RICS Level 3 Building Survey in Great Altcar

Great Altcar’s unusual geography makes a RICS Level 3 survey well worth having for prospective buyers. This civil parish lies on the West Lancashire Coastal Plain, where the land is low-lying, marshy, and made up of peat or alluvial deposits. In the past, the area needed the extensive drainage systems known as the "Alt" drainage network before it could support agriculture and homes. That history still matters. Properties here face a much higher risk of damp-related problems than homes on firmer ground, and the drainage dykes and pumping stations that keep the land habitable are part of daily life. Knowing how those systems affect an individual property is essential to any careful survey.

We regularly come across problems linked to the local ground conditions. Rising damp and penetrating damp are both common, especially in period properties built before modern damp-proof courses became standard. Because the water table is high in this low-lying area, moisture can work through walls and foundations and, if it is left alone, lead to structural concerns. We have seen timber floors deteriorate, plasterwork damaged inside, and even wall foundations affected. A Level 3 survey looks closely at those risks and gives a clear assessment of current damage and what may develop later.

Settlement and subsidence are another concern in Great Altcar, largely because of the alluvial and peat soil composition. As the ground beneath a property consolidates or shifts, structural movement can appear as cracks in walls, sticking doors, or uneven floors. Our surveyors examine those signs carefully, along with foundations, walls, and the building’s overall structural integrity. We also pay close attention to how the property sits against the surrounding ground levels, since homes below the natural drainage level are especially exposed to water ingress and the damage that can follow.

• Rising damp from high water tables
• Structural movement on soft soils
• Drainage system failures
• Flood damage to lower floors
• Timber decay in older properties

Surveying properties across West Lancashire has given us a detailed understanding of the defects most often seen here. Because the land is low-lying, surface water flooding is a real risk, so our inspectors always look at external ground levels, the condition of damp-proof courses, and how effective any drainage systems are. Properties that have flooded before may show signs of water damage to lower walls and floors, which can need further investigation. We have surveyed several homes where earlier flooding damaged electrics at lower levels, and we make sure those issues are clearly set out in the report so buyers can weigh them properly.

Drainage problems are especially common in Great Altcar. The dependence on drainage dykes and pumping systems to keep water levels under control means properties can be vulnerable to water ingress if those systems fail or are overwhelmed in heavy rain. Our surveyors examine surface water drainage, foul water systems, and any pumping equipment on site. We also check that guttering and downpipes are working correctly and carrying water away from the foundation. We have seen homes where blocked or inadequate drainage has caused serious damp problems, and our inspection process is designed to catch these issues before they turn into major repairs.

Traditional materials used locally call for specialist knowledge too. Many older homes here are built in brick, with some timber-framed structures, and our surveyors know how those materials behave in this environment. We look for deteriorating cement mortar in older brickwork, salt efflorescence that points to ongoing damp, and timber decay in structural elements or finishes. The Church of St Michael and All Angels, built in 1879, is a good example of the traditional construction methods used across the area, and many private houses in the parish were built in a similar way. That background is vital when assessing period properties in Great Altcar.

The surrounding agricultural land has its own effect on property condition. Farm buildings, storage tanks, and agricultural machinery can all alter drainage patterns and water tables next to neighbouring homes. Our surveyors take those outside influences into account when assessing a property in this rural setting. We have seen cases where changes to adjacent farmland have altered drainage routes and caused damp problems that were not present when the house was first built. This broader approach gives you a more complete picture of the property and any risks it may face.