show ad High speed line work at London's Euston station will last SEVEN years longer than planned - and cost £250million more * Work for HS2 railway line at Euston station to last up to seven years longer * It will also cost £250m more said firm responsible for high-speed network * HS2 Ltd unveiled redesign to boost efficiency & reduce resident disruption * But Camden Council warned it would 'cause decades of blight' to the -- comments Building work for the HS2 railway line at London's Euston station will last up to seven years longer than planned – and cost £250million more. The firm responsible for the planned high-speed network unveiled a redesign which it said will boost efficiency and reduce disruption for residents. It also said the cost of the Euston project will rise from £2billion to £2.25billion, although this does not affect HS2's overall £42billion budget. Delayed: Building work for the HS2 railway line at London's Euston station (pictured) will last up to seven years longer than planned – and cost £250million more Delayed: Building work for the HS2 railway line at London's Euston station (pictured) will last up to seven years longer than planned – and cost £250million more Delayed: Building work for the HS2 railway line at London's Euston station (pictured) will last up to seven years longer than planned – and cost £250million more -- to link London and the North with 225mph trains. HS2 Ltd wants to build six platforms and a concourse to the west of the existing station by 2026 to support the first phase of HS2 between London and the Midlands. In a change from proposals initially submitted two years ago, HS2 Ltd is planning to delay construction of five further high speed platforms within the existing station. They would be ready for phase two of HS2 which will run from the capital to Leeds and Manchester in 2033. -- 159 shares Rupert Walker, Euston development director of HS2 Ltd, said: 'It is more construction over a longer period but it's less intense. -- coming in and out of Euston every day.' It is part of the project to link London and the North with 225mph trains. A potential HS2 train design is pictured It is part of the project to link London and the North with 225mph trains. A potential HS2 train design is pictured It is part of the project to link London and the North with 225mph trains. A potential HS2 train design is pictured The plans will be submitted to Parliament next week. -- between all important parties. 'HS2 will cause decades of blight in the Euston area - to property prices, to our small business' trade and to our residents' lives, which is why we remain ardently opposed to the scheme,' she said. -- between key partners and viewing the area's needs as a whole. 'Euston is a different case, but we need bodies like HS2 Ltd, Network Rail and Transport for London to work together with us, residents and businesses to ensure the new Euston works for everyone.' HS2 Ltd said its proposal was a 'flexible scheme' and insisted Network Rail, which owns the station, will announce its own plans in due course. -- Share or comment on this article: HS2 railway line at Euston station will last SEVEN years longer than planned *