What Types of 2D CAD Drawings Does Existing Conditions Create?

Site Plans

A site plan, sometimes referred to as a plot plan, is the graphic representation of all existing site conditions. The site plan shows the full layout of the project. It includes where buildings, paving, utilities, and terrain features are located, all in one view.

Floor Plans

A floor plan shows room layout and spatial relationships with walls, doors, windows, stairs, fixtures, and furniture tied to grid and level datums for precise coordination across trades. Dimensions, tags, and schedules communicate sizes, clearances, and quantities. They support design, retrofit, and field verification.

Interior Elevations

Interior elevations are 2D drawings that show the interior of a building from various angles. They show the size and shape of a building. They also show the placement of windows, doors, and other features. The elevation callouts and keynotes align with floor plan references to enable direct cross‑checks in reviews and on-site.

Exterior Elevations

Exterior elevation drawings are used to show how a building looks from the outside. They document the outline of a building in detail, including the placement of windows, doors, curtain walls, porches, decks, loading docks, and more. Design professionals request as-built exterior elevations to help them see how the building levels stack and where windows and doors align.

Sections or Cross Sections

Sections are 2D drawings that show the cutaway view of a building, structure, or object, disclosing details of the internal structure.

Details

Details are 2D drawings that show a specific element of a building, structure, or object enlarged in more detail. The element is scaled for dimensioning and clarification purposes.

Isometric Drawings

An isometric drawing is a representation of a 3D object drawn on a flat plane that mainly contains 2D coordinates – the x and y axes. Although it uses a 2D coordinate system, it gives the illusion that a 3D system is being used. Isometric drawings are made by tilting the viewing angle to 30 degrees for all sides in the 2D plane.

Mechanical and Electrical Drawings

These drawings show important details about the plumbing, HVAC, electrical, and other mechanical systems (MEP) in a building. Standardized schedules and notes help with installation, coordination, and inspection. This applies to plumbing, HVAC, electrical, and low-voltage systems.

Reflected Ceiling Plan

A reflected ceiling plan displays ceiling height and materials. It includes level changes, sprinklers, smoke detectors, and more. The dimensions and tags help with trade coordination.

Roof Plan

A roof plan documents roof geometry, ridges, eaves/rakes/parapets, skylights, vents, chimneys, and mechanical curbs for construction coordination and review.

Contour Maps

Contour mapping produces a plan (bird’s‑eye) view that depicts elevation changes across a floor or surface using lines at fixed intervals to show grade and relief.

Deformation Maps

Deformation maps depict a built surface’s topography, showing floor or surface elevations at specific points with clarity and detail.

BOMA Measurements

BOMA (Building Owners and Managers Association) measurements provide industry-standard for rentable and usable square footage in commercial buildings. These measurements provide consistency for leasing, property management, and valuation. They include gross area, tenant area, and common area allocations based on BOMA standards.