I found a really nice nursery for DD, a 5 minute walk away- I phoned admissions to see how they measure distance, they said 'in a straight line'. Looked on directgov schoolsfinder and all good, it said that we are 500m away.
Unfortunately, nursery have rang this morning to say that we have come back as 800m away, so no chance of getting in 
I know there's nothing we can do, but am gutted, it was lovely.
So, to avoid future disappointments, does anyone know how they actually measure distance? Quickest walking route? It sure as hell isn't in 'a straight line'...