There is no such thing as a house having a universal value.  $300,000 may be a song in a steep market, but it may be top dollar for that neighborhood in Detroit. 
It's a bit tedious to hear folks from expensive markets cluck their tongues at less wealthy markets.  It's not a song where I live and incomes here aren't what they are in the urban centers of the coasts.
Ms. Franklin may have bought the home in the heyday of her career and that neighborhood, yet they both may have declined since then.  The landscape is certainly a sign that there hasn't been money spent lately on the place.
Here is the pic from the link in the OP:
		
		
	
	
Additional photos from another site: