T1 Acer - Reduce crown by 1 - 2m.T2 Magnolia - Reduce crown by 3 - 4m.T3 Horse Chestnut - Reduce crown by 3 - 4m.T4 Holly - Fell to ground level.T5 Walnut - Crown raise by 2 - 3m. Reduce limbs that extend towards building by 2m.