In an effort to increase population in developed Calgary, the City is changing its rules for adding new development. Urban form categories create designations to allow for multi-unit, mixed-use buildings (commercial & residential) in the creation of local area plans. Neighbourhood urban form categories include: commercial required (where commercial uses should be offered on the ground floor); active (a mix of commercial and residential with high pedestrian activity); general (supporting a broad range of housing types and some small-to-moderate commercial uses); and local (a broad range of housing types and home-based businesses with strong private-public separation).