Hi Inga, that's right. With AHO No. 42, the various services such as master, framework plan, etc. can now be calculated in a differentiated manner.

As far as I know, leaflet No. 51 has been replaced by AHO publication series No. 42 (so-called Green Issue) “Special Services for Area Planning Annex 9 No. 1-5 HOAI 2021 Focus on Urban and Urban Development Planning (Part 2 Section 1 HOAI 2021)”.

ISBN 978-3-8462-1392-6

Does anyone know more about this?

Is AK Baden-Württemberg the author of the leaflet 51? - Is this available royalty-free? Does anyone know that? projo would definitely have to check with the author, as this is obviously not a text of a regulation.

I would find that very helpful!

This calculation aid would also create an additional sales argument for urban planning offices and landscape architecture firms.