ᐅ Terraced Corner House Floor Plan in Development – Any Suggestions for Changes?

Hello dear forum members,

we are building an end-terrace house measuring 7 by 10 m (23 by 33 ft) without a basement. It will have 2 full floors and an attic above. Now the question is which roof we should have. I was shown a house with a 38-degree gable roof without a knee wall, which I found very nice in terms of the feeling of space. Now we have been informed that only a 35-degree gable roof is allowed for us, but with a 30 cm (12 inches) knee wall. What I didn’t realize was that our attic has a maximum height of only 63 cm (25 inches). So the attic space is very low. Now I have no basement and hardly any storage space and I’m a bit frustrated because the building permit application is now in front of me. I initially agreed that this was okay, but I would prefer a 1 m (3 ft) knee wall. The development plan only allows a maximum of 30 cm (12 inches). I’m really unsure what to choose... I don’t want to spend unnecessary money if it doesn’t make a big difference since we have a very large plot and can build storage in the garage, barn, or garden house...

What would you do?
A. 38-degree gable roof or
B. 35-degree gable roof with 30 cm (12 inches) knee wall or
C. 35-degree gable roof with 1 m (3 ft) knee wall, applying to the city office...

We would need to submit a request to the building authority to increase the knee wall to 1 m (3 ft), which would mean more effort, bureaucracy, and delays... I don’t know what it would cost or if it’s even possible, but it’s weighing on my mind because I only read online about people who built houses with a knee wall on the attic. The extra cost of $3,000–$5,000, if that’s roughly the amount, would be worth it to me if it creates nicer rooms and I get a higher attic for storage.

The second problem is that the plot is much lower than street level. We are paying an extra €10,000 to fill the plot with gravel up to street level. Now the house will be built just slightly above street level, so there will be a step at the entrance. There will be a total of 3 terraced houses, and we have the end house. In our row, two finished terraced houses from other builders are already standing next to ours. However, these are built 1 m (3 ft) above street level with 3 or 4 steps higher, so they probably look taller overall. I find this visually unappealing and also, personally, I want our house to be higher.

What are your thoughts on this?

I’m also uploading my floor plan, which I think is finished. I don’t understand how high the ceilings are; can someone tell from the plans? Inside the rooms, how high are they? And generally, do you notice anything about the floor plan?
My building permit application is ready, but I want to change it after all. It doesn’t suit me, and I’m sure it will cause trouble with the company if they have to make changes for us, but I want to be able to decide again and just need some feedback here.

Looking forward to your support!

Best regards