I have my own engineering office and know that there are big differences in planning services. Planning errors sometimes result in irreparable defects, higher construction costs, delays, and a lot of trouble.
Then secondly you know what you need (at least service phases 1 to 5, better 8), and first, I don’t understand where your difficulty lies in finding the right colleague (?)
So if you don’t want to build something exotic, most single-family house planners should suffice for you. I would take an architectural firm, not a loner.
It’s the other way around: single-family houses are a main focus for many solo practitioners, but for larger offices both a "blind spot niche product" (unless you want a " warns architect house") and unpopular because they don’t fit the cost structures of large offices. The more architects join to form an office, the larger their projects usually are.
You don’t have to look at all 2000 - someone who has their office near the property, for example, and advertises on their homepage or listing with house designs for single-family houses that appeal to you. This can also be a joint office, i.e., a company.
This is similar with architects as with construction companies: the web marketing engagement is roughly inversely proportional to whether it is a recommendable establishment. Optimal websites are usually optimized websites, by an architect of the CAD generation (which in turn has a high probability of being a botch job).
Wasn’t there once a report here about a larger multigenerational project that was accompanied by an architect(s’ office) in or near Munich?
I deliberately did not mention that, since this project – by the way
in Munich – is a complex multi-family house. And correspondingly planned by a larger office, see above. I would have said so if I knew a Munich single-family house thread here in which an architect was praised – but at least not from completed projects so far, unfortunately.
What does good or bad mean?!
Yes, that is the crucial point: namely where the priorities lie. Cost compliance, construction management, building technology, architecture, dealing with difficult conditions… that is a wide field as to whether an architect is "good." My former master was specialized in existing buildings and had a knack for craftsmen worthy of monument protection.
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In place of the OP, I would therefore approach architects (see industry directory or chamber directory) and ask if they would be interested and from when available. Just the note that at least up to service phase 5 must be provided will make the selection very manageable. I would start with those at the construction site, and then in the neighboring districts (e.g. Munich 808, 803, 801…). I take a similar approach myself as a professional architect finder.