THIS is the £130million block to be built in the centre of Glasgow that will be one of the UK's most environmentally friendly office buildings.

National developer Castlemore Securities has been given permission for the 12-storey building in St Vincent Street.

The company says the 250,000sq ft development will set new standards for green' buildings.

Spokesman Nigel Crump said: "Green credentials are fundamental in any building, particularly a new one."

The office will have a special air conditioning system that emits 30% less carbon, uses 30% less energy and will be 30% cheaper to run.

But it will produce up to 50% more fresh air than traditional systems.

Mr Crump added: "We will probably also do things such as harvesting rain water for toilet flushing to ensure the building is energy efficient.

"We believe there is growing awareness among occupiers that they have to look at green credentials when they think of moving to a new place.

"This is a very prominent site for Glasgow and the building quality and accommodation will be world class. The building will also be a leader for its green credentials.

"It is designed to be attractive to local, national and global occupiers because we feel Glasgow is well set to advance in this market."

The company says the open plan design will allow the building to be used as a base for one or a number of firms.

The upper floors will include roof terraces and gardens giving panoramic views.

There will be a ground floor coffee shop and basement parking for 200 cars.

Work is expected to start next summer and be complete towards the end of 2011.

Castlemore is a private company with a £1billion programme of UK schemes under construction or with planning permission.

Anderston/City councillor Philip Braat said: "This development is a massive vote of confidence by the private sector in Glasgow and its growing economy."