BDP has won an architectural and design contract for parliament’s Northern Estate.
The architect will head up the design, master and town planning, decant and relocation planning, design management and conservation design for the Northern Estate for the House of Commons.
The contract is valued at between £15m and £25m for the estate work which includes the Norman Shaw buildings, 1 Derby Gate and 1 Parliament Street.
A House of Commons spokesman said BDP submitted the best value for money bid with the highest overall score combining quality and price.
Work is expected to be completed by the early 2020s.
The overall cost of the redevelopment of the Northern Estate is estimated around £500m. The Palace of Westminster will also be redeveloped and is estimated to cost around £4bn.
A decision on whether MPs will fully move out of the Houses of Parliament is still yet to be made but was advised in a Joint Committee report in September.
The Palace of Westminster is facing “impending crisis” which can no longer be ignored, according to the report.
Problems within the estate include the pipe and electrical cable networks running throughout the Palace, which present a fire risk and could lead to failures in the palace’s essential systems, making Parliament uninhabitable.
The joint committee report also stated the skills shortage the industry faces could “hamper” the programme.
However, Committee member Borness Stowell said the skills shortage presented a “huge opportunity” to “resuscitate the industry”.
She said: “We have to use this as an opportunity to make sure we have the skills for buildings such as this to be maintained in the decades ahead.”