Freehold for £100? That would have been a steal!
My flat cost me 5 times my salary when I bought it last year.
Its very common to find mortgage companies not lending to leases with sub 75 years.
And you are minted Mr Tunnie...

No, I have a huge mortgage! With a monthly payment to match (a 4 figure one!)
The problem today is that house prices bear no relation to wages. My father in law worked as a simple toolmaker.......but was easily able to afford a detached house on his wage alone. No overtime or second wage was allowed.....or needed.
I keep hear people saying that, and seeing it on the news. Thing is, if you put effort in you can buy without any trouble.
I graduated from Uni in 2007, got a job that year and started work. After about 2 years of setting into the job and getting used to working life I started saving.
I chose to stay at home in Northamptonshire & commute to London, although this was expensive (£550+ a month) - It was cheaper than renting.
In 3 years I saved approx £35k, some of it got spent on learning to ride a motorbike, snowboarding gear & holidays

Before anyone asks, no bank of mum and dad. I lived at home & saved!
2010 I bought my flat which was advertised for £215k, I put the deposit down, paid the fee's and moved in.
My parents helped me with furnishing the flat, plan was to sell the BMW to fund that, but Mother & FatherT very kindly stepped in to help me get the flat setup.
Might have something to do with the BMW staying at my parents, so it would be an excuse for me to go home once in a while

Mate I've known since School, he also is in a position to buy, but not done it yet, he works for BBC so is a bit cautious about buying at present!
My old Team Leader is now married with baby on the way, he just a couple of years old than me, they have 3 houses between them!
It can be done!