It will be September 2015 in my area that a perfect shitstorm of lack of school places hits my area.
We have one of the highest density building projects in the whole country going on right now.
In September 2015, not only will the intake for Primary schools be at their highest ever (requiring an entire 2-FE Primary school) through both higher levels of birth AND influx of families into brand new housing, BUT the current 'largest' school year, which has bulge classes, and classes well in excess of 30, will be starting Secondary school. We also need a new Secondary school for 2015!
I am particularly concerned, as I will have DS2 starting Secondary in September 2015, AND DS3 starting Primary at the same time. So I could be facing a Secondary age DS2 without an accessible Secondary place at the same time as having DS3 without an accessible Primary place, with no way of getting either of them to these schools, as DS2 has SN's and won't cope with public transport alone (but will still be in MS school), and DS3 ALSO has SN's...and I can't drive due to disability.
Frankly, I'm shitting bricks and trying to ignore it!
Today a site has been found for the new Primary school - but it is too far away to have any effect on the intake of the schools that could be considered OUR local schools. Still no firm plans for Secondary places, despite the fact that the LA has known for 5 years already that the local Academy will be unable to cope.
Our towns infrastructure doesn't support public transport on time to non local Secondaries, because the traffic gets snarled every morning at a bottleneck in both directions, preventing bus travel to other Secondaries.
Should be fun then, they have 2.5yrs to find a site AND build a Secondary - problem is, they already KNOW they are working over a year behind schedule and it won't be open in time for September 2015. 
So quite what will happen to DS2'a intake is beyond me...
September 2015, current conservative estimates show that there will be a shortfall of between 127-157 Primary places in one end of the town alone, and a shortfall of around 135 Secondary places. And that's working in the LA's rather hopeless formula that allows NO children in flats that are being built, ONE child in 2-bed houses that are being built, 1.5 children in 3-bed houses that are being built, and 2 children in the few 4-bed houses that are being built.
My experience in this town is more like 2 DC's in flats, 2/3 in 2-bed houses, 3/4 in 3-bed houses, and anything from 4-10 DC's in 4-bed houses...
I think their estimates are going to be found to be wildly inaccurate, even allowing for houses where no school age children are resident...
Like I said, a perfect shitstorm approaching...