Restoring Old and Period Properties After Flooding

Restoring Old and Period Properties

Older and period properties can be more difficult to protect from floodwater. In many cases, it may not be realistic to keep water out altogether. Instead, it can be more effective to accept that floodwater may enter and focus on resilience measures that help the building recover more quickly and reduce long‑term damage.

Traditional buildings are designed to breathe and to manage moisture differently from modern homes. Because of this, some modern products and techniques can cause problems when used in older properties.

Choosing suitable materials

It is generally best to avoid materials that trap moisture, such as:

• Modern gypsum plaster

• Fitted carpets below flood level

• Tanking and fully waterproof systems

• Water‑repellent coatings that prevent walls from drying

  
  

More appropriate alternatives for older buildings may include:

• Breathable materials, such as lime plaster

• Solid or tiled floors, with loose rugs that can be removed

• Repair methods that allow moisture to evaporate naturally

  
  

Using breathable materials can help the building dry out more effectively after flooding and reduce ongoing damp problems.

Listed buildings and permissions

If your property is listed, you will need to get approval before making changes or installing any flood resilience measures.

• Contact your local conservation officer for advice

• Conservation officers are usually based within your local council

• Approval should be sought before carrying out work or using new products

Early discussion can help you avoid inappropriate work and delays later in the recovery process.

Balancing flood resilience and character

When considering flood protection or resilience measures in a period property, it is important to think about how they will affect the character of the building.

For example, replacing an original period door with a modern plastic flood door may not always be appropriate. In some cases, a removable flood board or other temporary measure may provide protection while preserving the appearance of the property.

Where possible, aim for solutions that are reversible, sympathetic, and proportionate to the building.

Drying older buildings

Old and traditional buildings should be dried slowly and gently after flooding.

Drying too quickly or using excessive heat can:

• Trap moisture in walls and floors

• Damage historic materials

• Lead to cracking or long‑term deterioration

Allowing the building to dry naturally, with good ventilation and appropriate advice, is often the safest approach.

Further advice and guidance

Specialist advice may be helpful when dealing with older or historic buildings. Useful sources include:

• The Society for the Protection of Ancient Buildings (SPAB)

• Historic England

You may also find the guide Flooding and Historic Buildings helpful when planning recovery and future resilience.

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