Dull place in which you might live (4)
I believe the answer is:
flat
This could be a double definition.
'dull' is the first definition.
(similar in meaning)
'place in which you might live' is the second definition.
'flat' can be an answer for 'place' (thesaurus). I'm not certain of the rest of the definition.
Can you help me to learn more?
(Other definitions for flat that I've seen before include "One at a meeting" , "Pressing implement" , "Horizontal" , "unexciting" , "Apartment; plane" .)