The Channel 4 show is now entering its 26th series, with previous episodes seeing everything from giant curved glass homes to mansions built out of clay and former water towers.
Now, more keen builders are ready to take on the task, not for the faint-hearted, as Kevin travels around the UK to see the new builds in Grand Designs.
The first episode of the new series saw artist Sarah with a radical super-sustainable home that combined living quarters with a studio and an art gallery.
Last week, couple Pete and Aey constructed a factory-built house in rural West Sussex.
This week, Marcus and Abi are hoping to build a “luxurious off-grid family home” in Pembrokeshire.
‘Luxurious’ budget home in Pembrokeshire in new Grand Designs
Couple Marcus and Abi have plans to build their dream family home in a 20-acre woodland, with a budget of £100,000.
Planning permission was approved under Wales’ One Planet Development planning laws, which require applicants to follow a sustainable lifestyle.
The pair have no detailed plans, seeing their project pushed to the limits of design and endurance.
Grand Designs is on the longlist for Best Lifestyle Show at the TV Choice Awards 2026 🥳
If you love the show, you can vote using the link in the post below before midnight TOMORROW. #GrandDesigns pic.twitter.com/RckmIDdgGq
— granddesigns (@granddesigns) October 13, 2025
The Channel 4 description for the new Grand Design episode adds that the build becomes a “physical adventure that defies convention and challenges many of the ideas around what a home should be.”
In the preview for the new Grand Designs episodes, the ambitious Marcus shares: “The dream opportunity to build our own house.”
Adding: “Yeah, money’s a worry, a tiny, tiny budget”.
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In an Instagram post from the Grand Designs official page, it shares: “Marcus and Abi have £100,000 to take on the ultimate challenge – building an off-grid family home deep in a 20-acre woodland.
“Granted permission through the One Planet Development policy in Wales, they will be armed with nothing but determination and timber.”
Grand Designs airs on Channel 4 on Wednesday evenings at 9pm, and is available to stream on All4.
