Charles Rennie Mackintosh house extension project opens

The two-storey extension includes new gallery space and a shop

An extension on a house that was the architect Charles Rennie Mackintosh's final commission has been completed.

The terraced property in Northampton, known as 78 Derngate, is the only home in England created by Mackintosh, who was seen in Europe as a leader in avant-garde art and design.

New gallery space has been added to an adjoining building.

Liz Jansson, house manager, said it would help keep the tourist attraction open for "generations to come".

Alongside the extension, the property's gardens are now three times as big

Designed and remodelled by the Glasgow architect in 1916, 78 Derngate is the only place where his style can be seen in its original setting.

He was invited to remodel the Georgian house by the renowned model-maker Wenman Joseph Bassett-Lowke in time for his wedding in 1917.

Charles Rennie Mackintosh was lauded in Europe but died in poverty in 1928

The house was bought by Northampton High School for Girls in 1964 and used as a school.

Local people united with members of the Charles Rennie Mackintosh Society to campaign for its preservation and it opened to the public in 2004.

The house in Northampton is the only one in England designed by Charles Rennie Mackintosh

The tourist attraction has capacity for just 30 people but the trust that runs it also owns two neighbouring properties.

The £950,000 two-storey glass extension means there is now twice as much gallery space as before and a new shop and education centre.

The gardens have also been extended and it is hoped the work will help increase visitor numbers.

The renovation project has cost £950,000

Ms Jansson said the space was "fantastic" and worked "seamlessly" with the original buildings. "It is like it has always been here," she said.

The project was paid for from the attraction's own fundraising and £400,000 from the £25m given to West Northamptonshire Council from the government's Town's Fund.

The new gallery has been in use for several weeks and will be officially opened with a ribbon cutting ceremony on Friday.