Architectural font (BIG Architects)

[Aneta Molska]

I'm looking for the font's name, which is usually used on architectural diagrams, also by BIG architects' studio as the example. 

[Ralf Herrmann]

Pretty small to identify. My guess would be Klavika:

https://processtypefoundry.com/fonts/klavika/

[Kevin Thompson]

Seconding Ralf’s ID of Klavika (the same typeface is used much larger on the title page of the presentation).