Hello and Welcome to OpenStreetMap.

Does John Donne Way go through the building as a passage? If so then please consider adding tunnel=yes and possibly service=alley or passage.

Regards Bernard.

Hello, Welcome to OpenStreetMap.

At the moment you point is in the middle of London Road so not much to go on to fix it. Could you position the point on the actual building please? Any other details would be helpful as well.

Regards Bernard.

Hi, your new Way: Western Avenue (697828359) is a duplication of part of the existing Way: Western Avenue (79095790) and should be removed. Because you've added a destination tag to your new way and there are various relations on the existing way I am reluctant to make further amendments. Could you please have a look at this?

Regards Bernard.

Hi, that's a bit tricky with the iD editor so I've done it for you with JOSM.

Regards Bernard

Hi, your new path Way: 694291899 crosses over the existing path Way: 418364092 six times with no junction node at the crossing point. OSM would expect there to either be a junction, bridge or tunnel at the crossing point. Obviously in this case the crossing paths should join as yo have joined them four other points. There should also be no duplication of sections of way which you have done between nodes 4187958304 and 6518488272.

Regards Bernard.

No response so I've changed tag to a description=steep incline.

Hi, your new path in parts duplicates an existing path, in other parts it criss crosses over the existing path without joining it. Could you please correct these anomalies.

Regards Bernard.

Oh dear lots of fiction names!

Hi, best not to map stuff you're not sure of.

Hi, what makes you think this is a park when it looks like most of the other building. around here?
Regards Bernard.

Hi, I now see that you continue to add fiction so I've reverted this changeset.

If you need help contributing to OSM please just ask.

Regards Bernard.

Hi, just a name on a linear feature, (possibly an unenclosed area has no meaning to OSM. These ought be corrected or removed.

Regards Bernard.

Hello, Way: 696916858 is it a bridge or a culvert (tunnel)? You've tagged it as both. Both bridge or culvert on a footpath can best be a linear feature.

Regards Bernard.

Hi, Welcome to OpenStreetMap.
I see that your contribution to OSM has problems. It is nowhere near the address on your website. You have created it as a relation not related to anything. You've placed it in the node describing the place of Northolt. Thus I have deleted the relation.
I've placed a POI on Gurney Road, it it in the correct place? Please amend reposition if not.

Regards Bernard.

Hi, Yes, tunnel=culvert and layer=-1 for any waterway that passes through a passage under any other feature, (road, land or building). The tag location=underground is actually not needed (can be removed) as this is inferred by the other tags.

Regards Bernard.

Crossing points, barrier added, joined path to road.

Path now joined to road.

No response so crossing added.

Thanks for your response, I've squared up several odd shaped building outlines, disconnected tracks from buildings, removed duplicated sections of track.
Regards Bernard.

No response so amendments made.