Running the numbers through a mortgage calculator, a 20 year mortgage with the minimum (10%) deposit on a house that costs £60,000 would have a monthly payment in the region of £300. Unless that's wildly wrong, the replies suggesting you can't buy with a minimum wage salary are off the mark; you certainly can.
If you think about it, there's no logical connection between one's income and ability to buy versus rent. Rental properties are bought by someone (a landlord) who hopes to pay off his own mortgage with his rental income, so the rent must at least cover the mortgage. If the sale prices of houses became very large in comparison with rent incomes then landlords would simply sell off their rental properties, which would reduce house prices again.
I suggest the main reason many people consider it hard to buy a house or flat is that their aspirations exceed their budget. They prefer to rent somewhere they really can't afford, paying a very large fraction of their income. After a time a 20-30 year mortgage with deposit seems unattainable because they are getting older, have no savings, and have become too comfortable in an expensive rental property to stomach a reduction in their standard of living.
People who live within their means from day 1 probably do not find it hard to buy a property provided they are in long term employment, regardless of how much they earn.