It used to be every five years, because that tended to be when insurance companies got a bit nervous that the figure was getting old. Now we advise clients to reassess it after three years. But it does vary between clients - for example, if the client has a traditional home where not much has changed or been added, we wouldn’t want them to go to the expense of having a re-valuation three years later to tell them it's exactly the same. On the other side of that, if the client has a really modern home with contemporary artworks, including, say, some Banksy’s, well we are seeing a Banksy one year for £100,000 and the next year, we’re valuing it at £160,000. Generally, just getting the figure checked every few years is not a bad thing, but it's certainly not something that needs to be done every year or two.