I want to remove the face of a chimney breast (about 800mm wide) to about 1800mm, and use the remaining side faces/reveals to support the steel beams to support the remaining wall above the opening.
The chimney pots will be cowelled to allow ventilation to flow.
Do I need planning permission or to contact building control prior to doing this and am i likely to then have to do or pay for any calculations for sizes of steels? Was hoping to use a corrugated lintel cut to size to allow for 150mm embedding on both sides.
Any help/advice welcome.