A digital twin is a digital companion to a physical asset or network of assets. Conceptually a digital twin is an up-to-date and accurate copy of a physical object's properties and states, including shape, position, status and motion.  

At CoreLogic, we maintain New Zealand’s most comprehensive database of property, address and road in New Zealand.  This database is, in effect, a digital twin of the entire network of in use addresses across New Zealand.  It is relied upon by many organisations including New Zealand Police, Fire and Emergency New Zealand, St Johns, most major banks, the Insurance sector and utilities such as Chorus, Vodafone, Spark and Vector.  

Today the CoreLogic digital twin encompasses almost 2.25 million physical addresses in use across New Zealand attaching to over 2.5 million multi-part parcels.  Around 1.6m or around 70% of these physical addresses also receive postal delivery.

With a growing economy, population growth and a housing shortage, developments both in urban and rural areas are on the rise.  Usually around 4,000 changes are made to the digital address twin every week. These include address, property and road notifications from territorial local authorities, subdivision plans from developers and service locations from telecommunication providers.  We synchronise this data against legal address database from Land Information New Zealand (LINZ) as well as the postal address file (PAF) from New Zealand Post.  

We also maintain an ongoing dialogue with local authorities to validate addresses that are notified to us across all of our users.  In a typical week 1,000 addresses, more or less, are created in New Zealand.


New addresses added in May 2017

If we look at the month of May 2017, it is interesting to explore where the changes are occurring.  The map shows how much of the growth is dominated by Auckland (50% or over 2,500 new addresses in the month) with the second fastest changing region Queenstown Lakes representing only 10% of overall change across the country.

Christchurch City and its surrounding areas Selwyn and Waimakariri Districts continue to grow as the earthquake recovery efforts evolve into business as usual or the new Canterbury normal.


If we break the address information into land use it is clear that residential addresses make up the majority of New Zealand’s property with lifestyle addresses the next largest segment.  

Within the residential sector there is significant growth now occurring in apartments and units as well as a reduction in section size in urban areas. Whether it is real estate, banking, insurance, telecommunications, emergency response or the delivery of goods and services across the country - the New Zealand economy relies on reliable, accurate and inter-connected property, address and transport data.

At CoreLogic we are constantly sourcing, validating with authorities, checking and re-checking in use addresses, ensuring we maintain a high quality digital addressing twin that keeps pace with the changing face of New Zealand.  

Our address information is currently available as a service through AddressRight, and very soon we are also launching a new basemap series for web and mobile applications which will be another way of maintaining pace with the ever increasing rate of change happening across New Zealand. Watch this space!