Is Your Home Prone to Flooding? What Surveyors Look For

Flooding is a growing concern for homeowners across the UK. With changing weather patterns and increased urban development, understanding your property’s flood risk has never been more important. Whether you’re buying a new home or maintaining your current property, knowing what surveyors look for during a flood risk assessment can help protect your investment and give you peace of mind.

Identifying flood risk zones

Surveyors start by examining the location of your property to assess its risk of flooding. Properties near rivers, coastal areas, or in low-lying regions are at higher risk. They use resources such as the Environment Agency’s Flood Map for Planning to determine the likelihood of flooding and categorise the property’s risk as low, medium or high.

Key factors they consider:

• Proximity to water sources, such as rivers, streams or reservoirs.
• Past records of flooding in the area.
• The impact of urban drainage and nearby infrastructure on water flow.

Assessing property features that affect flood risk

Surveyors will then analyse specific property features that may either mitigate or worsen the risk of flooding:

1. Foundation type: houses with basements or poor drainage around foundations are more susceptible to flood damage.
2. Landscaping: slopes, retaining walls and the overall grading of the land can influence how water drains away from the property.
3. Building materials: flood-resistant materials, such as waterproof membranes, concrete walls and elevated structures, can reduce damage.

Warning signs of previous flood damage

During the survey, our surveyors look for evidence of past flood damage, including:

• Water staining: marks on walls, ceilings or floors, particularly in basements or on lower levels.
• Warped flooring: floorboards or tiles that show signs of buckling due to prolonged exposure to moisture.
• Mould or damp odours: persistent musty smells or visible mould growth, often caused by inadequate drainage or past flooding.

The role of flood defences

If a property is located in a higher-risk area, surveyors will evaluate any existing flood defences, such as:

• Flood barriers or levees in the wider community.
• Installed sump pumps or drainage systems on the property.
• Raised electrical outlets or appliances as a precautionary measure.

Flood risk and property value

Surveyors also consider how flood risk might affect the value of your property. Homes in flood-prone areas may carry higher insurance premiums, which can affect their overall appeal to potential buyers. A survey provides insight into the availability and likely cost of flood insurance, and the potential future costs related to flood mitigation or repairs.

Practical steps for homeowners

If you discover your property is at risk, there are proactive measures you can take:

1. Install flood barriers for doors and windows.
2. Upgrade drainage systems around the property.
3. Use flood-resistant materials during renovations.
4. Regularly check local flood warnings and prepare an emergency response plan.

How Lyman Marshall can help

We understand the importance of protecting your home from potential flooding. Our experienced RICS surveyors provide comprehensive property assessments to help you understand your flood risk and offer tailored recommendations. Explore our RICS Level 3 Building Surveys, RICS Level 2 Home Surveys and property valuations, or contact us today to schedule your survey and safeguard your home against future risks.