No it isn't very much, but the house is a hovol in a slum neighbourhood (I guess, looking at the size vs. value). It is 24d in rent each month for a not so fresh house in a not so good neighbourhood.
The house is large and could take as many as 9 people before being cramped (before Living Space Index becomes lower than average). Mathematically it can take 12 people (1200/5/20=LSI of 5). Your four guys will have a Living Space Index of 15. That is a lot but still the house hovel in a slum neighbourhood.
Thanks for the confirmation Fenhorn. I wasn't sure I was calculating things properly.