The transmission of property through heritage can contribute to the urban shape and/or to social structure. Some individual home areas can get densified over time as the need to divide the original lot arises through heritage by a group of brothers, for instance; this is quite more complex with current planning systems in which the subdivision of existing lots can be limited. When inheritance implies an apartment, its subdivision can depend on many elements and be more complex, as creating a new kitchen or bathroom requires a connection to the building’s services that is more difficult to solve in an independent way. This logic (division) makes sense in a growing demography, and also in peripheral areas (it is more difficult in central cities).
What happens when populations decrease, as they do in some European countries? Sure, we have shrinking cities, and then we have Detroit in America. Even if the city loses population, there are chances that the demand for built space will still exist, as it could be driven by other non- residential demands. Many things can happen:
- You can inherit your parent’s property and live there; this has been a common fact in history, and it is worth reminding that demographic growth has been slow over long periods of time, which explains the stability of the urban fabric in many cities up to the industrial age.
- Heritage can become an idle property; as you get no clients, you just have a home that no one uses. This has always existed, but now it could become more common.
- Even in a shrinking city, brothers or other relatives happen, so you could get in a trap as no agreement could be reached between those benefited by the inheritance; in the end, property could again end up idle.
Overall, inheriting in a shrinking city reinforces the use value of a property against its financial value; and you can only sleep in one bed per night (at least under normal circumstances), so if the inherited property is not adjacent to your home you would probably find complex to use both everyday. Conversely, inheriting in a shrinking city can increase the financial value of a property, but you will be able to use it only if you have other properties (you would probably prefer to have at least one sheltered bed every night…) or if you can subdivide the inherited property.
This catalyzer of urban change is real, but incremental. But for a disaster, inheritances are random, both in space and in time, even if you can suppose that a new neighborhood will have replaced its original population in 30-40 years due to old age.