RICS Level 3 Building Survey in Missendens Community Board

Properties in the Missendens Community Board present unique challenges that require an experienced surveyor who understands local construction methods and the specific risks associated with the area. Great Missenden and Little Missenden contain numerous period properties built using traditional methods, including the characteristic brick and flint construction seen throughout the Chilterns. Many homes in these villages date from the Victorian and Edwardian periods, while others are more recent additions to the village. A Level 3 Survey provides the detailed analysis necessary to understand the condition of these varied property types, from the timber-framed cottages near the village centre to the larger detached homes on the fringes of the parish.

The local geology presents particular considerations for property owners in this area. The chalk geology and aquifer conditions, combined with the valley location of Great Missenden along the River Misbourne, mean that groundwater levels can be exceptionally high. This affects properties in low-lying areas and can contribute to movement issues over time. Our surveyors specifically examine signs of past or potential subsidence, heave, and other ground-related problems that might not be apparent to an untrained eye. We look for evidence of foundation movement in properties built on the clay deposits that sit above the chalk, particularly in areas where the water table rises significantly during wet periods. Understanding the history of the land beneath a property is essential for making an informed purchase decision.

Flood risk is another important consideration for properties in the Missendens Community Board. Great Missenden is susceptible to surface water flooding due to its valley location, where rainfall naturally collects. According to flood risk data, 12 properties are at risk from a 30-year surface water flood event, 30 properties from a 100-year event, and 137 properties from a 1000-year event. Properties in the valley bottom of the River Misbourne face the highest groundwater flooding risk. The Little Missenden river level gauge provides early warning of high flows, and the area experienced exceptionally high groundwater levels in early 2014. A Level 3 Survey includes assessment of flood risk and drainage issues, ensuring you have a complete picture before completing your purchase.

The Missendens Community Board lies entirely within the Chilterns Area of Outstanding Natural Beauty, and both Great Missenden and Little Missenden have designated Conservation Areas. This means additional planning restrictions apply to many properties in the area, particularly those near the historic village centres, around St Peter and St Paul Church in Great Missenden, and near the Grade II listed Missenden Abbey. Our surveyors understand these heritage considerations and will flag any issues that might affect your plans for renovation or extension, including potential issues with permitted development rights that may be more limited in this area.

• Thorough inspection of all accessible structural elements
• Detailed assessment of defects and their implications
• Analysis of flood risk and drainage conditions
• Evaluation of local geology impacts on the property
• Recognition of traditional construction methods
• Conservation Area considerations

Our inspectors regularly identify specific issues that are particularly common in properties throughout the Missendens Community Board. Given the age of much of the housing stock, with many homes built in the Victorian and Edwardian periods, we frequently find deterioration of original lime mortar pointing in brick and flint walls. This is particularly prevalent in properties along the high street and in the older terraces on Lodge Lane and Chestnut Lane. Modern cement-based repointing can actually accelerate decay by trapping moisture in the wall structure, and our reports highlight where this has occurred and what remedial action is needed.

Another common finding in this area is issues with historic timber-framed construction. Many properties in Great Missenden and Little Missenden have exposed timber frames or internal timber partitions that may have been concealed by later plasterwork. We check for signs of woodworm activity, rot in load-bearing posts and beams, and evidence of past structural alterations that may have compromised the integrity of the original frame. The humid conditions created by the high water table in the valley can exacerbate timber decay, particularly in cellars and ground-floor structures.

Roof coverings on period properties in this area often require attention. Traditional clay tile roofs, common on Victorian and Edwardian homes throughout the Missendens, can develop slipped or broken tiles, deterioration at ridges and hips, and issues with the underlying felt or sarking. Properties with original lead valley gutters are particularly prone to deterioration, and our surveyors pay close attention to these details as they can be expensive to repair. Chimneys on these older properties are also frequent sources of defects, with damaged brickwork, deteriorated flues, and flashing issues commonly identified.

Given the chalk geology and high groundwater levels, we also see cases of subsidence and settlement affecting properties in this area. While the chalk itself is generally stable, properties built on the overlying clay soils can experience movement as the clay shrinks and swells with changes in moisture content. This is particularly relevant for properties in the valley bottom areas near the River Misbourne, where groundwater is closest to the surface. Our surveyors look for signs of cracking, differential settlement, and other indicators of ground movement when inspecting properties in these locations.

While the Missendens Community Board is primarily characterised by established villages with period properties, there are occasional new build developments entering the market. The Station Approach development in Great Missenden involves plans for flats and houses on derelict land between the High Street and the railway, though this project has faced delays related to Suitable Alternative Natural Greenspace requirements. Another project at Alca Green Lane in Prestwood received planning permission for three terraced dwellings. Even for newer properties, a Level 3 Survey remains valuable as it identifies any construction defects, issues with materials or workmanship, and ensures the property meets current building regulation standards.

Newer properties built in recent decades may present different issues compared to period homes. Modern construction methods and materials can have their own set of potential problems, from issues with cavity wall insulation to defects in flat roofs or extensions. Our surveyors apply the same rigorous inspection standards to new builds as they do to older properties, ensuring you receive an accurate assessment regardless of the property's age. We check that modern uPVC windows and doors are properly installed, that render systems are in good condition, and that any extensions or conversions have been carried out to the required standards.

The Station Approach development is being brought forward by Peker Holdings and forms part of a wider regeneration of the area between the High Street and the railway station. This project has been designed to complement the historic character of the village centre, and the nearby Red Lion development may access the High Street if the Station Approach access is not approved in time. For buyers considering properties on these new developments, our surveyors will check that the construction meets current building regulations and identify any defects in the recently completed work. Given the premium property values in this area, with detached properties in Great Missenden averaging over £1 million, the investment in a thorough survey provides essential protection for your purchase.