RICS Level 3 Building Survey Somerset

Somerset's diverse housing stock presents unique challenges for property purchasers, with the county boasting a rich architectural heritage spanning from late medieval cruck-framed barns to contemporary new builds, each era bringing its own construction methods and common defects. Traditional properties often feature local materials like Ham stone from the quarries near Stoke-sub-Hamdon, Blue Lias limestone from the central areas around Somerton and Keinton Mandeville, or the distinctive Chert rubble found in properties near Chard and throughout the Blackdown Hills. Understanding these local building traditions is essential for identifying potential issues that might not be apparent to an untrained eye. The geological variations across Somerset mean that even properties just a few miles apart can have completely different construction characteristics.

Many Somerset properties, particularly those in rural areas and villages, retain original features that require specialist knowledge to assess properly. The county's distinctive jointed cruck trusses represent a traditional construction method that surveyors must understand when evaluating structural integrity, as these timber frames are a distinctive Somerset feature found in many buildings dating from the late medieval period onwards. Thatched roofs, while increasingly rare, still exist on some properties and carry specific maintenance requirements and insurance considerations that our surveyors can accurately assess. Properties in conservation areas throughout Somerset, including many in Bath's UNESCO World Heritage City, may also have restrictions on alterations that affect both current condition and future maintenance plans.

The Somerset housing market saw approximately 12,700 property sales in the year to December 2025, with sales dropping by 12.6% compared to the previous period. The majority of properties sold in the £300,000 to £400,000 price range, representing 21.7% of all transactions. With such significant investments at stake, particularly for detached properties averaging £451,000, a comprehensive RICS Level 3 Survey provides essential protection. The survey helps you understand the true condition of the property before committing to purchase, giving you leverage in negotiations if significant defects are identified. Newly built properties in Somerset averaged £396,000, showing a 7% increase over the twelve months to December 2025.

Properties in Somerset face specific environmental challenges that our surveyors know to look for, including flood risk in low-lying areas near the River Parrett and the Somerset Levels, as well as ground movement concerns in areas with clay soils that can experience shrink-swell behaviour. Coastal properties around Burnham-on-Sea face additional considerations including coastal erosion and salt damage to building materials. Our local experience means we know which areas of Somerset are more susceptible to these issues and can provide particularly thorough inspections for properties in affected locations.

• Traditional stone-walled properties
• Period cottages with thatched roofs
• Victorian and Edwardian terraces
• Modern new-build homes
• Listed buildings in conservation areas

The geology of Somerset has historically dictated building construction, with different areas of the county using locally quarried materials that reflect the underlying geology. In the south around Chard and the Blackdown Hills, properties commonly feature Chert rubble walls, while the area around Bath uses the famous Bath stone for its distinctive honey-coloured architecture. Ham stone, extracted from the quarries near Ham Hill and Stoke-sub-Hamdon, has been used extensively for both wall construction and decorative elements including door and window dressings and quoins. You'll find this material prominently featured in properties throughout the Yeovil and Ilminster areas, with its warm yellow colouring being a distinctive feature of the local vernacular.

The arrival of the railway in Somerset brought significant changes to building materials, with brick becoming more common from the late 19th century onwards, often replacing traditional stone in new constructions. Concrete tiles also became popular during this period, providing a more affordable alternative to traditional clay tiles from Bridgwater. Understanding these material changes helps our surveyors date property elements and predict potential issues. Properties built during the railway era may have mix-and-match materials where original stone has been replaced with brick or concrete, each with different durability characteristics that affect long-term maintenance requirements.

Timber-framed construction is prevalent in many Somerset properties, particularly in the west of the county where wood was more readily available than stone. Our surveyors pay particular attention to timber condition, checking for signs of rot, woodworm, and past damp damage that can compromise structural integrity. The distinctive jointed cruck trusses found in many Somerset buildings require specialist assessment, and our team understands how to evaluate these traditional structural elements for signs of stress or movement that might indicate structural concerns. In areas with clay soils, such as parts of the Somerset Levels and around Yeovil, we also check for potential shrink-swell movement that can affect both foundations and timber elements.

Different stone types have different characteristics that affect their durability and maintenance needs. Doulting stone, quarried near Doulting, has been used for doorways and high-quality ashlar work, while Cary stone from near Castle Cary appears in buildings throughout the eastern part of the county. Otter Sandstone, also known as Lydeard Stone, creates the distinctive red, pink, and fawn mottled appearance seen in many properties around the Vale of Taunton Deane. Upper Greensand is used for quoins and dressings in the Blackdown Hills and Vale of Taunton Deane areas. Our surveyors recognise these materials and understand the specific issues each one can present over time.