That looks like a great place. I would really enjoy seeing the non-touristy places even as a tourist. Excellent photos too.
In Paris the majority of the tourist places are in the first 7 arrondissements. Which basically means the centre of the city. Most people don't leave this area when they visit because they're typically here for a short time.
I may have mentioned this already but the arrondissements start in the centre and spiral out in a clockwise rotation.
The inner ones are a bit small and others get bigger as you go out. The border of Paris is the Periphique which is a 8 lane road that circles traditional Paris.
Typically once you're away from the first 7 arrondissements you're in 'real' Paris but again depending on neighbourhood. Some are more affluent than others. Though keeping mind 'normal' people live all over Paris. You don't necessarily have to be rich to live in the popular first 7 arrondissements.
The place I mentioned, Saint Denis is in the 10th arrondissement near Gare du Nord which is where the Eurostar from London comes in.
If you watched the movie Amelie the the canal she lives near is just east of that, Canal du Saint Martin.
The 9th and 10th are up and coming areas. Saint Denis is an interesting spot as it has a very eclectic and diverse group of people and simply by street the feeling changes and the hustle is different.
I think eventually this area will change but probably another 5 - 10 years.
I've been meaning to do a tips post on here for anyone planning to visit Paris and France...