I think your parents, OP , lived in a pretty affordable area if they could afford that on 1 teachers salary
i married in 1990. Late twenties, exh in his 30s. Both STEM graduates in STEM jobs. We paid £82k for a run down 2 up 2 down, in south east. But interest rates were at 17%. We never paid as much on monthly mortgage payments ever again as we did then. We nearly lost the house twice as unemployment was also high, and exh loses his job twice. We were lucky when we sold in 1994 not to be in negative equity. It was a massive stretch for us
I think two profound political/financial changes hit in 1960-/1980 to make house prices outstrip single earners.
- the sale of council house stock under right to buy, coupled with mortgage tax relief to incentivise sales. First generation of council tenant bought their homes, then that stock merely moved back into tenanted rental accommodation, but this time as private landlords with no rental control or tenancy security. This was not anything but a cynical political move made by thatcher to brown property investment and financial insistiutes in this country. Moving money into hands of wealthy private landowners.
- the introduction of joint mortgages to married couples when the ECOA was introduced in 1974.
it was not possible by mid 1980 and 1990s for most young people to buy a property on their own in their twenties, contrary to what majority of younger people think now. I was well paid graduate, in pharma. I was married and 29, and with older husband to be able to afford a two bedroom run down terrace.
However, it goes back earlier….because of the ECOA, My parents were teachers and moved from south to north in 1977, they utilised the rights for mums income as a teacher to be included in mortgage, they needed those two incomes even then to afford a four bed house for the 3 teens they had. And agian bought a fixer upper to afford that. If the ECOA hadn’t been bought in they’d not have been able to afford that.
Prices had already increased just in few years prior to that the ECOA had the reverse kickback, once wives wages were taken into account, married people could offer more to get house they wanted, and as a result house prices increased. They were held back in mid 1970s a bit due to recession factors, but by 1980s and thatcher governemnt, and sale of council stock, the housing market became hot and has never cooled- too many people rely on property as investments now. Including every single one of us who has a private pension fund - which is most working people now. The whole financial service industry is propped up by property investment.