Im not in your country, but I had a similar idea a few years ago where I wanted to get 3 Catholics to share the 4 room apartment.
The idea is a great one, since my neibhours who were not remotely catholic at the time were neibhours from hell. I eventually had to move, it was a complex of apartments and I moved several times, but everywhere it was the same, drunken, ignorant, violent neighbours. I would not have had that problem if my neighbours were devout Catholics and went to bed at a reasonable hour.
This idea is worthy of a very big organisation. It should be one with a database that does checks and allows you to locate other Catholics by area so you can live in the same place.
Someone should put this idea into practice. I ought to do it myself for my own country.
