Sorry all, major major geek alert here!!
Was looking at the old ordnance maps and spotted that my house (or the section where my row of terraces would be) is an unshaded block. Other parts of the street are shaded. On nearby streets part of the street is shaded. I'm wondering whether the shaded areas notates built houses and unshaded where houses were not yet built.
It's funny because most of the houses on my street were built around 1900 and the map supports this. But its unshaded where my hiuse is even until 1930s. Abd there are small details that are different on my Row than the others now that i think of it. That's a big difference! The insurance might care about that!
So, just wondering whether anyone knows....
In case you all want to geek out(!) maps.nls.uk/geo/find/#zoom=11.073190437723584&lat=51.51803&lon=-0.11077&layers=102&b=1&z=0&point=51.47990,-0.17685