Radlett's schools are strong up to the age of 11, and then the town runs out of them. The primaries do well in end-of-primary maths. Nine in ten Hertfordshire schools are graded good or better. Radlett has no mainstream secondary. At 11, every child gets on a bus.
There are three mainstream state primaries in the area, and their average end-of-primary maths score, the Key Stage 2 scaled score, is about 107. Newberries Primary School and Fair Field Junior School are the names most local families will hear first, and St John's Church of England Infant and Nursery School takes the youngest children. Other schools on the local list include Radlett Preparatory School, Manor Lodge School and Radlett Lodge School. One of the town's former infant schools has closed, so ignore any older listing that still includes it. The Department for Transport's 2019 model puts the typical walk to a primary at about 12 minutes. Primary school here is a short walk with good results at the end of it.
Hertfordshire County Council's schools are the comparison Ofsted gives you. Across the county, Ofsted has graded 203 of 227 settings good or better, close to nine in ten. That includes 40 rated outstanding, 21 rated requires improvement and 3 rated inadequate. Those 227 are only the settings with a published grade, and the 226 not yet graded carry no grade at all, good or bad. The odds across the county are good, though the county decides who gets which place.
That's what matters for buyers. Places are given out under the county council's published admissions rules, and living near a school's gate earns no automatic right to a seat inside it, so the house nearest Newberries is still at the mercy of the rules. Sibling links, distance and each school's own criteria all come into it, and they change from year to year. Families who choose the house first and read the admissions rules second usually find out in April which order they should have done them in.
Secondary school is where Radlett hands the job to the county. The town has no mainstream secondary, so at 11 children go to schools in nearby towns, mostly on dedicated buses. The Department for Transport's 2019 model puts the public-transport trip to a secondary at about 25 minutes, about 14 by car and close to an hour on foot. Those timings are seven years old and based on services that may have changed since. The thing to check is the bus itself: ask Hertfordshire's admissions team which secondary schools children from your street have actually been offered recently, and whether a dedicated service runs to them. A town with excellent primaries and no secondary is training its children to commute, and they'll be good at it by Year 8.
For families with children under 11, Radlett's schools are a real reason to move here. After that, the county's schools are good enough that the bus ride costs little more than time.