Grand Designs viewers erupted on Wednesday night as Kevin McCloud introduced a striking new contender for House of the Year 2025 — only for fans to slam one “major flaw” they couldn’t ignore. The sculptural home, clad entirely in Cor-Ten steel, was designed to weather naturally. But for many watching, that was exactly the problem. Fans of the Channel 4 show took to X within minutes, insisting the bold exterior would be a disaster in the British climate.

One wrote: “Don’t accidentally brush up against the house, you’ll get your clothes covered in unremovable rust.” Another said: “that would look great in Africa, but it’s the UK with the rain. It’s going to go rusty and it will literally drip on the floor.” A third viewer mocked the practicality of the design, adding: “Great, a house tha

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