| Materials | Development capacity | Percent | Area (meter) |
| Brick and iron | High | 33.34 | 899,584 |
| Concrete skeleton | Low | 7.89 | 212,905 |
| Metal skeleton | Moderate | 12.20 | 329,140 |
| Cement block | Moderate | 30.61 | 825,987 |
| Composite | Very high | 10.16 | 274,208 |
| Sun-dried brick and wood | Very high | 5.80 | 156,688 |