Originally commissioned by Thomas Wayne for his wife Martha the Glasshouse was made by her favorite architect. After their deaths their son Bruce at the age of 18 would move into the house, leaving Wayne Manor to become rundown and overgrown.
After discovering that Anatoli Knyazev is working for Lex Luthor, Bruce strategizes with Alfred in the Glasshouse and expresses his interest to infiltrate Lex's villa in Metropolis as Batman to gather information on the White Portuguese. However, Alfred notes that it would be unnecessary as Bruce Wayne has been formally invited to a fundraiser event. Later, dressed in formal wear, he drives his vintage car from the garage to the fundraiser, passing by Wayne Manor.
Capitol Bombing Aftermath
As Alfred returns to the Glasshouse from chopping firewood, he discovers a pile of Wallace Keefe's returned severance payments, unaware that they were forged with hateful words by Lex Luthor. He watches TV and learns about the US Capitol bombing. Distraught, Alfred stands on the porch and reflects on the psychological effects on Bruce Wayne in regards to Superman.
The living room contains a fireplace, an L-shaped couch, a glass coffee table, and two chairs. The room also contains a glass table with four chairs for eating, and Bruce Wayne's work desk.
The bathroom contains a shower with a see-through door, a sink, toilet, and towels and other hygenic supplies, such as toothbrushes.
Bruce Wayne's room
Bruce Wayne's bedroom is located at the far end side of the Glasshouse, it contains a queen size bed, a nightstand, some chairs, and a window with a view of the lake located outside the Glasshouse.
The kitchen is located at the center of the Glasshouse, it contains the common kitchen objects, such as a stove, refrigerator, and a sink along with cabinets on the walls. This is also where Alfred Pennyworth cooks meals.
The garage contains a mini shed of some sort, along with one of Bruce Wayne's cars parked there as well.
The patio is located on the outside of the Glasshouse, it contains a fireplace, couches, and a dock that leads out onto the deck to Bruce Wayne's yacht.
Alfred Pennyworth's room
Alfred Pennyworth's bedroom is located at an unknown part of the Glasshouse.
Behind the scenes
- Zack Snyder revealed that the Glasshouse was originally commissioned by Thomas Wayne for his wife Martha and that Bruce Wayne moved into the house at age 18 claiming "I think his father commissioned the lake house as a gift to his mother, a place built by her favorite architect, and she loved it. When Bruce turned 18, he moved in [and] he ordered Wayne Manor be left to decompose." 
- The Glasshouse is directly over the Batcave with an elevator and several other ways to reach it. Unlike traditional media, the Batcave is underneath Wayne Manor. As Bruce started his career as Batman when he was 18, he had the Glasshouse contruscted over the cave for easy access for both himself and Alfred.
- For production, the Glasshouse was built on a lake in Camp Metamora, which is in Metamora Township, north of Detroit, Michigan.
- Begley, Chris (July 30, 2015). 18 things revealed in the ‘Batman v Superman’ issue of Empire that no one’s talking about. Empire.
- Marsham, Liz (February 16, 2016). Guide to the Caped Crusader/Guide to the Man of Steel. United States: Scholastic.
- Goyer, David S., Terrio, Chris (writers) & Snyder, Zack (director) (March 25, 2016). Batman v Superman: Dawn of Justice.
- Melrose, Kevin (April 5, 2018). Why Wayne Manor Is Abandoned in Batman v Superman. CBR.
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- "Film locations for Batman v Superman: Dawn Of Justice, in Detroit, Chicago, Los Angeles and New Mexico" - Movie-Locations.com