10 Intangible assets

Total
£m
Cost
At 1 April 2014229.8
Additions64.2
Disposals(29.5)
At 31 March 2015264.5
Additions67.0
Transfer to assets classified as held for sale (see note 15)(20.6)
At 31 March 2016310.9
 
Accumulated amortisation
At 1 April 2014119.6
Charge for the year29.0
Disposals(29.0)
At 31 March 2015119.6
Charge for the year31.2
Transfer to assets classified as held for sale (see note 15)(2.3)
At 31 March 2016148.5
 
Net book value at 31 March 2015144.9
Net book value at 31 March 2016162.4

The group's intangible assets relate mainly to computer software.

At 31 March 2016, the group had entered into contractual commitments for the acquisition of intangible assets amounting to £8.3 million (2015: £2.3 million).

Company

The company had no intangible assets or contractual commitments for the acquisition of intangible assets at 31 March 2016 or 31 March 2015.