A £14 million renovation of a city centre office block has been given the green light by city planners.

Bruntwood plans to upgrade the vacant Two Cornwall Street to create 110,000 sq ft of grade A office space.

The project is due for completion next year when high demand from occupiers looking to locate in Birmingham is expected to coincide with a lack of supply.

Situated on the corner of Cornwall Street and Livery Street, work on the nine-storey building is due to start in August and will increase its internal area by around 21,000 sq ft.

Designed by Glenn Howells Architects, the building will have a double-height reception area, a private car park, cycling facilities with showers and drying room and a 3,500 sq ft rooftop terrace for the use of tenants.

Also known as Peat House, this latest plan is a scaled-down version of a previous project which would have seen the building demolished and replaced with a 13-storey complex.

Bruntwood acquired the building in November from West Register, the property arm of the Royal Bank of Scotland.

The family-owned company also owns and manages Centre City in Hill Street, Mclaren in Queensway and the Grade II-listed Cornwall Buildings in Newhall Street.

Head of the Birmingham office Rob Valentine said: "We now have the green light to transform Two Cornwall Street into desirable grade A office space which will be delivered at a crucial time for the city's office market.

"There is expected to be a surge of demand for high-quality space in Birmingham in 2016 with the city increasingly being seen as a place where entrepreneurial businesses thrive.

"This has especially been the case since HSBC announced its historic decision to move the headquarters for its UK retail and commercial banking business, and 1,000 jobs, to the city."