OP there may be help available regarding emergency housing if you are homeless due to DV. I would contact Shelter and have a chat with them about it and they will advise. Here's some info from Shelter on housing options due to DV. If you have a child with you, you're considered priority need. It might be worth contacting your council housing department and getting advice.
If you're currently waiting for him to kick off and are going to burn a list of items to pack, then I wouldn't wait. You can also find your local DV service here.
Stuff to pack for an emergency bag:
Identification
Birth certificates for you and your children.
School and medical records, including the telephone numbers of the school and your GP or surgery.
Money, bankbooks, cheque book and credit and debit cards.
Keys for your house, car, and workplace.
Driving licence (if you have one) and car registration documents, if applicable.
Prescribed medication, and vitamin supplements.
Cards or payment books for Child Benefit and any other welfare benefits you are entitled to.
Passports (including passports for all your children if you have them), visas and work permits.
Copies of documents relating to your housing tenure, (for example, mortgage details or lease and rental agreements).
Current unpaid bills.
Insurance documents.
Address book.
Family photographs, your diary, jewellery, small items of sentimental value.
Clothing and toiletries for you and your children.
Your children’s favourite small toys.
There are pet fostering schemes for those fleeing DV. Your dog can be temporarily housed until you sort out something more permanent. You can see more details here. Your local DV service will know of local schemes.
It's obviously better if you stay in the house and he leaves but that can be difficult without evidence. Shelter can give you more advice on that.