My siblings and I inherited a house – will we be liable for stamp duty?

The house is probably worth £80,000 to £90,000, but three of us already own propertyQ My three siblings and I inherited property from my great-aunt after she died in 2006. It’s a tiny cottage in Wales, with one bedroom, one living room, a small kitchen and a small bathroom. There is a little bit of land around it by way of a garden which slopes down to a river. I don’t think that it’s worth terribly much – possibly in the range of £80,000 to £90,00