Hosted by Design By Many, the Passive House for New Orleans competition challenges designers to design a single-family dwelling that is sustainable in the broadest sense of the term:affordable to build and purchase, long-lasting, with minimal impact on the local environment, and affordable to heat and cool throughout the life of the building. Competition requirements included:Homes should meet post-Katrina building codes, guidelines and best practicesHomes should be shotgun typology and strive to create cohesive neighbourhoodsProgram - 1000 sq. ft. treated floor area to include (2) bedrooms, (1) full bath, (1) half bath or 1250 sq. ft. treated floor area to include (3) bedrooms, (2) full bathsFirst floor elevation - +5' above gradeDesign should strive to achieve Passive House Standard:Airtight building shell < 0.6 ACH @ 50 pascal pressure (simple, well-detailed constructionAnnual heating and cooling requirement < 15 kWh/m2/yearPrimary Energy < 120 kWh/m2/yearBefore beginning to design, we researched traditional New Orleans residential architecture: shotgun houses. This style of residence surged in popularity in the Southern United States from the end of the American Civil War through to the 1920s. Typically, the rooms of the house would be aligned in a row, with no hallways - one would walk from one end of the house to the other by going through each of the rooms.Shotgun houses are typically made from wood frame construction with wood siding. High ceilings and a lack of hallways allow for efficient cross-ventilation and cooling in each room. Variations of the conventional shotgun style have emerged to meet additional needs. A camelback shotgun house has a partial second storey at the back; a north shore shotgun house has a porch that wraps around three sides, and a double-barrel shotgun is two shotgun houses side by side, sharing a central wall.Our final design emerged from the results of a good ole-fashion design-off! We each worked on separate designs for a few days and then presented them. As expected, certain features were admired in each design and they were pieced together to form our final product.