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For a self-used property, my own standards come first. And not those of a bank

If the self-used property can also be paid for by oneself, its value as loan collateral can of course be disregarded.

No, that is agriculture ;-)

At least photovoltaic is not a commercial business in the sense of a commercial area. Let's put it that way ;) . You will be denied the building permit.

Thanks In my property, I want to live myself, but for the next 25 years it basically belongs to the bank first, and they also want their securities. And yes, no one knows what the future holds, but I do want a certain "security" regarding the house value, in case I might want/need to part with the house one day. I can also contribute a firsthand report on the topic from my circle of friends: Friends of ours, with two small children, also lived in a mixed-use area. Surrounded by a few residential houses and various businesses (including a freight forwarding company). Overall, it was rather quiet. The infrastructure there was also very good (supermarket, daycare, school). Nevertheless, they felt uncomfortable and like being on an "island." And that’s how I always felt whenever we visited. The atmosphere just wasn’t very cozy and inviting. That’s why they moved away as soon as possible. Of course, everyone has to decide for themselves and set their own priorities. I’d rather live in a mid-terrace house with a towel-sized garden in a purely residential area (for this, I’ll probably be virtually stoned now) than on 2000m² with a large villa between a beverage wholesale and a freight forwarding company. But everyone is different :)

Maybe one should really just be an official exhibition center for landscape gardeners, fence builders, and garden house sellers. Or if no one wants to officially thank with commissions. Register as an affiliate and write your own blog about the developed property with direct links to hardware stores, etc...

In this respect, the location only plays a role in real estate speculation. For a self-used property, my own standards come first. And not those of a bank or a developer.

One's own standards regarding the property actually begin with the location, not the house. I do not want to build my house in Marxloh just because the plots of land there are dirt cheap and the location is central in Duisburg.

Maybe one should really just be an official exhibition center for landscape gardeners, fence builders, and garden house sellers.

That can be done well. But you need a business, staff, and experience in self-employment. Otherwise, the place will be closed again very quickly and you will lose your entitlement to the company apartment. If the municipality is not completely asleep, you will receive mail from them when the business is defunct.