RICS Level 3 Building Survey in Bourton-on-the-Hill

Most properties in Bourton-on-the-Hill were put up using traditional Cotswold stone methods, very different from modern construction. You see rubble stone walls, steep stone slate roofs with swept valleys, and tall dressed stone chimney stacks. They have real charm, of course, but they also need a careful, experienced assessment.

Our RICS Level 3 Building Survey goes well beyond the surface-level look you get with a basic survey. We check the strength of load-bearing walls, examine timber beams and floor structures, review roofing systems including stone slate tiles and flashing, and look for any movement or subsidence that may be present. Because the village sits on the limestone geology of the Lower Lias and Inferior Oolite formations, and because it lies on a steep hillside along the spring line, our inspectors also focus on ground stability and possible clay-related movement.

Quite a few properties in Bourton-on-the-Hill are listed buildings, or sit within the conservation area that covers much of the village centre. The Grade I listed Church of St Lawrence dates to the 12th century, while many properties including Bourton House, Slatters Cottage, and the Horse and Groom pub hold Grade II or II* listing. Our surveyors know what historic building rules mean in practice, and we can pick out issues that may need specialist conservation input.

There is another layer to think about too. Properties here sit above or close to historical quarry sites where Cotswold stone was extracted from the 15th century until the early 20th century. That quarrying history can leave ground conditions uneven, and that in turn may affect foundations and structural integrity, which makes the detailed review of a Level 3 Survey especially useful.

• Structural movement and subsidence assessment
• Detailed roof condition report
• Damp and timber decay investigation
• Stone wall integrity evaluation
• Conservation area considerations
• Historical quarrying impact review

The village presents several structural issues that our Level 3 Survey is designed to pick up. Because Bourton-on-the-Hill sits on the Cotswold escarpment, many homes are on sloping ground, which can create drainage problems and uneven settlement over time. The spring line location, where water emerges from the limestone, can also lead to damp in lower ground floor walls and sub-floor areas.

Another factor is the historical quarrying in the parish, especially on the sites overlooking the village. Properties built on or near former quarry workings may have needed different foundation treatments, and our surveyors look closely for any signs of ground instability or old movement that could be linked to those legacy issues.

Across the village, the traditional Cotswold stone slate roofs are hard-wearing but still need regular attention. Tiles can become displaced, pointing can fail and allow water ingress, and the swept valleys found on these roofs can gather debris and start to leak. Our roof inspection covers all of that, along with the lead flashings around chimneys and roof windows.

The stone walls themselves, usually rubble limestone with lime mortar, can suffer from deteriorating mortar joints, erosion of the stone in exposed spots, and salt crystallisation caused by rising damp. This is often worse on north-facing walls and in properties where upkeep has been left too long. Our survey identifies how far any deterioration has gone and sets out suitable recommendations.

• Movement and settlement cracks
• Roof slate deterioration
• Damp penetration
• Timber frame decay
• Chimney stack condition
• Ground stability concerns
• Drainage issues
• Conservation compliance

Bourton-on-the-Hill's position on the Cotswold escarpment brings its own points to consider. The village sits on limestone geology including Lower Lias and Inferior Oolite formations, while the underlying clay deposits from the Lias can show shrink-swell behaviour depending on moisture conditions. That clay-related movement may affect foundations, especially where original shallow footings were built for less demanding ground conditions.

The parish history of quarrying Cotswold stone, which ran from the 15th century until the early 20th century, is another detail we factor in. Homes on or near former quarry sites may be standing on ground with a different make-up, and that can affect structural integrity. One notable site overlooking the village was once used as a stone quarry, and the effects of extraction in the area may still matter for some properties.

Watercourses through the village include the Benell and Comb brooks. Although specific flood risk data for Bourton-on-the-Hill was not detailed in available sources, homes near these watercourses should still be checked for potential surface water and fluvial flood risk. Our surveyors will record any visible signs of past water damage or dampness that may be tied to the local hydrology.

Heavy rain can also make a difference here, because the hillside location means surface water runoff may be significant and drainage from higher ground can affect lower properties. We inspect guttering, drainage systems, and any staining or damage that could point to earlier drainage problems.