Both parents deceased, house never registered with Land Registry

Both my parents recently passed away within a month of one another. They had owned and lived in the same house since 1959 which they had as a new build at the time.

My two brothers and I have inherited the property jointly according to their wills but as it had never been sold on before it has never been registered with the Land Registry. I realise we will now have to do this to enable us to sell the house but what documents can we provide? We only have a few scraps of paper showing mortgage payments from 30/40 years ago and a document showing the sale of the land before the house was built. We have bills etc that show they lived there but no actual deeds.

We want to put the house on the market as soon as possible but realistically, how long is it likely to take to sort out the paperwork?

Thanks

A Flintan - sorry to read of your recent loss
Our online guidance explains how to apply to register it for the first time and is based on your having the deeds to confirm title. You'll need probate for the parent who passed away second and the death certificate for the other parent
Our Practice Guide 2 explains how to register for the first time where the deeds are missing
Once you have put the property on the market and found a buyer you can request expedition to reduce any wait time 
Please note that any application without deeds is going to take longer to process as it will be based on a claim as to ownership. I would recommend seeking legal advice with regards what evidence you have/need to get a successful registration and what impact that may or may not have on the ability to market/sell the property also 

Thank you so much for your prompt response. I expect we'll strive for months to confirm title and register the property only to find the deeds in a box in the loft! 

Thank you again.

A Flintan - that can often be the case so a thorough search, inc family solicitor and bank is always advisable. The 'deeds' can be hidden away in the bottom of an old chest of drawers or a box in the loft as you state. It's a generational thing in my experience 

I'm the beneficiary of my mother's house but my father is still showing on the property register, even though he died twelve years ago. My parents were joint owners (not in common). I'm not sure how I transfer the property as form AP1 specifies assent from a 'sole owner'. Any advice much apreciated!