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AI drafting for demolition plans

AI Demolition Plan Drafting

Renovation sets start with demolition plans, and those sheets are only as good as the existing conditions drawing underneath them and the site walk that confirmed it. Nomic drafts architectural and MEP demolition plans in CAD from existing conditions DWGs and site walk photos, marks what stays and what goes with keyed notes, and checks the demo sheets against the new work sheets before your architect or engineer reviews and stamps.

Start for freeAll drafting work
Last reviewed: November 2026

You send

  • Existing conditions DWGs or the record set as PDF
  • Site walk photos, including panel directories and nameplates
  • New work floor plans and MEP plans
  • Your demolition keynote list, line types, and CAD standards

Nomic hands back

  • Architectural demolition plans as DWG files
  • Electrical, mechanical, and plumbing demolition plans
  • Keyed demolition notes and general demolition notes on the sheet
  • A list of conflicts with new work and open questions for the design team
1234567ABCUNIT501UNIT502AMENITY503UNIT504UNIT505UNIT506UNIT507AMENITY508AMENITY509STAIRS21234EXISTING TO REMAINREMOVE1REMOVE PARTITION AND BASE, PATCH FLOOR27'-3"27'-0"27'-3"27'-3"27'-0"27'-3"94'-8"1ADEMOLITION PLANSCALE: 1/8" = 1'-0"N1234CONSULTING ENGINEERSREVISIONS1ISSUED FOR REVIEWPROJECTCEDAR LOFTSSCALE1/8" = 1'-0"DATE11/03/2026KEY PLANSHEET TITLEDEMOLITION PLANSHEET NUMBERAD-101

On the sheet

Demolition Plan, annotated

A demolition plan with existing walls to remain, partitions to remove, and keynotes tied to the scope.

  1. 1Partition to be removed, drawn dashed
  2. 2Keynote tied to the demolition notes
  3. 3Existing construction to remain
  4. 4Finish removal area

The problem

Demo sheets wait on redrawing what is actually there

A tenant floor renovation usually starts from a 15-year-old record set that no longer matches the space. Someone walks the floor with a camera, comes back with 300 photos, and redraws the partitions, doors, ceilings, and devices that were added since. Only then can the demolition plan be drawn: dashed for removed, solid for remaining, a keyed note on every wall, door, and casework run, and the same exercise repeated on the electrical, mechanical, and plumbing demo sheets.

Most demolition errors are coordination errors. A wall removed on AD-101 still appears on the new floor plan, a receptacle circuit that runs through a demolished wall also feeds devices that stay, or a duct removed on MD-101 still serves a room left out of the scope. Those misses become change orders, because the contractor priced exactly what the demo sheet showed.

01 / Draft

Demolition drawn from the existing conditions and the photos

Attach the existing conditions DWG, the site walk photos, and the new floor plan. Nomic marks each wall, door, ceiling, and fixture as to remain or to be removed, tags removals with your keyed demolition notes, and reads panel labels and nameplates in the photos so the MEP demo sheets name real circuits and equipment.

  • Removed items dashed and tagged, items to remain left solid
  • Keyed notes for partitions, doors, casework, finishes, and ceilings
  • Electrical, mechanical, and plumbing demo with circuits and equipment named
02 / MEP demo

MEP demolition that follows the circuits and the ducts

Nomic traces what each removal touches. Devices in a demolished wall are removed back to the panel or to the nearest box that stays, with the breaker labeled spare, and diffusers, VAV boxes, and plumbing fixtures are removed and capped at the points the engineer sets. Anything that also feeds equipment to remain is flagged.

  • Circuits traced to the panel from photographed directories
  • Ductwork and VAV boxes removed back to the main to remain
  • Plumbing fixtures removed and capped below floor or in wall
03 / Check

Demo sheets checked against the new work

Nomic compares the demolition plans with the new work plans so every removal has a reason and every new element has room. It also confirms the general notes call for the hazardous materials survey and flags walls it cannot confirm are non-bearing or unrated. Everything it drew is clouded.

  • Walls kept on new plans but removed on demo sheets flagged
  • Circuits feeding both removed and remaining devices listed
  • Bearing, rated, and shaft walls sent to the design team

Checked against

The code and documents behind every sheet

Name the editions the project is designed to and Nomic checks its own drawing against them before handing it back. Your engineer or architect of record makes the final call and stamps the set.

  • The existing conditions drawings and site walk photos
  • The new work floor plans and MEP plans
  • NFPA 241 for safeguarding demolition operations
  • OSHA 29 CFR 1926 Subpart T demolition requirements
  • EPA asbestos NESHAP, 40 CFR 61 Subpart M
  • Your firm CAD standards and demolition keynotes

How it works

From a sentence to a stamped set

  1. Step 1

    Ask for the drawing

    Say what the sheet needs to show and attach the backgrounds, markups, cutsheets, or photos. A sentence is enough to start.

  2. Step 2

    Nomic drafts it in CAD

    Nomic works in CAD on its own computer, on your layers and blocks, following how your firm drew the same thing before. It saves real DWG files to the project.

  3. Step 3

    Nomic checks its own work

    The drawing is checked against the code editions you name and the source documents. Everything Nomic drew is clouded, and open questions are listed.

  4. Step 4

    Your team reviews and stamps

    Your engineers and architects review the clouded changes, make the final call, and issue the set under their own stamp.

FAQ

Frequently asked questions

Yes. Nomic works in CAD on its own computer and saves demolition plans as DWG files. It marks items to remain and to be removed from the existing conditions drawing and site walk photos, adds your keyed demolition notes, and checks the demo sheets against the new work.

Yes. Nomic reads panel directories, nameplates, and device locations in the photos and existing drawings, then drafts electrical, mechanical, and plumbing demolition with circuits and equipment named. Circuits that feed both removed and remaining devices are flagged for the engineer.

Nomic can draft an existing conditions DWG from the record set and site walk photos first, reading nameplates and panel labels, then draw the demolition plan on top of the new background. Anything the photos do not show is listed as a field verification item.

The architect and the structural engineer of record decide. Nomic flags walls that look bearing, rated, or part of a shaft enclosure based on the drawings and photos, but it does not make the structural or life safety determination, and the stamped sheets stay with the design team.

No. Nomic drafts in CAD on its own computer and saves DWG files you open in AutoCAD or any DWG editor. Teams working in Revit receive DWGs and a change list their modelers can link or carry into the model.

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