ᐅ Ideas for Designing a Single-Family Home on a Sloped Site. Tips Welcome.

Hello everyone,

I’m new here but have been reading your posts with great interest.

Now to the topic:

My wife and I would like to build a single-family house on a sloped site. There are some regulations regarding the development plan (36-42° gable roof, knee wall 0.25m (10 inches), boundary fencing, etc.).
The plot—actually two plots combined—is about 1,100m² (12,000 sq ft) and slopes downhill.

Our idea is to enter the house from the street level, then go down to the living area to access the terrace outside.
What we want to avoid is the impression that you’re going down into a basement.
Later in life, the lower floor could be converted into the main living area with access around the house.

I’m quite handy and have many friends and family members working in construction, so we plan to do a lot ourselves.

What’s also important to us:
I need a large workshop. My wife would like an open staircase with a void space above. Two children’s rooms and large open-plan spaces. A small fireplace in the living room.

Housebuilding info:
Preferred heating: pellet stove
Hollow brick 48.5cm (19 inches) without insulation?
Underfloor heating, solar panels

Attached are self-drawn plans based on our ideas. It would be great if you could share your opinions on them.

So on a sloped site without concrete walls?
We have Dad’s roof set up just like yours, and our living space is also in the basement, with the garden to the south.
On the slope side, we have only concrete walls at the bottom. I’m not sure if I would have them built using traditional masonry.
What is the container actually supposed to cost? That seems like quite a lot per cubic meter of enclosed space from what you’re showing... the price is bound to make you dizzy.
Why pellets? Are there specific reasons for that?

Thanks for the replies.
That's right, the slope foundation should be made of waterproof concrete, which was overlooked. How will the transition to the masonry be handled?

Does the building seem too large?

I have good experience with pellet heating, and many friends nearby with whom a joint delivery would be worthwhile. We also calculated the space requirements based on pellet heating – if the heater is smaller, I still have storage space.
Alternatives to the heating system?

So, for us, insulation started from the basement with 16cm (6 inches). The rest was then insulated with 24cm (9.5 inches) and 16cm (6 inches) External Thermal Insulation Composite System (ETICS). The transition to the masonry occurs only after a few meters (meters) around the corner, where the walls are exposed.

We have a gas boiler, which was the compromise. Initially, we considered an air-to-water heat pump. But since we had to build three floors and according to the development plan, there should be a pitched roof, we ended up with 1000m³ (35,300 ft³) of enclosed volume, and the heating load was 9kW. I thought we could get lower. Also, our garage is included in the thermal envelope on the ground floor, which didn't make things easier.

So, I think you’re planning a large building… but it would be easier if you could upload your plans as JPG files. Working with PDFs is quite cumbersome to view.

Could you please convert the PDF files to JPG and fill out the questionnaire?

https://www.hausbau-forum.de/threads/grundrissplanung-unbedingt-vor-Beitrag-Erstellung-lesen.11714/

At first glance

Attic
The children’s room doesn’t work. 20 sqm (215 sq ft) sounds like a lot, but with the knee wall and the roof slope, there is hardly any standing height. Draw in the 2-meter line (6.6 ft).
The bathroom also.
The hallway is extremely large for no purpose.

Ground floor
Many hallways, even if they are intended for reading and working. Why not have a separate office?
If it’s a reading corner, then there should also be space for shelves.
The bedroom, dressing room, and bathroom are small in relation to the floor area.

Basement
Spacious.
What’s the point of a bunker where you feel claustrophobic?

Very large house, almost bulky, with very few rooms and those are very small. It could be much smaller without any loss of quality. Definitely check the 2-meter line (6.6 ft) in the attic. It should be similar to ours, and in that case, the rooms just don’t work.

On the slope side, we have a white wall, and the exposed walls are solid wood.

Your basement level is basically our ground floor. Garage below, building services, entrance, bathroom, and a multipurpose room.

The upper floor has one bedroom, two children's rooms, a bathroom, and a laundry room (where laundry is also done).

The attic is not finished, but it is within the thermal envelope.