A there a way into the subbasement? Re; Construction site

[Broken War Horse]

Re; Construction site. Whey you get to the basement below the fire there looks like another basement, any way of get into it?

[Bobywan]

https://this-war-of-mine.fandom.com/wiki/Construction_Site
"The first time that you visit this location, with either scenario, the basement is flooded. It will become available to you upon your next visit. There is a grate that requires a saw blade and several piles of loot. "

[Broken War Horse]

Thank you