- Internal drainage pipe work, sizing, routing
- Internal water supply pipe work, sizing, routing
- Duct / Shaft drainage piping, sizing
- Duct / Shaft water supply design (system diagram)
- Vent / Antisyphonage pipe design routing
- Water supply transfer pumps, booster pumps, HNS etc
- Water Treatment filter units
- Kitchen water supply & drainage design
- Roof rainwater collection and discharge design
- External storm drain and rain water harvesting
- External water supply, drainage, man holes, gully etc
- Material proposals for pipes, valves etc
- Hot water system design and details
- STP /Septic tank capacity, requirements
