The bathroom installation featured a "wet room" -- a growing trend in bathroom design -- that incorporates an open floor plan.

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Mr. Turner's open-plan studio takes up the ground floor, while a small kitchenette and bathroom, plus storage cupboards, are hidden behind sliding doors made from white-stained birch plywood.

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But soon Rich had begun working on it, learning carpentry, building a wing for two new bedrooms and a bathroom and another wing for his study, turning the original house into an open-plan living room, dining room, kitchen.

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