Residential Drainage System AutoCAD Drawing Free Download | MEP Projects
Looking for a complete drainage solution for multi-storey residential buildings? This detailed AutoCAD DWG file includes a full 7-floor + roof drainage layout with sanitary + stormwater systems, invert levels, manhole connections, and a comprehensive legend block.
Whether you’re a MEP draftsman, plumbing designer, or student, this drawing provides everything from pipe routing to rooftop drainage discharge.

Drawing Highlights
- 7 floors + roof stormwater layout
- Sanitary system with connected toilets, basins, floor traps
- Legend block for pipes, manholes, connections & symbols
- Manhole system with number tags, sizing, and depth
- Includes Invert Levels for slope management
- Downpipes from roof integrated into building stack
- Proper layer management and scaling
File Details
| Project Name | BLOCK 46 – Building Type-01 |
| Drawing Type | Complete Drainage (Sanitary + Storm) |
| File Format | .dwg (AutoCAD 2010 or newer) |
| File Size | ~4.43 MB |
| Special Features | Invert Levels, Manhole Numbering, Legend |
| View Levels | Floor-wise, vertical stacks, roof drains |
| Uses | BOQ, Site Supervision, Reference |
Stormwater + Invert Level Explanation
This DWG file includes stormwater discharge layout from roof levels with proper slope management. All lines include invert levels, helping estimate pipe depths and trenching.
- Invert level = bottom interior surface of the pipe
- Stormwater collected from roof via downpipes
- Manholes shown at access points and junctions
Why Use This DWG?
- Real multi-floor MEP drainage coordination
- Great for training, BOQ work, or real-site execution
- Time-saving template for similar residential towers
- Ideal for student projects and technical reviews
This Drainage Project Best For:
- MEP Draftsmen
- Plumbing Consultants
- BOQ Estimators
- MEP Trainers and Students
- Revit/BIM Modelers using DWG as base reference
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Multi-Floor Drainage AutoCAD Drawing Free Download | 7 Floors + Roof Storm water Plan DWG
Click below to access the full DWG with sanitary + stormwater layout, invert levels, and rooftop connections.
Download Complete Residential Drainage System
Final Thoughts
This is not a basic DWG — it’s a complete technical resource for real-world drainage systems. With stormwater layout, legends, manhole tracking, and invert levels, this DWG file gives you exactly what you need for accurate site implementation or study.
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