The Department for Education advises that leave of absence can only be granted in exceptional circumstances.
If you decide to take your child/children out of school for this period you may be subject to a Penalty Notice issued by the Local Authority on your return. Under the Anti-Social Behaviour Act 2003, Section 23(1), the issuing of a Penalty Notice incurs a fine of £60.00 per child if paid within 21 days rising to £120.00 per child if paid after 21 days but within 28 days. (NB. In the case where the penalty has not been paid within 28 days of issue, the case may be escalated to prosecution in Magistrates Court for non-school attendance)