The communal core is the one place every resident visits daily, so it sits at the centre of the housing, no more than a 2-3 minute walk from any home, and holds the gathering hall, the primary water point, an open plaza of 200-400 m² and the medical station. Its plaza doubles as the emergency assembly area, so it must be big enough to hold the whole population standing.
Part of Settlement Layout for 150 People
The communal zone is the shared centre of a settlement: governance, water, gathering and first aid in one reachable place.
Water And The Hall Draw Everyone To The Same Spot
The layout guide puts five things in the core: the Community Gathering Hall, the communal kitchen and dining area (which may be part of the hall), the well or primary water point, an open plaza, and a medical station in or beside the hall. Siting the water point here is deliberate: collecting water is a daily social event, so it brings people together.
Worked Example: Does The Plaza Hold Everyone?
Inputs: plaza 200-400 m²; population 100 to 150; the hall guide’s standing-room allowance of 0.5-0.7 m² per person.
- Floor area per person if everyone stands: 150 × 0.5 = 75 m² to 150 × 0.7 = 105 m².
- The plaza supplies 200-400 m² for 150 people, which is 200 ÷ 150 ≈ 1.3 to 400 ÷ 150 ≈ 2.7 m² per person.
- The smallest plaza therefore gives about twice the standing allowance (200 ÷ 105 ≈ 1.9).
So the plaza assembles everyone standing with room to spare. It does not leave room for market stalls and a crowd at once: size toward 400 m² if the plaza hosts markets.
Water demand at the point: the community-water guide’s minimum of 20 L per person a day is 150 × 20 = 3,000 L a day, which at 20 L per bucket is 150 bucket trips a day (Community Water System). Plan for queuing at morning and evening, and several taps or a wide apron rather than one.
What You Need
- The centre of the housing plan — the core is found, not chosen
- A drained, level site — not a low point where runoff collects (Drainage Ditches)
- Primary paths radiating to every cluster (Path Network Design)
Method
Step 1: Locate the centre of the planned housing and test the walking time from the farthest unit: 2-3 minutes at an assumed 5 km/h is roughly 170-250 m.
Step 2: Put the water point on the plaza edge, drained so spillage runs away from the hall and from any drinking supply, with an apron that slopes away from the source (Well Protection).
Step 3: Face the hall onto the plaza with its exits opening onto open ground, not onto a lane or a store, so a full hall can empty outward.
Step 4: Keep noisy work out. Even a small workshop near the hall defeats the speech acoustics inside it.
Common Mistakes
- Putting the hall at the edge — long walks reduce use.
- Making the plaza a drainage sump.
- Burying the medical station deep in the hall — it needs a door to the outside for stretchers.
Safety
Treat the core as the place a crowd gathers
A fire or alarm sends everyone to the same place. Keep the plaza clear of storage, woodpiles and parked carts, and keep every path into it wide enough for a stretcher and a crowd moving in both directions.
What’s Next
- Learn next: Emergency Assembly Areas — using the plaza when it counts
- Combine with: Functions and Zones — what the hall itself holds