Old maps of Carcassonne

A selection of the old maps of Carcassonne available on gallica.bnf.fr / Bibliothèque nationale de France

The French National Library of online resources is an absolutely amazing resource full of fantastic maps, books and images as well as many more resources.

If you are researching the history of your house in Carcassonne or any villages in the Aude you can find the Departmental Archives for the Aude at https://archivesdepartementales.aude.fr/

The population census returns are here https://archivesdepartementales.aude.fr/recensement-de-la-population
So you can search by year and then for your village or town and then your street and see who lived in your house. 

There is helpful info on https://archivesdepartementales.aude.fr/fiches-daide-la-recherche with regards to how to research houses.

There is also a map compare option on this site to show what the older maps of where are researching look like https://remonterletemps.ign.fr/comparer/?lon=2.352041&lat=43.217128&z=16.7&pointer=true&layer1=8&layer2=10&mode=split-h