Capital Tower, originally known as Pearl Assurance House, is a high-rise building in Cardiff, Wales. Standing at to roof height, Capital Tower is slightly taller than Stadium House, which stands at to roof height (though inclusion of the antenna gives Stadium House a pinnacle height of ).
The foundations were built on the ruins of a 12th-century friary, much of which had still stood until 1955. These were completely cleared for the tower to be constructed, although it is probable that under modern planning laws this would not have been allowed.
Construction was started in 1967 and completed on schedule at a cost of ã1.5 million, with the building being officially opened on 7 April 1970 by Lord Lieutenant of Glamorgan, Sir Cennydd Traherne. It was originally known as Pearl Assurance House, after the Pearl Assurance company.
For a long period it was the tallest building in Wales, until it was overtaken by Swansea's The Tower, Meridian Quay completed in 2009.
The building provides of floor space, Originally, a jobcentre, bookshop and galleries were built on the lower floors, but in 1998 they were replaced by a new set of developments including cafe-bars, and the multi-storey car parks were re-clad. At this time the building received its current name, Capital Tower.
On 25 November 2002, the tower was sold for ã17.4 million by Aberdeen Property Investors to the Raven Group. In August 2012, DTZ secured the ã12.35 million sale of Capital Tower and Friary House to the Topland Group.
In 2018 the building was for sale at an asking price of ã23.4 million.
The building currently houses offices for The Law Society, ranstad, AA, DevOpsGroup, Allianz, Yard, Admiral and Dolmans.