DIY floor plan design for 2 people

Good Sunday everyone,


There are actually such models with a permanently employed caregiver/household help who lives in the house, but that is not the reason for the basement apartment; it would only be a worst-case option in old age.
The house size has actually gotten out of hand – we hadn’t considered that – I also think we should get smaller and ultimately end up with max. 120-130m², also because of the construction costs.
Height specifications are shown in the initial post, there is no survey plan yet, east-west slope approx. 60cm / 10m,
south-north slope approx. 1.0m / 10m


I forgot to mention yesterday, I mainly use the workshop for my hobby – model building out of wood – besides the everyday tasks.
I meant something different about the parapet height, currently 1.5m rough construction measurement, so approx. 1.35m finished floor level; here one can try during the outdoor planning to enlarge the windows to reach a parapet height of 1.15m finished floor level.

We’ll take the other points, including the comments from , uncommented – there is probably a lot of truth in it – amateur design after all.
We should really wait for drafts from a professional first, maybe we will be positively surprised.
What would you write as a reasonable total area for basement and ground floor with guest apartment, wellness area, and workshop in the requirements catalog – we should at least make some rough guideline – is max. 250m² realistic?
Our other requirements you can see in our plans – and yes, we will keep those to ourselves; the planner only gets rough parameters!

Such models then also cost, all inclusive, 3,000 EUR/month. The pension must be quite generous for that.

The model Pflegeheim for 2 is more expensive

House size has indeed gotten out of hand - we didn’t have that on our radar - I also think we should become smaller and end up at a maximum of 120-130m², also because of the construction costs.

is a maximum of 250m² realistic?

I don’t understand these numbers now. 130sqm is not 250sqm. A granny flat, whether you call it a guest apartment or granny flat, costs exactly the sqm area it covers. Plus bathroom and kitchen, so expensive technology. In addition, it is practically, at least in your dreams, outsourced from everyday life, so not just simply used in the main house. As I understand it, your budget is limited. Deducting a flat rate of €120,000 - €150,000 for the outdoor area and additional construction costs, you can calculate how much space you can burn through. Burning through also stands for what you can and want to afford economically per month.

The model nursing home for 2 is more expensive

Including all ongoing costs for the house?

If both have to go into a nursing home, the house will be sold; with the 800,000 EUR you can pay for the nursing home for a long time...

For that, now 200,000 EUR are being "invested" in a granny flat that will remain empty for the next 25 years. I find that pointless.

Are there no photos of the property?

Is there a nice view?