Neighbours RSJ in my property!

Its a party wall, and as such the neighbour may well have rights to have the beam bear onto the full width of it.

You should be following the Party Wall Act too, and should serve a notice on the neighbour if you plan on sitting your beam on the wall, or on their beam, and if you want to cut it. You can't just cut it if doing so, will cause a problem for the neighbours.

You are responsible for the costs of all the work, costs of any work required on the neighbours side, and if you follow the PWA, you pay all fees too.

The alternative scenario is that the beam may be causing a trespass. But as its been so long, and you may not know what agreements were in place when the work was done, and if the protrusion was considered necessary/done for a reason and with the then owners agreement, then you would have a job proving otherwise

dg

Had the structural engineer in yesterday and he told me that it would be OK to sit my steel on the neighbours.

Martin

Won't you need some method of constraining the beam sideways, so it can't slide off ? Just a thought that you've probably already thought of ! Simon.

Well duh. You didn't say it wasn't going into the wall also. Simon.

That sounds quite painful for the neighbours.

Won't they mind?