The number of drawings required for house construction can vary significantly based on the size and complexity of the project, but a complete set will include dozens of individual pages across several major categories.1
For a typical new house build, the construction documents are segregated into the following main sets of drawings:
1. Architectural Drawings (The Design)
These drawings provide the overall vision, layout, and appearance of the home.2
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| Drawing Type | Purpose |
| Site Plan | Shows the location of the house on the lot, property lines, setbacks, and surrounding features. |
| Floor Plans | A top-down view of each floor, showing all room layouts, wall lengths, doors, and windows. |
| Elevations | Exterior views of all four sides (front, rear, left, right), showing height, exterior finishes, and roof pitch. |
| Cross-Sections | Vertical “slices” through the building (often through the staircase or a complex area) to show structural relationships, ceiling heights, and material layers from foundation to roof. |
| Roof Plan | Shows the shape, slope, and drainage of the roof structure. |
| Details & Schedules | Close-up drawings of complex assemblies (e.g., stairs, window frames) and lists of doors and windows. |
2. Structural Drawings (The Framework)
These are critical for the building’s stability and safety, detailing all supporting elements.3
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| Drawing Type | Purpose |
| Foundation Plan | Details the layout, dimensions, and specifications of the footings and foundation system. |
| Column Layout | Shows the precise placement and size of all columns. |
| Beam & Slab Layouts | Details the framing of the floor and roof, including the size and reinforcement (rebar) of all beams and slabs. |
| Excavation Plan | Shows the location and depth of trenches needed for the foundation. |
3. MEP Drawings (The Systems)
These cover the mechanical, electrical, and plumbing systems.4 For simple homes, these may be combined with the Architectural Floor Plans, but for larger homes, they are separate detailed sheets.
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| Drawing Type | Purpose |
| Electrical Drawings | Shows the location of all outlets, switches, light fixtures, electrical panels, and wiring circuits. |
| Plumbing Drawings | Details the layout of water supply lines, drainage/sewer pipes, fixtures (sinks, toilets), and the location of the septic tank or sewer connection. |
| HVAC Drawings | Shows the layout of heating, ventilation, and air conditioning systems, including ducts, vents, and unit placement. |
| Drawing Type | Purpose |
| Electrical Drawings | Shows the location of all outlets, switches, light fixtures, electrical panels, and wiring circuits. |
| Plumbing Drawings | Details the layout of water supply lines, drainage/sewer pipes, fixtures (sinks, toilets), and the location of the septic tank or sewer connection. |
| HVAC Drawings | Shows the layout of heating, ventilation, and air conditioning systems, including ducts, vents, and unit placement. |
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