| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Senedd - Timeline of cost increases and time delays |  |  |  |  |
| 3 | Construction period | Date | Estimated and final cost | Estimated completion date | Notes |
| 4 | Phase 1 including selection processes | July 1997 | c£12M | April 2001 | The first estimate by the Welsh Office in the A Voice for Wales white paper. |
| 5 | Phase 1 including selection processes | 16 October 1998 | £11.6M (total) £8.4M (construction) | - | RRP estimated cost at time of the design selection process. |
| 6 | Phase 1 including selection processes | January 2000 | £22.8M | - | Revised estimate by RRP after changes to the design of the building by the National Assembly. |
| 7 | Phase 1 including selection processes | March 2000 | £26.7M | January 2003 | Estimate produced by Turner and Townsend for the National Assembly. |
| 8 | Phase 1 including selection processes | May 2001 | £37M – £47M (total) £28M (construction) | - | Estimate from a 3-day workshop by the National Assembly and all contractors involved in the project. |
| 9 | Phase 2 | September 2001 | - | July 2004 | - |
| 10 | Phase 2 | January 2003 | £29.3M (construction) | - | Estimate from Taylor Woodrow, Schal and Northcroft, which was based on an incomplete design. |
| 11 | Phase 2 | 30 May 2003 | £41M (construction) | August 2005 | Tender submission by the Taylor Woodrow Strategic Alliance Partnership after value engineering. |
| 12 | Phase 2 | July 2003 | £66.1M (total) £48.2M (construction) | - | The final construction lump sum offer made by the Taylor Woodrow Strategic Alliance Partnership. |
| 13 | Phase 2 | 7 February 2006 | £69.6M (final total cost) £49.7M (final construction cost) | Completion date | The total project cost, including £7.5M from phase 1. |
| 14 | 1 March 2006 (Royal opening ceremony) | 1 March 2006 (Royal opening ceremony) | The project was 580% over budget compared with the original budget forecast in April 1997 (phase 1) and was four years and 10 months late. | The project was 580% over budget compared with the original budget forecast in April 1997 (phase 1) and was four years and 10 months late. | The project was 580% over budget compared with the original budget forecast in April 1997 (phase 1) and was four years and 10 months late. |
| 15 | Sources: National Audit Office Wales, Accommodation Arrangements for the National Assembly for Wales and Wales Audit Office, The Senedd | Sources: National Audit Office Wales, Accommodation Arrangements for the National Assembly for Wales and Wales Audit Office, The Senedd | Sources: National Audit Office Wales, Accommodation Arrangements for the National Assembly for Wales and Wales Audit Office, The Senedd | Sources: National Audit Office Wales, Accommodation Arrangements for the National Assembly for Wales and Wales Audit Office, The Senedd | Sources: National Audit Office Wales, Accommodation Arrangements for the National Assembly for Wales and Wales Audit Office, The Senedd |

Question: How much did the cost of the Senedd increase by from 1997 to 2006?
Answer: The cost of the Senedd increased from £12M in 1997 to £69.6M in 2006, an increase of 580%.