Your wishes for a development plan

What I find really worst about new housing developments: when all the houses are the same color. In the past it was the red roofs, now it’s anthracite. The question is whether this can be avoided by allowing more colors? Or will the majority still follow the current trend?

This is one of the few points that is actually free in our housing development. Of the approximately 50 houses standing so far: 1 red roof and red windows 2 red roof and wooden windows 2 anthracite-colored roof and wooden windows 45 anthracite-colored roof and anthracite (or white) windows

So yes, the absolute majority follows the current fashion

I would definitely choose a fairly central spot as a parking space for carsharing and other-things-sharing (for us: bicycles and trailers for cars on request), even in rural areas. Even if it is rarely used in the countryside at the moment. Without such an offer, it will never be used. Somehow, you have to start. And you would gladly give such things a prime spot.

Additionally, centrally located and affordable infrastructure for e-bicycles and possibly cars.

From my point of view, parking spaces could be reduced.

If all houses are the same color. In the past, it was the red roofs, now it is anthracite.

The question is whether this can be avoided by allowing more colors?

Or will the majority still follow the current trend?

Yes, they do. Red roofs are also allowed here. There is 1! roof that was done in red :cool:

It’s about fashion; here the B- or design framework has adapted, but has not excluded the conventional.
What is being built: contemporary! I find the word fashion somewhat misplaced.

It’s also about money: the BUs accept the “fashion,” offer colored windows and 30/60 tiles at no extra charge. If they only offer it with a surcharge, customers will look for another company. And it is accepted and built cost-neutrally by the builder.
For us, it was also a causal chain: red clinker was never an option, sandstone too expensive, so plaster in white. Bright was a requirement, white was then allowed. Contrast for the windows was seen and ordered in gray. Suitable for a striking roof shape: gray roofing.
The front door is made of wood and can then be changed every 5-10 years :)

With us, for 4 semi-detached houses, there are 7 companies ;-)
That’s the crucial difference.
Friends of ours built half a semi-detached house there and I didn’t really hear anything negative about it.

What is the "crucial difference"?
It seems that in one case the concerned homeowners refrained from building according to the motto "Am I my brother’s keeper" as if the flood was going to come after the shared boundary, and from demonstrating individualism by stubbornly sticking together something unsuitable. And I guess in your example of the three mixed-heritage semi-detached houses, these are not the ones that were built in the worst-case scenario mixed stone/wood, mixed with/without basement, with different roof shapes, and “the one with a basement only starts when the one without basement is already finished.” You can avoid a lot of trouble by not adding up all possible stupidities.
By the way, when I talk about semi-detached houses, I’m not advocating identical twins, but merely coordinated planning with preferably only a shared house profile at the joint - separate contracts and even different materials are by principle not a hindrance!
How many of the semi-detached houses in your example would have noticeably different building costs and homeowner satisfaction if both neighbors had chosen the other’s building contractor?

What I find really worst about new housing developments: when all houses are the same color. In the past it was red roofs, now it’s anthracite. The question is whether this can be avoided by allowing more colors? Or does the majority still just follow the current trend?

Fashion is always the easiest way to keep up with the times without developing one’s own taste. By the way, the majority of development plans don’t specify colors at all – those who usually start with the ideal of prescribing as little as possible and only want to choose a common denominator frame that ensures no completely out-of-place elements against regional culture are built, and then someone crowed “oh no, but we can’t do without the classic essentials.” And boom, in the end the plan had both: shape AND color regulations, for the roof tiles almost down to the exact order number. That’s what I mean by “where something is poorly done, there is usually a well-meant attempt not far behind.” The multitude of anthracite windows, by the way, is only in the very rarest cases due to development plans forbidding bright colors.

How many of the semi-detached houses from your example would have had noticeably different construction costs and different homeowner satisfaction if both neighbors had chosen the other's contractor?

So in the example of our friends, they had an offer from 2 general contractors for building together and separately, and the price was exactly the same both times. Only €500 less for site setup and another €500 if they had shared the construction power box. And the civil engineer said it could be up to a thousand euros cheaper. But €2,000 on a construction sum of €500,000 is ridiculous. I would have preferred to choose my construction company freely. In this case, one would have only been able to start a year later, which alone would have amounted to over €15,000 in rent for our friends. Compared to that, €2,000 is a joke. But in this case, both are solid houses with basements, so apparently there was no technical problem with that.

It's about fashion, where for us the B- or design framework was followed, but conventional was not excluded. What is being built: contemporary! I find the word fashion somewhat misplaced.

I find that a very important distinction from you, "fashion" or "contemporary," although I don't manage to separate them cleanly. I need to look at the definitions. From my point of view, the dark roofs make sense, for example, because dark solar modules are installed on them, and in my opinion, these harmonize better with dark roofs. We will nevertheless choose a red roof according to our personal taste, since the solar modules will only be installed on one side.