The panel, to run until 2014, will replace the four panels established in 2006 for four-year terms.
Those panels were for masterplanning, urban design, architecture and landscape architecture.
The HCA is now seeking to establish a framework of national design consultants who will work with it and with other public sector bodies, such as local authorities, regional development agencies, and social landlords.
It said call-offs from the framework will be conducted through a competitive process on a case-by-case basis.
The deadline for applications is 15 April and the agency added that up to 30 firms may be appointed to the framework in total.
- Contact the HCA by email at email@example.com or call 01908 353761.