Second Mysterious House Set to be Built for ‘Avengers: Doomsday’—Linked to MCU’s Currently Most Powerful Character

Marvel might be heading back to Berkshire for more filming on the upcoming movie Avengers: Doomsday. A new set could be built in Windsor Great Park, according to plans submitted to the local council by Marvel’s UK-based company, For All Time Productions.

The new set is being called “Annie Reynolds’ house.” Annie Reynolds is Sentry’s mother, and Sentry, following his debut in Thunderbolts*, is one of the most powerful and mysterious characters currently in the MCU.

A leak earlier this year revealed her possible role in the film. The house would be placed by Prince Consort’s Drive, not far from the Windsor Great Park Environmental Centre.

Marvel wants to start building in mid-July and finish taking the set down by the end of September. Filming is expected to happen over just one day in August.

A service pad for equipment and trucks would also be added nearby, crossing into an area managed by Bracknell Forest Council. Marvel hasn’t officially applied to Bracknell Forest yet, but they’ve already sent over the plans for review.

The Royal Borough of Windsor and Maidenhead is currently considering the application. That same council has already approved another Marvel film set just west of the area, along Duke’s Lane.

This isn’t the only set from Avengers: Doomsday that’s caused a stir. A recent leak showed a 1960s-style house named after Marvel hero Luke Cage, along with a spaceship. Other leaks have teased big scenes involving the X-Men, including parts of the X-Mansion and even what looks like a Sentinel.

The cast of Avengers: Doomsday is massive. It includes Chris Hemsworth, Anthony Mackie, Vanessa Kirby, Letitia Wright, Sebastian Stan, Paul Rudd, Wyatt Russell, Florence Pugh, Simu Liu, and many more. It also brings back actors from the X-Men universe like Patrick Stewart, Ian McKellen, James Marsden, and even Hugh Jackman’s Wolverine—though that last bit hasn’t been confirmed.

In the movie, the Avengers team up with the Wakandans, the X-Men, the Fantastic Four, and the New Avengers to take on Doctor Doom, played by Robert Downey Jr.

Avengers: Doomsday is set to hit U.S. theaters on December 18, 2026. It will be part of Marvel’s Phase Six. The sequel, Secret Wars, is planned for release on December 17, 2027.

If you’ve spotted something from the set or have your own theory, let us know in the comments.