This should be more properly called Village on the Cheap, but there is no limit to the basic question:
How would a settlement for a decent number of people look like, if it was built out of the very cheap, and often simple technologies, that still offer a lifestyle comparable to today's standards?
Many of these concepts were designed for refugee camps, and as temporary shelters, but they have the potential to serve for permanent living, with all the comforts (some assembly may be required). Due to cost and other reasons are decentralized structures preferred.
Requirements and Assumptions
What do we assume for this concept to work? We will make the job relatively easy for us, but we can eventually drill down to the details, and see how other environments impact the 'City'. So what does the city have:
- first off, sufficient space; that should be easy
- there is abundant fresh water - not the same as drinking water
- a climate where composting toilets work, which excludes the subarctic and other cold places
- small amount of firewood to augment the solar cookers
Things left out for now:
- medical services
- transportation inside of the 'city'
- initial import of materials and resources
- larger organizational structures (states)
Hospitals and schools depend a lot on available budget. A start to solving these topics is train people to deal with the common cases at a neighborhood level to take the load off. The rest is out of scope here, or to be covered later.
Household On The Cheap
The basic unit of living, one household can be quite self-sufficient.
In terms of cost:
- A hexayurt-type house itself is $300 - $1200 per unit. It could be available under $500 in materials suitable for 20+ years of use in non-hurricane climates, and more like $1000 in hurricane-resistant materials.
- per house it's $200 for the solar cooker, the stove, the solar panels, the lights, the batteries and the housing for the shitbucket toilet infrastructure unit. Probably less, but $200 is safe.
This cuts the start up costs for essential services a long, long way. Means your initial population can give it a go for, say, $2,000 of survival infrastructure per household, plus a bit more for whatever tools they need to earn a living.
Assuming 4 people living in a household, and 100 people (small village), makes $50,000. 1000 people makes it $500,000. Not that much for something semi-permanent.
(this should be moved to a separate part calculating ALL the costs)
- devices powered by simple sources like AA batteries or hand crank; also solar and wind power
- all day solar charger
- lighting with efficient light sources
- backing up by more conventional means as generators? (more likely a last resort)
- transported in by trucks
- solar water pasteurization and/or other means (have shiny silver huts arranged as people see fit, with *small* - $100 or even smaller - solar panels on the roof, water delivered in five gallon buckets by pickup truck)
- in modern households can the demand climb up to 200 liters per day; more conservative estimates speak in figures of 5 liters of drinkable (or distilled) water per day; and 20+ liters of otherwise useful water (both numbers can be pushed down even more, depending on the equipment and willingness of the inhabitants)
- solar cookers and various efficient stove designs
- storage of food - dry storage should be guaranteed by the housing itself; what about refrigerating?
- the Solar Funnel Cooker is an effective cooking device, with some potential to work as a fridge at night
- if a more permanent effect is required, a 'zeer pot' can be employed.
- failing that, there are refrigerators with sufficiently low consumption, if the energy is supplied (could be shared between several households).
- several efficient waste disposal systems
- human waste could be hauled off by similar means as water is transported in, to be composted at the edge of town
- see this extensive report (with a summary here) for more on cheap sanitation
Groups/Clusters of Households
Certain key pieces of equipment are productive enough to supply several households at once, or too expensive/energy consuming for one. The size of such a 'cluster' will depends on the resources that need sharing. (While it is out of scope here, this also means potential for conflict.)
- fast chargers powered by a large solar panel
- transport of water
- will every house need their toilet? What about other amenities (bathrooms, showers, etc)?
Village On The Cheap
A complete settlement, with all the services on the lowest level possible.
- waste disposal?
- road maintenance?
- communal center/marketplace/cultural center/announcements/… - and any other 'public' needs and outlets
- list the various ways of affordable living, what they are good for, what they require (costs, materials, time), where to use them, etc. - started
- list the other means of survival
- some thoughts on the transportation needed - of people and stuff
- while the whole concept is simplistic, there are still places to drill the costs down, and go for the absolutely barest minimum needed for survival - all should be noted