Floor plan multigenerational house conversion old barn

Is the front door also going to be on the south side? Are you replacing the base slab? For example, we considered it necessary. The existing base slab lay directly on the marshy ground, with no protection against groundwater and no reinforcement. Moreover, part of it was the old stable, so the base slab had to be renewed anyway. I ask because the floor level could change as a result, depending on how far you can excavate. The structural engineer and architect gave us a maximum depth here. For us, with a formerly 2.3-meter height, it’s really tight (though with underfloor heating) with the front door, but it just about works ;)

Initially, I wouldn’t worry about the budget. We are working with a much lower budget but, as I said, only modernized the upper floor, and the roof is in good shape. There haven’t been any really nasty surprises so far either. But I’m not an expert, and the roof alone will certainly cost a lot.

To be able to address the floor plan, a few questions: What are the rooms without windows supposed to be used for? How will they be ventilated? I’m thinking especially of washing machines, dryers, hanging laundry, etc., all of which cause moisture. Is there going to be a children’s bathroom on the upper floor, or will the three children share your bathroom? Do you really have no option to use the gable side and the south side?

By the way, who said the roof has to be completely renewed? Has a building inspector, architect, or structural engineer been involved? We developed a rough plan for our renovation with the latter and now only call them as needed. For example, our bricklayer wanted to do interior insulation with normal aerated concrete and an air gap. That wouldn’t have been ideal. Maybe it would have worked, maybe we would have soon had moisture damage. Our architect then put a stop to that. Especially as laypeople, but having good support from many craftsmen in the family, we are glad to have the opinions of the architect and structural engineer. I like to compare that with the opinions of the executing trades. If there are disagreements about execution, they can be worked out. But the decision still has to be made by us.

Ergo eaves gutter bottom edge. This is probably less than 2 m from the planned top of finished floor. Remove old floor and immediately gain 20 cm.

I imagine a fictional 2-story flat roof extension that represents a kind of bay window. I don't know what to call it.

I imagine a fictional two-story flat-roofed extension that represents a kind of bay window. I don't know what to call it.