Land and
buildings
£m
Fixtures,
fittings
and
equipment
£m
Payments on
account and
assets in
course of
construction
£m
Total
£m
Cost
At 1 April 201672.9205.2278.1
Additions5.012.50.217.7
Disposals(0.6)(2.6)(3.2)
At 31 March 201777.3215.10.2292.6
Reclassification from intangibles4.44.4
Additions3.613.91.819.3
Disposals(0.8)(4.2)(5.0)
At 30 March 201880.1229.22.0311.3
Depreciation and impairment
At 1 April 201638.0132.8170.8
Depreciation and impairment for the period4.816.821.6
Disposals(0.5)(2.1)(2.6)
At 31 March 201742.3147.5189.8
Reclassification from intangibles0.40.4
Depreciation and impairment for the period5.717.923.6
Disposals(0.7)(3.1)(3.8)
At 30 March 201847.3162.7210.0
Net book value at 30 March 201832.866.52.0101.3
Net book value at 31 March 201735.067.60.2102.8

No fixed assets are held as security for external borrowings.

Included in the above are assets held under finance leases as follows:

Land and
buildings1
£m
Fixtures,
fittings, and
equipment
£m
Total
£m
As at 30 March 2018
Cost12.73.015.7
Additions0.60.6
Accumulated depreciation(7.1)(1.0)(8.1)
Net book value5.62.68.2
As at 31 March 2017
Cost12.72.515.2
Additions0.50.5
Accumulated depreciation(6.6)(1.4)(8.0)
Net book value6.11.67.7
  1. Relates to the Halfords support centre building lease, which expires in 2028.

Finance lease liabilities are payable as follows:

Minimum
lease payments
2018
£m
Interest
2018
£m
Principle
2018
£m
Minimum
lease payments
2017
£m
Interest
2017
£m
Principle
2017
£m
Less than one year2.00.71.32.20.81.4
Between one and five years6.92.34.67.02.44.6
More than five years6.81.15.77.41.46.0
15.74.111.616.64.612.0