Looking thought e-bay N gauge I found a delightful image of a 3D resin Station - produced by Bigtrainsound - based in UK
The Grand Old Station Building as it is styled is £14.99 including postage and has a lot of potential way beyond a station, to proxy for a lot of colonial style high status buildings.
With a little tweaking to the architecture I can see it as the Residence in Khartoum, or any other "marker" building. An embassy, a small palace, a colonial admin building, military HQ in Middle East, Africa or even Far East.
The item code is 194016510882. Perhaps some talented forum user will add a picture to the thread?
This seller has a lot of other useful pieces such as statues and even small ships.
A number of interesting N gauge items on the site ( https://www.scenics.bigtrainsound.co.uk/ )
Here you go
(https://www.scenics.bigtrainsound.co.uk/gallery_gen/47546acaddfaa3653de3ea21f431e3c2.jpg)
Certainly looks the part !
Oooh, and a mosque
https://www.scenics.bigtrainsound.co.uk/49-n-scale-mosque#wbs1
(https://i.postimg.cc/KzTB6JKX/10mm-mosque.jpg) (https://postimages.org/)
Many thanks Ithoriel !
You can just imagine a sentry box outside and a cluster of officers on the roof veranda. The colonial architecture could even stretch to India and NW Frontier. A 10mm stables & barrack block at the rear with some of Peter Pig 15mm walls perhaps?
A couple of old cannon in the entrance lobby as guards?
Wow - just seen the mosque!!!!