The applicant, Bianca Matos, occupied Unit 2 in the Laguna Ridge sectional title scheme, a unit owned by her parents. She alleged that longstanding stormwater and drainage failures on common property caused subsidence, damp, cracking, and structural damage to Unit 2 and surrounding common areas. According to her, Unit 2 and Unit 4 had been extended decades earlier by the original developer, and the relevant plans had been approved and reflected in the sectional plan. In 2010, when patio paving was lifted, a broken and misaligned underground stormwater elbow pipe was discovered and repaired by the trustees' plumber, but she contended that the repair was never properly effected and that water continued to flow under the unit. In 2015, a structural engineer warned that settlement would not continue provided there were no stormwater leaks or underground water ingress. Further complaints were made in 2019 and 2020 after worsening structural defects, including walls pulling away from the ceiling, dampness, cracked tiles, and damage to common areas. Reports from experts suggested subsidence and possible stormwater pipe failure. The respondent body corporate disputed liability, contending that the extension to Unit 2 was unauthorised, formed part of the section taken voetstoots by the owner, and suffered from poor workmanship for which the owner was responsible. The respondent also relied on plumbing inspections said to show no drainage problems. The municipality had issued notices concerning dangerous conditions, but these were addressed to the owners, not the body corporate.