Belgium: parcels

[barthanssens]

Hi,

I have a few questions on providing (Belgian) parcel data:

• Is this a supported feature or still in beta ? The documentation (https://github.com/openaddresses/openaddresses/blob/master/CONTRIBUTING.md) still mentions Valid layers are addressess. In the near future parcels and buildings will be supported But there are already a few parcel sources available, so I assume we can just mimic what e.g. Canada is doing ?(https://github.com/openaddresses/openaddresses/blob/master/sources/ca/bc/port_moody.json)

• I assume the structure/source does not have to follow the structure of the addresses (ie.: the Belgian addresses are provided by the 3 Regions, but the parcel are published by the federal level as 1 single nation-wide source)

• Is there a size limit per source ? The compressed download is a 2.5 GB zip with Shapefiles (8 GB uncompressed)

[andrewharvey]

Is this a supported feature or still in beta ?

@ingalls has built support for parcels so you can add them now. Documentation still needs to be updated, feel free to put forward a PR for the docs if you'd like to help.

(ie.: the Belgian addresses are provided by the 3 Regions, but the parcel are published by the federal level as 1 single nation-wide source)

You can have a separate countrywide.json file just containing the parcels, it doesn't need to be in the same json file for each region which contains the addresses.

Is there a size limit per source ? The compressed download is a 2.5 GB zip with Shapefiles (8 GB uncompressed)

You can try. I uploaded a 1GB zip for au/qld parcels.

[andrewharvey]

drafting updated docs at #5542

[barthanssens]

Thanks, I'll give it a try early next week.

[barthanssens]

Looks like the shapefile containing the Belgian parcels also contains other layers (e.g. administrative borders), so I'll have to ask them to make a separate set containing just the parcel data...

https://eservices.minfin.fgov.be/myminfin-web/pages/cadastral-plans

[iandees]

The system can download the whole thing and pick just the parcels. It'll take less time if they are broken up, but it should be possible.

[barthanssens]

Ah that would be great... but if I read the documentation correctly, the layer property is currenly only supported for GDB, not for shapefile ?

[iandees]

Since each shapefile is a "layer", you can accomplish the same thing by specifying file when processing Shapefiles.

[barthanssens]

Makes sense, thanks.

And contrary to what I first thought, the zipped file contains a separate shapes for each region, so it could somewhat follow the same structure as the addresses...