Drainage Plan Locations Across New Zealand

Why drainage records differ between authorities

In New Zealand, drainage records are not held in one national system. Each council keeps its own property files, and in some centres a separate water provider — such as Watercare in Auckland or Wellington Water in the Wellington region — holds the public network mapping. One council's private drainage plan may combine sewer and stormwater information on a single drawing, while another keeps as-built drawings inside a wider property file. Some records are digital; others remain on paper. That is why every request starts from the property address: the location determines which authority holds the records and what can be requested.

Plan types available nationwide

Three request categories are available for New Zealand properties, subject to what the relevant authority holds for the individual address:

• Property Drainage Plans — Looking for a property drainage plan in New Zealand? Search your address to request available private drainage, plumbing and as-laid records.
• Wastewater Network Plans — Learn about wastewater network plans showing recorded public sewer mains and associated assets. Search a New Zealand address to check request options.
• Stormwater Network Plans — Check recorded public stormwater drains, pipes and related assets near NZ properties. Learn how these records differ from private drainage drawings.