This proposal is for a combined front boundary wall and railings, with integrated laurel hedging, which seems like quite an expensive and elaborate proposal. This has been refused because the laurels will be planted in an elevated planter, and not the ground and so are unlikely to survive. With the best intentions, it seems that the planners have the best intentions of the laurels at heart. Maybe Box Hedging would be a suitable alternative, which lives happily in elevated planters.