| The Lord Aberdare (January 23 2005) | Conservative | Elected Hereditary Peer | | | The Lord Ackner (March 21 2006) | Cross Bench | Lord of Appeal | |
| The Lord Alexander of Weedon (November 6, 2005) | Conservative | |
| The Lord Barber (December 16, 2005) | Conservative | |
| The Lord Belstead (December 3, 2005) | Conservative | Hereditary Peer Given Life Peerage | Sat as Baron Ganzoni |
| The Baroness Blatch (May 31, 2005) | Conservative | |
| The Lord Brightman (February 6, 2006) | Cross Bench | Lord of Appeal | |
| The Lord Chan (January 21, 2006) | Cross Bench | | |
| The Lord Bruce of Donington (April 18 2005) | Labour | |
| The Lord Burnham (January 1, 2005) | Conservative | Elected Hereditary Peer | |
| The Lord Callaghan of Cardiff (March 26, 2005) | Labour | |
| The Lord Campbell of Croy (April 26, 2005) | Conservative | |
| The Lord Carlisle of Bucklow (July 14, 2005) | Conservative | |
| The Lord Donaldson of Lymington (August 31, 2005) | Cross Bench | |
| The Baroness Fisher of Rednal (December 18, 2005) | Non-Affiliated | | |
| The Lord Fitt (August 26, 2005) | Independent Socialist | |
| The Lord Gray of Contin (March 14, 2006) | Conservative | | |
| The Lord King of Wartnaby (July 12 2005) | Conservative | | |
| The Lord Lane (August 22, 2005) | Cross Bench | |
| The Baroness Lloyd of Highbury (June 28, 2006) | Cross Bench | | |
| The Lord Merlyn-Rees (January 5, 2006) | Labour | | |
| The Lord Mishcon (January 27, 2006) | Labour | | |
| The Lord Orme (April 28, 2005) | Labour | |
| The Lord Rawlinson of Ewell (June 28, 2006) | Conservative | | |
| The Lord Roll of Ipsden (March 30 2005) | Cross Bench | |
| The Lord Sheppard of Liverpool (March 5, 2005) | Labour | | |
| The Lord Simon of Glaisdale (May 7, 2006) | Cross Bench | Lord of Appeal | |
| The Baroness Strange (March 10, 2005) | Cross Bench | Elected Hereditary Peer |
| The Lord Stratford (January 8, 2006) | Labour | Life Peer | |
| The Lord Trotman (April 25, 2005) | Cross Bench | | |
| The Lord Whaddon (August 16, 2005) | Labour | | |