RDT Architects were instructed to prepare a design proposal for the demolition of Alexandra, Littleport, Collingham and Victoria House, Marlborough Park, Harpenden, AL5 1NL, to be replaced with a new build 3 storey mixed-use development. The proposal consists of 8 (C3 use class) residential apartments and 800m2 of commercial office (B1 use class) accommodation. The applicant sought outline planning consent covering access, layout, and scale, leaving landscape and appearance as reserved matters for consideration at a future date.