British Museum officials are to submit revised plans to Camden Council for a £135m extension that was initially turned down by the council in June.

The rejigged plans, drawn up by architects Rogers Stirk Harbour + Partners, include sinking part of the extension below ground in an attempt to solve criticism that the extension will block views of the Grade I-listed Reading Room.

The new plans will go on public display later this month. No date has yet been set for the plans to be handed in to the council.

RSHP's original plans included a 1,000 sq m (10,760sq ft) building at the rear of the museum, replacing the former offices of the British Library on Montague Place, as well as a conservation centre to train museum conservators.

The plans, however, angered a local conservation group, Bloomsbury Conservation Area Advisory Committee (BCAAC), which claimed the development would block daylight from the existing buildings and would diminish the museum's existing architectural delights