HollieBB Double Duty Build Challenge Build Shell - Objective: Randomly select two themes and use this build shell to form the duplex! Remember: Do not remove any exterior walls! You may add basements, fencing, roofing, and convert any walls into half walls or fencing. Feel free to place this structure anywhere on your lot. Landscaping encouraged, too! @holliebbtv on twitter for full rules. #doubledutybuild #holliebb