Ask an Property Solicitor. Get an Answer ASAP.
Every council has an option to purchase the council house you reside in, this is known as a right to buy. You will need to contact your council and see if you qualify for this and if so, you can purchase the property at a discounted rate.
Re your bad credit, I would contact a mortgage broker / financial advisor to see what your options are in terms of lending. If possible, I would consider any options you may have in terms of getting a friend or family member loaning or gifting you any monies to help with a deposit.
I hope this helps and please do leave positive feedback. If I can assist with anything else, please do let me know.
No problem, best of luck!
Please do leave positive feedback when you have a moment.