Northumbrian Water had originally promised that the roof would be grass-covered to blend with the surrounding landscape. Residents living near the reservoir have lambasted Northumbrian Water, labelling the building an "ugly eyesore". Now we have tonnes of gravel on top of what looks like three football pitches." Another neighbour added: "At best it looks like a car park and at worst like a Soviet-style nuclear bunker. View 4 Images Locals also claim they've endured years of chaos from lorries and diggersSteve said: "Our house is about 25 yards from the reservoir building so we see it every day.