Shelter should be a right for everyone.
Housing should be provided for eveyrone in a community regardless of their financial situation.
In order for free housing to be supported by the local community, it should be integrated with the rest of the local economy parameters - commercial, office, services.

A community should be capable of providing housing for all its members and interact with the rest of the surrounding communities.

People in a local community can contribute in many ways:
- Financialy by working in areas like services and commerce interacting with other communities even outside the city/country boudaries
- Working for the community, helping the maintainance and expansion of the facilities, providing services within the community.

Specific essential positions can be filled periodically by different people so every member of the community can help with the more menial but essential tasks.

A local community can also integrate education, healthcare, sports and recreation functions to form a self contained social structure.

Housing should follow a simple repeatable design made out of sustainable and cost effective materials; a design which is easily replicated by small and diverse building groups and is flexible enough to allow for diversity and variety of the end-result, so as not to end up being a mundane copy/paste function but reflect the diversity inside a community as well. Different materials, shapes, colours can be integrated.

This exercise is a concept on how this could work by applying some simple principles which can evolve and be further detailed. It is based on a simple Grid arrangement that can receive core structure modules - preferably timber - which will have flexible interiors and external add-on panels which can be optimised by end-users.

A timber structure 4mX4mX4m as simply designed as possible so that the result can easily be replicated by a small builder team.

This structure can take many forms depending its intended use.
Main uses (but not limited to)
- Communal / circulation area - vertical or horizontal
- Main usable area (office, residential etc)
- Wet area (kitchen, bathrooms etc)
- Open protected amenity area
- Utility and M&E area

The core module will have one fixed solid side that will add to the structural rigidity and will incorporate any piping and cabling required. The 4m height allows for suspended floors and ceilings for any horizontal piping and cabling that need to connect to the vertical ones.

The other sides will be designed according to the intended use. They can vary in form, solidness and rigidness according to the structural requirements.
External sides will involve panels with integrated structure,  insulation and openings. They can be further designed to include bespoke extensions to the main areas even adding some floorspace cantilevered outside the main structure.
Internal sides (which will connect to another core module) can be solid, or incorporate internal windows and doors of varying dimensions.

Two core modules can also connect without the need of an internal side to create a 4mX8m area (or even bigger areas -L-shaped etc -  following the 4X4 grid).

Communal/Circulation modules will incorporate communal seating areas, staircases and platform lifts that will allow  for up to 3-4 internal level changes.

Main usable areas will be left empty to be arranged by the users. They will incorporate electrical grid inside the floorspace so that power can be accessed comfortably.

Wet areas will incorporate the required plumping. As total height can be less than main usable areas, they can allow for intensive green roofs which can hold larger plants and can allow for the required draining systems as well.

Main open spaces just need the structure and the appropriate drainage systems in place.

Utility and M&E modules will be designed according to the requirements.

Modules will be able to be repurposed following the requirements of the grid they are laid on.

Core modules can be combined to create larger areas.

Larger areas can be combined to create larger clusters.

Larger clusters can be combined to create neighbourhoods.

Neighbourhoods can be combined to create City Blocks.

Organised small neighbourhoods can decide the level of privacy and outlook they need, the size and openess of their green spaces, the type of finishes and colours they would like to see in their outlook. The shape and size of the neighbourhood can be adapted according to ever-changing needs.

A dedicated engineering team can help the residents understand best practices of space arrangments, light distribution etc with proper structural monitoring and AI arrangement of areas.

A city block of 100mX100m has been modeled for the purpose of this exercise.

It is very important not to separate the housing from other uses - work, education or leisure related. A small community should be self reliant for most of its requirements. This urban unit can accommodate lots of uses over multiple levels.

The city block will house a local community. People will be able to live based on a services based system. Users can subscribe to the community uses allowing them to use modules and shape them according to their needs, while contributing either financialy or by working for the community providing services - each community will be able to provide shelter for people who cannot temporarily or permanently contribute in a work/financial way and care for them. When additional housing is required an Engineering team with the help of AI systems which will monitor structure, light, availability etc, will rearrange the existing modules and add new ones allowing the uses in place to relocate while keeping the same layout of homes/office space etc with minimum disruption to everyday life. The simple design of the Core Modules will make it easy to produce them locally, and the flexible design nature of the add-on structural panels will make sure the structural integrity is uncompromised and the users get their required sizes and layouts.

As AI and structural methods evolve, new modules of different forms might be introduced to allow for diversity with a different - non linear arrangement, a result of parametric modelling, allocating modules to follow sun paths or optimise wind efficiency etc, however the goal would be to keep things simple for cost and time efficiency when adding new housing modules. Also the easiness of construction by non specialised builder teams would be essential so that community members can undertake the expansion of the structure themselves.

Zoning:
- Ground floor levels can accommodate communal uses and open space along with commercial and limited residential uses (for accessibility purposes)
- Mid levels can accommodate office oriented use and again limited residential use. Other uses can be considered (education, healthcare etc)
- Top levels will be mostly allocated to residential and entertainment as there will be access to top level amenity spaces and sunlight
- The middle of the city block will accommodate industrial uses (creation of core modules) and distribution of additional built space. Also it can accommodate city block managment facilities (monitoring structure, allocating new uses etc)

The whole structure will be made out of timber Core Modules 4mX4mX4m