Architectural plans are usually the easiest drawings for a homeowner to recognize, but they still contain more information than most people realize. Three drawing types are especially important: floor plans, elevations, and sections. Together they explain the building in three different directions.
Floor Plan: Looking Down From Above
A floor plan is a horizontal view through the building. It shows the arrangement of rooms, walls, openings, fixtures, stairs, cabinetry, and many dimensions. Think of it as the drawing that explains how you move through the house.
- Room names and uses
- Wall locations
- Doors and windows
- Key dimensions
- Cabinetry and fixtures
- Stairs and circulation
- References to sections and details
Elevation: Looking at the Building From the Outside
An elevation is a vertical exterior view. It communicates the shape and appearance of each side of the building. Elevations help reviewers and builders understand roof lines, exterior openings, finish transitions, vertical dimensions, and the relationship between different building elements.
Section: Cutting Through the Building
A building section is a vertical slice through the house. It can show information that neither a floor plan nor an exterior elevation can explain clearly: floor-to-ceiling relationships, roof structure, foundation relationships, wall assemblies, attic spaces, vertical clearances, and changes in level.
Why All Three Matter
A floor plan may show that a wall exists. The elevation may show what that wall looks like from outside. The section can show how the wall connects to the roof and foundation. Construction depends on all three perspectives working together.
What Else Is Usually Part of an Architectural Set?
- Cover sheet and project information
- Life-safety or code information when applicable
- Roof plan
- Door and window schedules
- Interior elevations
- Wall sections
- Construction details
- Finish or material notes
- References to structural and MEP documents
The Coordination Test
Architectural drawings should agree with each other. If a window appears on the floor plan but not on the elevation, or the roof configuration does not match between the roof plan and building sections, the inconsistency can create questions during review or construction.
A3MS Takeaway
The architectural set establishes the spatial and visual framework for the project, but it is only one part of the total construction package. A strong permit set coordinates architecture with structure, electrical, plumbing, mechanical, energy, site, and other required documents.
Authoritative References
AvisoDisclaimer
General educational information only. Permit, design, engineering, and documentation requirements vary by jurisdiction, project scope, property conditions, and the code edition in effect at permit submission.