The major streets are the following: Grande Rue, Rue De L'Église, Rue Des Rosiers, Route De Saint-Julien, Rue De La Fontaine.
In term of town halls you can find 2 places (like "Mairie de Lains", "Mairie de Dessia").
Are you looking for an apartment for sale/rent? Or interested by a house? You can check that on Figaro Immobilier.
Closest cities