Blaustift
2022-08-21 12:35:42
- #1
Good day,
Our single-family house was originally planned so that 1/3 of the house could have been rented out as a separate apartment in old age. Originally, we were convinced by this concept because, when the children have moved out, the space in the house is too large. For this reason, two concrete staircases were also installed in parallel, separated only by a load-bearing wall. However, since we are now moving out and our children will take over the house, every square meter of the house is needed.
Therefore, we would like to dismantle one concrete staircase and use the resulting space for the room above. Although the effective gain in space is small, the room next to the staircase is already relatively small (also due to the sloping roof) and should function as a full-fledged children's room in the future.
First, a few photos for a better assessment of the situation:


My amateur idea was to first remove the wooden stair treads and the handrail, then place four steel beams on the concrete stair treads at the edges. Afterwards, insert a ceiling over the steel beams at the staircase. Subsequently, remove the walls at the staircase adjacent to the current bedroom and relocate the door.
What must be considered in such a renovation? Is it feasible this way, or are there alternative solutions? What kind of costs should be expected for such a project? Should new walls be built with sand-lime brick or should the new wall be constructed in drywall?
Our single-family house was originally planned so that 1/3 of the house could have been rented out as a separate apartment in old age. Originally, we were convinced by this concept because, when the children have moved out, the space in the house is too large. For this reason, two concrete staircases were also installed in parallel, separated only by a load-bearing wall. However, since we are now moving out and our children will take over the house, every square meter of the house is needed.
Therefore, we would like to dismantle one concrete staircase and use the resulting space for the room above. Although the effective gain in space is small, the room next to the staircase is already relatively small (also due to the sloping roof) and should function as a full-fledged children's room in the future.
First, a few photos for a better assessment of the situation:
My amateur idea was to first remove the wooden stair treads and the handrail, then place four steel beams on the concrete stair treads at the edges. Afterwards, insert a ceiling over the steel beams at the staircase. Subsequently, remove the walls at the staircase adjacent to the current bedroom and relocate the door.
What must be considered in such a renovation? Is it feasible this way, or are there alternative solutions? What kind of costs should be expected for such a project? Should new walls be built with sand-lime brick or should the new wall be constructed in drywall?