You can find several parks nearby where children can play different games. The nicest park called "jardin des plantes" is just close to the house. If you feel like driving to the seaside, it won't take you more then 15 minutes. There are several manors, castles and nice gardens visit in this area. Caen well known for its "Memorial" for the peace, and its two abbayes (Guillaume le Conquérant) is quite near Deauville, Trouville, Honfleur, the D-Day beaches, Mont Saint Michel, Saint Malo and only two hours far from Paris by train or motorway.
Normandy, highly prized by Parisians, is worth the detour!!!