The idea of an 18-year property cycle offers a neat way to organise market history. It can be an interesting framework, but a neat timeline should not be mistaken for a dependable calendar of future prices. A purchase still needs to work as an individual decision, with its own costs, financing and risks.
The linked article describes the cycle theory and discusses possible interpretations of recent movements. Read such material as an argument to examine rather than a date to act on. Different choices of geography, price measure and turning point can affect how convincing a historic pattern appears.
Ask what would count as evidence against the claim. If every unexpected movement is reclassified as a pause or a different phase, the theory becomes difficult to test. A useful forecast should state its assumptions and limitations rather than appearing correct whatever the market does next.
Separate a national story from a local property. Different homes can face different demand, condition and lending questions at the same time. A broad prediction of rising prices does not resolve a short lease, an expensive repair or an income estimate that lacks comparable evidence.
Use scenarios to test the proposal instead of selecting one expected market path. Consider a longer sale period, a lower rent or a less favourable refinancing cost. Identify which assumptions are manageable and which would require additional money or a change of plan.
Keep the time horizon explicit. Someone buying a home to occupy for years faces a different practical decision from a business planning a quick resale. Neither should assume a theoretical phase removes transaction costs or guarantees an exit at the preferred moment.
Finally, retain a written explanation of why the specific property is suitable and what remains uncertain. This is an editorial approach to evaluating a market narrative, not a forecast or an investment recommendation. Historical patterns can prompt better questions, but they cannot perform the due diligence or remove the uncertainty of the answer.
Source and further reading: https://www.propertyinvestmentsuk.co.uk/18-year-property-cycle/