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Posted by Guest User Tina
Hi Everyone, In the future we are hoping to do an extension to the back of our house. What we would like to do is open up the back of the dining room and kitchen. So from the beginning of the kitchen window, up and including the dining room window and wall between would be taken out.First is this possible, is there any girders in the wall??We did have patio doors put in some years ago with no problem, but can’t remember what is on each side of the window. I thought I saw the plans of a house strip back to bare bones or steels. Did I just imagine that or are they still on the site some where? Tina
Hi Tina, there was exactly this question asked recently but I can't find it or my reply. Usually in extensions to BISF houses a doorway is created into the extension between the steel stanchions in the original wall, typically where there was a window, rather than removing more of the wall. In theory you could do what you propose, but it would be quite a big engineering job and involve quite a bit of replacement steelwork.
In the back wall of the house there are five vertical steel stanchions plus one shared with the house next door. They are located (from the gable end to the party wall): one in the corner of the kitchen, one on each side of the kitchen window, one on each side of the dining room window, and one at the party wall.
What you are proposing would involve cutting out the downstairs parts of two of those stanchions (next to kitchen window and dining room window) so you would need some hefty horizontal steelwork put in to hold the remainder up, possibly also new and larger stanchions at each end. Whether building control would allow this I'm not sure.
The best photo is at https://bisfhouse.com/bisf-house-external-sructure, it's the third from the bottom, on the left hand side. You can see the steelwork painted green. The hole with the tiles visible inside is the kitchen window and the hole with the yellow spotty wallpaper is the dining room window. You can see the diagonal bracing that keeps the corner of the house square on the right hand side, and the horizontal steel plate that supports the first floor beams across the middle.
I always look forward for home improvement. One of my friends did home additions by hiring home additions San Jose team. He found about them from the internet. Now, he have a beautiful and updated home addition.