[Talk-GB] High quality NLS imagery of buildings and HOUSENUMBERS (!) available in London (and Scotland). Create a tasking manger to add this?

[Stephen Colebourne]

Having surveyed thousands of addresses in SW London, I've done a quick
compare and it looks pretty good to me. Sure there are the odd case
here and there where buildings have changed, but for the many parts of
London with Victorian to 1930s housing stock, this will be mostly
accurate. Just comparing the general order from low to high odds/evens
is useful. Plus for hard to access private streets its great. As a
warning though, it does not align perfectly with the Bing offset I'm
using.

Is there anyone with "authority" that can state this is OK to use, and
what source tag to use?

Stephen


On Fri, 30 Oct 2020 at 18:48, Mark Goodge <mark at good-stuff.co.uk> wrote:
>
>
>
> On 30/10/2020 18:37, Mateusz Konieczny via Talk-GB wrote:
> >
> >
> >
> > Oct 30, 2020, 16:28 by talk-gb at openstreetmap.org:
> >
> >     It has come to my attention that the "Town Plan" map from 1944-1967
> >     in NLS is available freely.
> >
> > What are its licensing terms?
> >
> > "available freely" does not mean "compatible with OSM license"
>
> It's out of copyright, so there aren't any licensing issues in deriving
> data from it.
>
> I would, though, be a little reluctant to use it as a basis for
> wholesale numbering without any supporting local knowledge or survey.
> House numbers can, and sometimes do, change, particularly when streets
> are renamed or rebuilt. So you can't be 100% certain that a house number
> in the 1950s is the same number it is now, even if the building is still
> the same.
>
> Mark
>
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