The apartment of Gaspard is charming on a good place in the city. It's not so big, especially the kitchen is very small but the entrance and the apartment are charming with old details like a wooden floor and a beautiful ceiling. It's just a 20 minutes walk to Sacre Coeur and metrolines 4 and 12 are very nearby. You can park for free in St Ouen. Not in all the streets but when you look on the Seety app you can find the green (for free) streets where you can park for a maximum of 3 days.