13. Port Zone Volume Two 13.3.6. Maintenance, repair or replacement of a building or structure in the coastal marine area. 13.3.6.1. In the case of replacement of a building or structure, the original building or structure must have been lawfully established. 13.3.6.2. There must be no increase in the height, size or scale of the building or structure. 13.3.6.3. The effects of the activity occurring in or on the replacement building or structure must be the same intensity and scale as those occurring in or on the building or structure prior to its replacement. 13.3.6.4. There must be no change in the location of the building or structure. 13.3.7. Removal or demolition of a building or structure. 13.3.7.1. Where the building or structure is in the coastal marine area, it must be removed in its entirety, including piles and any subsurface structures. 13.3.7.2. Material removed or demolished from a building or structure must not be disposed of in the coastal marine area. 13.3.7.3. Foreshore or seabed material must not be removed from the coastal marine area. 13.3.8. Marine navigational aid (including lighting), and any supporting structure. 13.3.8.1. The erection or placement of a marine navigational aid (including lighting) must be carried out by, or on behalf, of Maritime New Zealand. 13.3.8.2. Prior to installation, the GPS mapping co-ordinates and a description of the marine navigational aid must be provided to the Harbour Master. 13.3.9. Replacement of a submarine or suspended cable or line. 13.3.9.1. A cable or line that is being replaced must be removed from the coastal marine area. 13.3.9.2. A replacement cable or line must be laid or suspended in the same location as the cable or line being removed. 13.3.9.3. A replacement cable or line must be put in place within 1 month of the removal of the original cable or line. 13.3.9.4. A cable or line must be laid or suspended by, or on behalf of, a Network Utility Operator. 13.3.9.5. Prior to installation, the Network Utility Operator must provide location co-ordinates and details of a replacement cable or line to the Council. 13.3.10. Temporary structure or equipment for scientific monitoring purposes. 13.3.10.1. The structure or equipment must not be located within the Port Zone for longer than 31 days in any calendar year. 13.3.10.2. The structure or equipment must not exceed 2m in length, 2m in width and 1.5m in height. 13.3.10.3. Prior to installation, the GPS mapping co-ordinates and a description of the structure or equipment must be provided to the Harbour Master. 13.3.10.4. The structure or equipment must not adversely affect navigational safety. 13 – 8