Stanhope, the development and asset manager, and Bennetts Associates, a leading UK architectural practice, have secured a resolution to grant planning permission from Cambridge City Council for the renewal of Kett House in Cambridge. The decision, granted on the 5th of February, will see the development of an eight-storey, c.160,000 sq. ft, best-in-class office building, designed to contribute more positively to the surrounding area and support the continued success of the CB1 business district.
The proposals, originally submitted in October 2025, were agreed by Cambridge City Council and include contemporary and adaptable office accommodation defined by generous ceiling heights, efficient structural grids and flexible floorplates, as well as end of trip facilities. They also include three landscaped gardens and a colonnaded public realm to extend the character of the nearby Botanic Garden into the site. As well as the reinstatement of the Kett Oak sculpture, a popular local landmark that honours the family of Robert Kett, who led a rebellion in 1549, and depicts the oak tree where the plotters met.
David Dawson, Associate at Bennetts Associates, said:
“Using the very simplest of forms, we’ve created a building that is not only sympathetic to its surroundings but will also provide a benchmark for sustainable office buildings outside London. From the hybrid timber structure, low-carbon ground-loaded stone façade to integrated water, energy and biodiversity plans we have aimed to deliver an economic and resourceful building designed to last, while creating a high quality, flexible and contextual building that supports wellbeing and strengthens the public realm.”
Laura Collins, Investment Director at Stanhope, added:
“Kett House is the latest example of how we are bringing forward best-in-class, innovative office developments whilst ensuring they remain part of the local community fabric. Bennetts Associates’ vision for the property is one step closer to becoming a reality and we look forward to delivering on the next stage of the development programme.”
Sustainability considerations have been embedded from the outset, shaping the building’s form, structure and material strategy. Plans include a hybrid timber and steel frame that aims to deliver low embodied carbon, and stone brick façades within the design will be sourced from the UK using offcut stone. Water will be reduced through greywater recycling, blue roofs and rain gardens. Through layered habitats and green roofs, the scheme will aim to achieve over 20 per cent Biodiversity Net Gain, while circular economy principles such as design for disassembly support long-term resource efficiency. Stanhope is targeting a BREEAM Excellent certification, NABERS 5-star rating and WiredScore Platinum.
Bidwells provided planning advice and CBRE Investment Management were the fund managers.