It is my belief that we have our magical needs met already in London by Diagon and Monument alleys. If there is expansion to be done it needs to be outside the city closer to outlying communities such as Godric's Hollow and Ottery St. Catchpole. Non-magical needs can be met by Muggle stores and part of what we fought for was to garner acceptance of the Muggleborn and Half-Blood cultures which includes the embracing of their way of life. We should also be encouraging those with magical abilities that have a passion for items considered traditionally Muggle to integrate into Muggle establishments. In that way we are using Muggle resources to house businesses while brining monies into our own communities that we would not have otherwise had as it increases the viable customer base.