There is no automatic disqualification in statute that I can find As section 3 of the House of Lords Act 1999 removes the disqualification on membership of the HOC for hereditary peers that have been kicked out it can be assumed that a such a disqualification exists for all other peers and b that that disqualification is unwritten Similarly because special provision is made by section 8 of the House of Lords Precedence Act 1539 for the Great Officers of State who are not Lords to sit on the Judges Woolsack ie in the middle of the benches in the House of Lords it can be assumed that members of the HOC are otherwise disqualified from sitting in the lords It s something of a grey area and just another part of our constitution that would not do badly from codification