Glad to see you adding some TOIDs today, even if there is no longer an OS online linked data service that they can be made to click straight through to.
It might be worth adding a note to Property talk:P3120 just to say that they can still be found, and are still useful to have and to add; also might be worth adding a reference (eg stated in (P248) = OS MasterMap (Q7073065) or wherever you found them), to help others know where to look.
But bravo for the additions and keeping them attended to !