Louviers is a commune in the Eure department in Normandy in north-western France. Louviers is 100 km (62 mi) from Paris and 30 km (19 mi) from Rouen. Wikipedia
A place in France, Louviers is an interesting place to visit, given its unique culture, history and character. After your splendid visit to Louviers, you can proceed to an important near-by city of Paris. Attractions in Paris include Eiffel Tower, Musee D Orsay, Notre Dame Cathedral. Also, to reach Louviers, you'll have to take a flight to Paris; so its not really a detour. And even if it is, the city is worth paying at least a quick visit. Most online packages to this city are of 1-2 days.
Don't just take a trip, let the trip take you! Have a enjoyable time at Louviers.