building clear cleared development empty fences foundation work foundations groundwork land level levelling levels property ready for building sand sand pads suburban urban vacant vacant block foundation-work leveling ready-for-building sand-pads vacant-block bricks construction fencing preparation real estate solid wall angle angles appearances architectural architecture city cracked cracks dark decay deterioration Dirt dirty discoloration discolouration disrepair elements exterior external grime grimy neglect neglected old peeling-paint renovate renovation urban-decay weathered windows asphalt barrel build bulldozer caterpillar dig digger excavator lay machines not ready road roller steam track work