Your child will normally start school the September after they turn 4 but some schools do take children on in the Easter after if they have missed a September start. They have also recently announced that parents will be able to defer their child starting school at the age of 4 until the following year when they are 5.
Choosing a school for your child can be a daunting process as you may not have had much contact with the local schools previously. You usually need to apply for a place at your first choice and then possibly make a note of your second and third choice in case your child cannot get in to the first school. When choosing these you will need to consider travel arrangements and many parents also think about whether their child will be going to school with their friends from nursery or play group.