bartholomew or various Grade II listed farmhouses and cottages, which require particularly careful survey attention.

• Foundation movement assessment
• Damp and condensation investigation
• Roof and chimney condition check
• Electrical safety evaluation
• Drainage and guttering inspection
• Energy efficiency advice

Horley's property stock reflects its development history, from Victorian terraces built using traditional solid wall construction to modern homes featuring cavity wall insulation. The predominant building materials in the area include red brick and render, commonly seen in both period properties and new developments like Westvale Park where Taylor Wimpey, Crest Nicholson, and Persimmon Homes have built thousands of homes since the project began. Understanding these construction methods is essential for identifying potential defects, as each type brings its own set of common issues that our surveyors know to look for during the inspection.

Properties built before 1919, which make up a significant portion of Horley's older housing stock, typically feature solid brick walls without cavity insulation. These walls rely on their mass to resist weather penetration but can be susceptible to penetrating damp if pointing deteriorates or if renders crack. Our surveyors will assess the condition of external walls, looking for signs of weathering, cracking, or vegetation growth that might indicate moisture penetration. The lack of cavity insulation also means these properties can experience higher heat loss, which we note in our energy efficiency assessment.

Post-war properties built between 1945 and 1980 form a substantial proportion of Horley's housing, given that the town's population doubled during this period due to new housing developments. These properties often feature more modern construction methods including cavity walls, though the original insulation standards were often inadequate by today's requirements. Our surveyors assess the condition of these elements and note where improvements could be made. Many of these properties will now be over 50 years old, making them ideal candidates for a Level 2 survey to identify age-related defects such as deteriorating roof coverings, outdated electrical systems, and original windows reaching the end of their serviceable life.

Newer properties in Horley, particularly those built since 2000 in developments like Westvale Park and The Acres, typically feature modern construction methods including timber-frame internal structures, UPVC windows, and engineered timber joists. While these properties are generally built to higher thermal efficiency standards, our surveyors still check for defects common to new builds such as shrinkage in timber elements, inadequate ventilation leading to condensation, and any snagging issues that may have been overlooked by the builder. Even new homes benefit from a Level 2 survey, as the builder's warranty typically does not cover defects that were present at the time of purchase.

Our experience surveying properties throughout Horley reveals several recurring issues that buyers should be aware of. In older properties, particularly those built before 1945, dampness is frequently identified as a problem. This can manifest as rising damp due to a failed or non-existent damp-proof course, penetrating damp from defective roof coverings or pointing, or condensation caused by inadequate ventilation. Properties in the conservation areas around Church Road and Massetts Road often have solid walls without cavity insulation, making them more susceptible to condensation issues, especially in bathrooms and kitchens where moisture generation is highest. Our surveyors use thermal imaging equipment where appropriate to identify areas of heat loss and potential damp problems that might not be visible to the naked eye.

Roof conditions are another common finding in Horley surveys. Many period properties feature original slate or tile roofs that, while often durable, can suffer from cracked or missing tiles, degraded lead flashings, and deteriorating mortar on ridge tiles. Flat roofs, which are more common on extensions and garage structures, have a limited lifespan and frequently show signs of ponding, blistering, or membrane damage. Our surveyors will thoroughly assess the roof and provide specific advice on any repairs needed. For properties in areas prone to wind exposure, we also check for any tiles that may have been damaged by storms, which is particularly relevant for detached properties with larger roof areas.

Electrical issues are particularly important in properties that have not been updated for 30 years or more. Original wiring from the 1960s and 1970s may not meet current regulations and could pose a fire risk. Consumer units, socket outlets, and light switches in older properties often need upgrading. While our survey is visual and not a full electrical test, we will identify obvious deficiencies such as old-style fuse boxes, dated wiring visible in lofts or under floors, and recommend a registered electrician for further investigation if needed. For properties with electric storage heaters, we also check their condition and age, as these systems can be costly to replace.

The presence of London Clay beneath many Horley properties means that foundation movement and subsidence are genuine concerns. Signs of movement include diagonal cracks wider than 5mm, cracks that step vertically or horizontally, doors and windows that stick or do not close properly, and uneven or bouncy floors. Trees and shrubs close to the property can exacerbate clay shrinkage during dry periods, so our surveyors also assess the proximity of significant vegetation to the building. If our surveyor identifies any of these issues, they will recommend a structural engineer to investigate further before you commit to the purchase. This is particularly relevant for properties along the River Mole corridor and in areas with mature gardens.