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Database Title

12.3 Digital Cadastral Database
Keywords
Type1.
Type 11.		 Land, legal status
cadastral boundaries
Abstract This is a GIS database containing data on land parcels throughout New Zealand. It includes the geographic location, shape, area, land appellation and street address for land parcels and the legal definition of roads, road centrelines, railways and hydro graphic features. In addition the Digital Cadastral Database contains the definition of statistical mesh blocks which Land Information New Zealand maintains for Statistics New Zealand.
Geographical Coverage New Zealand
Dataset start date. Records date back to pre-1876
Dataset end date. Current
Status/currency. Complete
Update frequency. Daily
Maintenance. The database is funded from the Land Transfer Levy

 

Technical Evaluation

  
Parameters- what is measured
  • geographical location, shape, area, land appellation and street address for land parcels
  • legal definition of roads, road centrelines, railways, and hydro graphic features
Parameters- what is calculated N/A
Methods used to measure parameters The database has been compiled primarily by hand digitising from the Department's existing large-scale cadastral record maps. The database is added to on the daily basis. This will soon be replaced by a new system (Landonline) which will automatically check plans submitted by surveyors and amend the Digital Cadastral Database accordingly. The new system commenced in the Otago and Southland Land Districts early in 2000.
Secondary sources of data N/A
Scale of use. The scales of the maps which are digitised to provide the Digital Cadastral Database range from 1:396 to 1: 50,000. Scales of 1:792; 1:1000; 1:1584 and 1:2000 are predominant in urban areas. Scales of 1:7920 and 1:10,000 predominate in rural areas.
Number of records Unknown
GIS compatibility. This is a GIS database. A separate GIS exists for each land district plus the Chatham Islands.
Available formats for users. DIGITAL-GINA format (ASCII based)
Access constraints. A data license is required. A license from Statistics New Zealand is required for the mesh blocks data.
Measurement Accuracy To be completed by database manager.
Completeness of dataset Complete. Records all current land parcels as defined on approved Survey Office plans, Maori Land Court plans, and Deposited Plans, and diagrams on transfer, but not flats or units shown on Flat or Unit Plans. Specifications require that all parcels are recorded within 10 days of notification.
Positional accuracy Pegged Survey Points: urban 1.5m, rural 10m, remote 50m. Points not pegged: urban 2m, rural 20m, remote 100m.
Database steward Land Information New Zealand
Database custodian Land Information New Zealand
Database custodian contact person Clive Solomon
Database custodian Contact
Address
Phone
Fax
Email		 P.O. Box 55014
Wellington
+64 4 496 9450
+64 4 496 9421
csolomon@linz.govt.nz
References Website:
http://www.linz.govt.nz/services/landtitles/opsgrp/dcdb/index.html
Date metadata record prepared. October 1999
Author of metadata record. Victoria Froude

 

Management Evaluation

  
Original purpose. To replace the public counter record sheet of property boundaries.
Relationships with classification systems. N/A;
Relationships with other databases The Digital Cadastral Database is used with many other databases (e.g. Land Cover Database) for a variety of purposes.
Known relationships with proposed EPIP indicators. N/A
Who uses this database?

Key database clients are: central government, local government and public sector agencies using road centrelines or property based GIS applications for strategic purposes or as part of their business support (e.g. banks).

There are a number of licensed distributors.
Public awareness of the database There is a moderate level of awareness, especially among landowners. Surveyors are very familiar with the database.
Database strengths.
  • Comprehensive
  • Thorough quality control
Database limitations. The initial digitising perpetuated all the existing errors in the manual maps.

 

What are the Current and Emerging Uses of the Database for:

  
Assisting with determining historic state/baseline. The database contains some historical data.
Assisting with determining current state/baseline. This database describes the current location, shape and area for land parcels and the legal definition of roads, road centrelines, railways and hydrographic features.
Assisting with modeling possible future outcomes. N/A
Risk assessment. N/A
Monitoring site selection and sample design. Cadastral boundaries could assist with the selection of monitoring sites.
Aggregating and reporting data locally, regionally or nationally. The Digital Cadastral Database could be used as a framework for reporting purposes.