Strangely enough I was watching the Good Life (filmed in the mid to late 70’s) just before I came on here and Tom had just been to see the bank manager with a proposal that the bank would give him £2000 per annum once he retired and the bank could keep the house once the Goods died.
Bank manager pointed out that the bank would be putting out £80,000 against their detached house, in Surbiton like the one above, with a value of perhaps £27,000 that may increase over the 20-30 years to £40,000.
I think property values may have risen a little more than expected since then.
Also, in the series Jerry Ledbetter has a house of similar value (£27,000) but a salary package of ‘£18,000, an expense account and a car’ stated in one episode. Now I know it’s not real but I assume the figures stated were somewhere near reality at the time, again showing the growing disparity between house prices and pay.