Hi, I understand you do not have onsite parking, is it easy to park in the street or is best to park in a car park if so is it wise to arrange in advance of arriving.
Apologies for the delay. Personally, I would avoid taking a car into the centre of Paris. Far better to park outside the Paris boundary and get the train in. 20 euros for 3 days, so very reasonable.
Get an answer from Hotel de l'Avre staff and past guests.