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Season guide

Grand Designs: Season 18

9 episodes Premiered Sep 6, 2017 Updated Nov 11, 2026
Previously on Grand Designs

Season 18 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Picks up essential narrative continuity directly following the events of Grand Designs Season 17.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season 18 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 18 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 18: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

33%
67%
Mytharc (3): Crucial lore & season climaxes
Core (6): Character development & subplots
Side Quest (0): Standalone / filler
S18·E1 Mytharc

Malvern: Hill House

Sep 6, 2017 · 45 min

After a four year stint living in New Zealand, ex-RAF pilot Jon and GP Gill Flewers want to build a Kiwi-style hill house on the slopes of the Malvern hills in Worcestershire. They

S18·E2 Core

Harringey, London: Victorian Gatehouse

Sep 13, 2017 · 45 min

Kevin McCloud meets neurologists Penny Talelli and Mark Edwards, who plan to combine their love of old and contemporary architecture as they transform a derelict Victorian gatehous

S18·E3 Core

County Down: Agricultural House

Sep 20, 2017 · 45 min

Kevin McCloud meets young architect and shed fanatic Micah Jones, who plans to transform an old agricultural building in County Down, Northern Ireland. Micah plans an upside down,

S18·E4 Core

South Hertfordshire: Roman House

Sep 27, 2017 · 45 min

Kevin McCloud meets Chris and Kayo, who plan to build a unique, Roman-inspired home on the protected land surrounding one of Britain's most historic abbeys in Hertfordshire. The pa

S18·E5 Core

South East London: Victorian Dairy House

Oct 4, 2017 · 45 min

Beth and Andrew rescue a crumbling Victorian dairy, hoping to make it into a 'shabby chic' family home fit for modern life. But is the building simply too derelict?

S18·E6 Core

Blackdown Hills, Devon: Snake House

Oct 11, 2017 · 45 min

Kevin McCloud visits a house belonging to an engineer that resembles a giant snake. The building was inspired by an ammonite shell and has a scaly, curving structure that spirals o

S18·E7 Core

Peak District: Post-Industrial House

Oct 18, 2017 · 45 min

After 15 years of saving and planning, ecologist Fred and communications manager Saffron Baker start building work on their new family home in a village in the Peak District. Howev

S18·E8 Mytharc

London: Miniscule House

Oct 25, 2017 · 45 min

Design engineer Joe Stuart and service designer Lina Nilsson take on the London property market, as they build their own home on a miniscule 38 square metre plot. Joe designs a spl

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