A former newspaper HQ has been put up for sale as part of plans for a 14-storey development to be named aftert the titles once based there.

Until moving to Fort Dunlop in Castle Bromwich.2008, the Birmingham Post and Mail and Sunday Mercury were based at a building in the Colmore business district of the city.

The site is now in the first phase of its redevelopment, with work to create an underground car park with office space and retail units set to be completed later this year.

The Post reports that a planning application for the second phase of the redevelopment, to be called Post & Mail, has now been submitted to Birmingham City Council, which would see a tower block with seven floors of offices and a further seven levels of flats.

The first phase of development has seen a car park built on the former newspaper site.

The developers Chatham Billingham are now looking for a buyer for the site through consultants CBRE, to either buy it outright or to work with them on finishing the project.

In a marketing brochure for the site, the developers said: “Post & Mail provides a rare opportunity to acquire a significant new-build mixed-use building in the UK’s second city, with planning consent to add a further 430,560 sq ft of office and residential space.

“A purchaser is sought to complete the project. The purchaser can acquire the existing interests and complete the development or alternatively participate within a joint venture through to a purchase of the asset upon practical completion.

“Chatham Billingham has appointed CBRE to identify a party to purchase phase one then work with them to complete the project and open Post & Mail as envisaged.”

The original newspaper building was completed in 1964 and previously had a large tower, which was demolished in 2005.

The latest planning application for the site proposes 245,630 sq ft of office accommodation and 115 flats, including ten penthouse apartments.

In a design statement, Associated Architects said: “The proposed mix of uses within the Post & Mail building has been carefully considered to ensure the development will complement and enhance the existing mix of uses within the Colmore business district which is predominantly focused on high-density office accommodation.”