Introduction

bagkit reads the national BAG extract that Kadaster publishes every month, keeps the voorkomens that are current on a date you choose, and writes them in a shape you can use straight away. It is a command-line tool and a Rust library.

bagkit convert lvbag-extract-nl.zip --format parquet --output bag

That converts the whole country: 10.8 million nummeraanduidingen, 10.8 million verblijfsobjecten, ligplaatsen and standplaatsen, and 12.8 million panden with their geometrie.

Quickstart

Download the extract, convert it and look up your first address.

Converting extracts

Choose a format, a shape and the object types you need.

Address lists

One row per adres with its names and coordinates.

Rust library

Stream current BAG voorkomens into your own code, in parallel.

Why bagkit

The BAG extract is about 105 GiB of XML in nested ZIP archives. Each object appears once for every voorkomen in its history, inactief and ingetrokken voorkomens sit beside current ones, and the relations between nummeraanduidingen, adresseerbare objecten and panden point in several directions. bagkit does the work of selecting what is current on a date, joining it together and checking it, and does it fast enough that you can rebuild from scratch whenever a new extract appears.

Note

bagkit is not affiliated with Kadaster or PDOK. The BAG data is published by Kadaster under CC0; bagkit is MIT licensed.