Hi Ollie, welcome to OSM. The footprint you mapped here does represent a building visible in the imagery, but it is oversized and has not been appropriately squared (q). You should not include a buildings shdow in a footprint when aquiring its shape and size. See how I mapped it in Changeset: 168375583. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
            ---
            #REVIEWED_BAD #OSMCHA
            Published using OSMCha: https://osmcha.org/changesets/168375498
            