Actress Emma D’Arcy and production designer Jim Clay provided a detailed tour of the Red Keep sets built for House of the Dragon season 3 [1].
The tour highlights the intricate world-building and craftsmanship required to bring the fictional Targaryen dynasty to life. By showcasing the physical architecture, the production emphasizes the scale of the series' environment, and the specific atmospheric needs of the characters' private spaces.
Filmed at HBO production facilities in the United Kingdom, the tour explores several key locations within the Red Keep [2]. The walkthrough includes a visit to Rhaenyra’s chambers, which is featured starting at the 2:53 mark of the video [4]. D’Arcy and Clay also guide viewers through the Council Chamber, and the private quarters of Alicent and Helaena [1].
One of the most prominent architectural features showcased is the Grand Staircase, which appears at the 7:40 mark [4]. The set design serves as a visual extension of the narrative, using space and structure to reflect the power dynamics and emotional states of the royal family.
This promotional look follows the recent launch of the new episodes. Season 3 of House of the Dragon premiered on June 21, 2026 [5]. The production used these expansive sets to facilitate the complex choreography and dramatic tension central to the latest chapter of the story [1, 2].
Clay and D’Arcy said the physical environment influences the actors' performances. The detailed sets allow the cast to interact with a tangible world, which helps maintain the historical weight of the series' aesthetic [1].
“The tour highlights the intricate world-building and craftsmanship required to bring the fictional Targaryen dynasty to life.”
The release of detailed set tours serves as a strategic marketing tool to engage the core fanbase through 'lore' and technical appreciation. By focusing on the production design of the Red Keep, HBO reinforces the prestige of the series as a high-budget cinematic endeavor, ensuring that the physical environment remains a character in its own right as the plot's political stakes increase.
