RICS Level 3 Building Survey in Lezant

A RICS Level 3 Building Survey, also known as a full structural survey, is the most detailed inspection available for residential properties. Our inspectors look at every accessible part of the building, from the roof right down to the foundations. In Lezant, where many homes go back centuries and use traditional Cornish construction methods, that close approach matters, because hidden defects are not always obvious at a basic viewing.

Walls, floors and ceilings all get a careful structural check. Our surveyors look for movement, cracking, dampness and timber decay. Around Lezant, the geology includes clay-rich soils that are prone to shrink-swell behaviour, so we pay close attention to foundation conditions and any sign of subsidence or heave. Roofing materials, gutters and drainage systems are checked too, which matters even more for properties with traditional slate roofs found across Cornwall.

We inspect every visible and accessible element, including windows, doors, joinery and finishes. The survey picks out areas that need urgent attention as well as things likely to need maintenance later on. For Lezant properties that are listed buildings or sit within the conservation area, we flag any heritage-related issues and explain what they may mean for repairs or renovation plans.

Outbuildings, boundary walls and grounds are part of the inspection as well, which is especially relevant in this agricultural parish where larger farmhouses and homes with generous plots are common. Many Lezant properties include traditional barns or former agricultural buildings, and we assess how they stand now and what their condition could mean if they are put to another use later.

• Structural walls and foundations
• Roof structure and covering
• Damp and condensation assessment
• Timber decay and pest infestation
• Windows, doors, and joinery
• Drainage and gutters
• Boundary walls and outbuildings
• Energy efficiency observations

Several local conditions in Lezant are picked up in detail by our Level 3 Surveys. The parish sits on geology that includes clay-rich formations, and those soils can shrink and swell during drought or heavy rain, which puts pressure on foundations. Older homes, especially those without modern deep foundations, can then show cracking and movement in walls. Our surveyors know what to look for and whether the signs suggest an ongoing risk. Cornwall’s dry summers followed by wet winters can make that cycle of heave and settlement worse.

Cornwall’s traditional building materials need specialist assessment. Granite is hard-wearing, but it is porous and can suffer salt contamination in exposed positions. Slate roofing is weather-resistant, yet it can turn brittle with age and may be affected by storm activity, particularly with Lezant’s elevated position in the county. Cob construction is also common, and while it gives good insulation, damp can become a problem if the external render fails. Our inspectors understand these local methods and can spot issues that a less experienced surveyor may miss.

Lezant is not on the coast, but Cornwall’s wider maritime conditions still mean salt corrosion can affect roof fixings and external metalwork inland. Properties close to the River Tamar may also bring drainage issues into play. Our Level 3 Survey looks at all of these factors and gives a clear picture of the property’s condition, along with any remedial work that may be needed.

Cornwall has a long mining history, and ground near former workings can be unstable. Greystone Quarry, near Lezant, is a large aggregate quarry and a reminder of the area’s geological activity. Our surveyors are trained to spot signs of movement that could point to mining subsidence or old quarrying activity, and we recommend more investigation where it is needed.

Lezant’s rural setting means many houses have stayed within the same family for generations, so modern updating can be limited. For these older homes, a Level 3 Survey is strongly recommended if you want a proper picture of the building’s condition. Newer builds usually come with guarantees and up-to-date building control certificates, but older Cornish properties may hide defects that have built up over decades of occupation. Many have not had the same maintenance or upgrading expected under modern building regulations.

Some properties in the Lezant area are listed buildings, or stand close to listed structures. The Church of St Briocus, Chapel of St Mary Magdalene at Trebullett and Greystone Farmhouse are among the parish’s notable listed buildings. If a property is listed or lies within a conservation area, our Level 3 Survey can identify matters that may affect listed building consent for future works. That matters, because restrictions on alterations to heritage properties can have a major impact on renovation plans and costs.

The agricultural character of Lezant means a number of homes include traditional barns, outbuildings or former farm buildings. Many have been converted for residential use, often as barn conversions like those at Penscombe Barns. These buildings can throw up particular challenges, from the structural effect of cutting windows and doors into original stone walls, to the condition of old timber frames and how well modern insulation works within traditional fabric. Our Level 3 Survey deals with those conversion issues directly.

Planning decisions in Lezant are guided by the Neighbourhood Development Plan adopted in 2020, so any major extension or renovation must fit local policy. Our survey report can help set out what work may be possible and where the limits lie. That is useful whether the plan is to modernise a period house or extend a barn conversion.

From surveying properties across Lezant and the rest of Cornwall, we know the kinds of defects that turn up time and again. Dampness is one of the most common, especially in homes with solid walls rather than cavity walls. Granite masonry and cob walls can let moisture in if the render or pointing has failed. We check ground floor areas, basements and roof spaces carefully, where poor ventilation can make matters worse.

Roof problems are common in Lezant, partly because so many properties are old and partly because the site is exposed. Traditional slate roofs are durable, but slipped or broken tiles, worn lead flashings and corroded fixings all appear over time. Salt-laden winds from Cornwall’s coast can speed up the decay of metal parts, even inland at Lezant. Our inspectors assess roof slopes in detail, use loft access where it is available, and look closely at chimneys, which in older buildings often show movement or decay.

Another concern here is structural movement. Much of Lezant sits over clay-rich soils that shrink and swell as moisture levels change, so foundations can expand and contract. That movement often shows up as cracking in walls, especially at weak points such as window and door openings. Our surveyors know how to separate small settlement cracks from more serious signs of active movement that may need input from a structural engineer.

Older Cornish homes often show timber defects, including rot and insect infestation. Damp conditions, mixed with traditional timber construction, can affect floor joists, roof timbers and structural frames. We use moisture meters and probe where appropriate to judge how far any decay has gone, and to see whether repairs are urgent or whether the timber is stable.