Land cost is much higher in the UK because population density is higher and because of 'green belt' laws stopping new builds.
First time buyers can't afford anything, especially in the South where all the jobs are (near London).
That said I live in a house built in 1935, which is common for this area. It's still standing, functional, and warm. The house we lived in when I was in Texas was brand new on moving in yet was letting BIG spiders and even snakes in after 5 years because it was made out of cardboard on a wood frame instead of real bricks.