Sorry, but I can't agree with the previous answer. Many council houses have been sold under right to buy legislation so often a single house in a row may be privately owned whilst the remainder are owned by the Housing Associations (who took over all Council housing stock some years ago).
There are 2 ways to find out:
1. Pay £3 on-line at the Land Registry for the title deeds which state the legal owner.
2. Knock and ask.