My apologies, I have just realised this discussion only relates to english tags.

Is it worth discussing in tandem what happens in other parts of GB (separate thread)? for example, in Scotland the "Garden & Designed Landscape" designation don't have individual grades (category) but are generally designated ("Status: Designated") and given a unique reference e.g. GDL00351

On 23/07/2020 09:00, Mark Goodge wrote:


On 22/07/2020 23:02, Dave Love wrote:
On Wed, 2020-07-15 at 10:18 +0100, Tony OSM wrote:

For a building or similar I presently use

HE_ref=1072653
heritage=2
heritage:operator= Historic England
historic= heritage
listed_status=Grade II
name= War Memorial Gateway to Astley Park
barrier=gate
start_date= mid C19
website=
https://historicengland.org.uk/listing/the-list/list-entry/1072653

I forgot to comment before:  From a maintenance point of view, is it a
good idea to add redundant data (that I assume are implied by HE_ref)?

The HE_Ref is probably the important one, as that links back to the original data source. But the rest of it seems a reasonable way of tagging listed buildings.

Also:

On Thu, 2020-07-16 at 14:10 +0100, Tony OSM wrote:
Yes, maintenance when things change is an issue.

I've looked at taginfo listed_status and found several variations
for
Scheduled Monument, Grade(value)

I plan to do several things if there are no objections

1. update wiki listed_status to show the capitalised values
Scheduled
Monument, Protected Wreck Site,
Park and Garden, Battlefield, World Heritage Site, Certificate of
Immunity, Building Preservation Notice

What happens to, say, a park/garden with a grade, then?

Parks and Gardens are, typically, not listed buildings and don't have grades in the same way.

Straying a bit from the topic a bit, perhaps it's worth adding
something about adding listed things that may not be obvious to
everyone.  If you find in the HE listings a building (say) you don't
already know and want to tag it, presumably it's a problem that you
can't just match the position on their OS maps to OSM.  I assume you
need to take the listed grid reference and just use that (which you
probably can't with curtilages etc. or a monument like an ancient
ditch, though that's likely on NLS 1:10000).  The wiki could use info
about converting grid references too, unless I missed it.

The re-usable data for listed buildings only contains a point, so that's the only useful geographic data for them even if the map on the HE website shows the curtilage. Some of the data for monuments includes a polygon, but not all, and you can't tell from the website which does and which doesn't - you have to download and convert the shapefiles.

Mark

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