Dental practice for rent as flat roof

The question would be how to realize the cheapest possible construction of such buildings so that it makes sense for all parties involved. Are there types that specialize in something like this?

You need an architect. And then you can search – but you can forget about modular construction of this size. The building is too small for that. G

Does the business case improve with two rented condominiums on top of the second floor?

Higher land utilization is almost always better. But think about the parking spaces, basement/storage rooms, separate access, etc. Does the plot even allow for such high utilization?

For the apartments, you could probably set €10 per sqm, for the practice €14. Can it currently be built so that it pays off?

You can calculate that yourself. If you leave out the land since you already own it, you can make the project look good on paper.
Are there still supposed to be incentives? Regulations on ancillary costs? Subsidies for tenant fit-outs?
200 sqm practice at €14 (gross or net? The doctor is usually a VAT offender, so you can’t claim input VAT deduction on construction). I assume gross.
==> €33.6K p.a.
2x apartments at 85 sqm each and €10 (rest = common areas etc.)
==> €20.4K p.a.
Total: €54K
For a 5% before tax and operating costs return, the building can then cost no more than €1.1 million. That corresponds to construction costs of €2,900/sqm including incidental costs. You won’t be able to build for that. So rather calculate with a 3.5% return BEFORE operating costs and taxes.
So no, the building really won’t be economical.

This is just a brief pragmatic example of why even in new residential construction such high rents are demanded to make a project profitable.

Now seriously, I’ll interpret this as you considering it an unwise endeavor. May I understand why?

Seriously, the area designation has to play a role, the property must still have allowable floor area ratio available, and much more. You need dentist seats in the district of the location and a good mix of dentists, dentists & specialists, oral and maxillofacial surgeons, etc., and for all that, front house locations are better. I don’t only do construction consulting but was also involved in the management of an MVZ developer. To me, your description sounds like a harebrained idea; it would probably be difficult to find investors for it (especially since the circle of shareholders is mostly limited to licensed professionals).

Seriously, the zoning character has to play a role, the property must still have available floor area ratio and much more. You need dentist offices in the district of the location and a good mix of general dentists, dentists & specialists, oral and maxillofacial surgeons, etc., and for all of this front building locations are better. I don’t only do construction consulting, but was also involved in the management of a MVZ developer. To me, your description sounds like a crackpot idea birth, it will be difficult to find investors for that (especially since the shareholder group is largely limited to professionals).

As I said, there is already a practice in the front part of the property, which is to be expanded with a separate building in the rear part of the property. There is space and available floor area ratio there. That also means that there is an office.

What do you think is the reason why the new rental apartment construction in DE has almost come to a standstill?

Is there already the dentist who wants to rent such a property?

yes, it exists, as said, the dentist who is currently in the front part of the property wants to expand

Then it will probably come down to a long-term lease, which is why I would specifically ask him for a floor plan or at least a draft. If it is optimal there, he will also stay with you.

Yes, indeed, we have already spoken with architects. Next, a dental depot will deal with the planning.

Then two specialized companies are entrusted with it. What are their results or the architect's opinion on the questions you initially asked?