This is where the dampness in your home is not caused by water penetrating from outside but arises due to the conditions in your home. This may be due to a lack of ventilation or poor design. Condensation dampness does not occur due to disrepair, and would not form part of a claim for disrepair. However, it may be possible to bring a claim under The Homes (Fitness for Human Habitation) Act 2018, which is discussed below, or under environmental health legislation.