Parents have to fork out up to 60pc more to buy a house near a top performing non-selective state school, a Telegraph analysis has revealed.
The average price of a house in the same postcode sector as a school in the top fifth of the country for GCSE results is £268,000 according to more than 900,000 Land Registry sales registrations in 2016.
At the other end of the scale, a house near a school in the bottom fifth of performers, costs £100,000 less - at £168,000.
Earlier today, Theresa May unveiled plans for a new generation of grammar schools, announcing that £320 million has been set aside in the Budget to help end the “brutal and unacceptable” truth of selection by income.
The Prime Minister, who has made grammars a key part of her education policy, will fund up to 140 new free schools, many of which are expected to become grammars.
The brutal and unacceptable truth is that for far too many children in ordinary working class families, the chance they have in life is determined by where they live or how much money their parents have
The move to make grammar schools more widely available stems from the idea that the state school system penalises poorer families because house prices near top state schools have been driven up by wealthier families who can afford to move into the catchment area of these schools.
Writing in The Daily Telegraph, the Prime Minister said: “The brutal and unacceptable truth is that for far too many children in ordinary working class families, the chance they have in life is determined by where they live or how much money their parents have.
“It is selection based on house prices and parental income, because when you are working two jobs and struggling to make ends meet, it is no good being told that you can choose a better school for your children by moving to a different area or paying to go private."
The gap of £100,000 between houses near top performing schools and those at the bottom of the league table will in part be driven by the fact that house prices in London and the South East are higher than in the rest of the country.
Schools in these regions tend to do better on average in league tables compared to those in the North of the country.
However, even on a regional level the gulf between the value of properties near good and struggling schools is stark.
In the capital, houses in the same postcode sector as top performing schools sold for an average of £457,000 in 2016 while houses near struggling schools went for an average of £400,000 - a gap of £57,000.
Proportionally, this was actually the smallest differential for any region in England.
The biggest gulf, based on the average value of properties in each region was in Yorkshire and the Humber where houses near top schools cost 59pc (£70,500) more than those near struggling schools.