Plan Chat

As-built floor plans: from your measured field sketch to CAD

An as-built floor plan starts with measuring on site; the slow part is drafting it afterwards. Photograph the field sketch with your measurements and Plan Chat’s AI drafter draws the existing floor plan as CAD: walls with thickness, doors and windows where you marked them, dimension chains, room names and areas. Correct anything in a sentence, then deliver a PDF sheet or a DWG/DXF for the designer.

Some new accounts get their first drawing free while we test it.

CAD floor plan drawn by the AI drafter: structural grid, hatched walls, doors with swings, dimension chains, room tags with areas, room schedule and legend
A family house, 12 × 10 m, drawn from a short brief in about three minutes. Watch it being drawn.

How it works

  1. 1. Measure and sketch on site

    Rooms, wall lengths, openings and ceiling notes on paper or a tablet, the way you always do.

  2. 2. Upload the sketch

    A photo or a scan of each floor. The drafter uses your numbers as they are and tells you where it had to assume something.

  3. 3. Review and deliver

    Check the dimension chains against your notes, correct by chat or with the CAD tools, then export DWG, DXF or a scaled PDF.

Your measurements win

Written dimensions are used exactly; where a closing dimension does not add up, the drafter says so instead of hiding it.

Existing-conditions ready

Hatched walls, door swings, windows, stairs, fixtures and a room schedule with areas, on standard layers for the remodel design.

Floor by floor

Draft each level as its own drawing from its own sketch; every drawing keeps its versions.

What you get

DXFLayered, opens in AutoCAD, BricsCAD, DraftSight, LibreCAD, QCAD, Rhino, SketchUp (import) and Revit (link).
DWGAutoCAD 2010 format, so every AutoCAD from 2010 on and most DWG-compatible programs open it.
PDFA3 landscape sheet plotted to a true scale (1:50, 1:100 …) with a border and a title block.

Plus a 3D model built from the same walls and openings, photoreal renders of any version, and every version kept with its own link.

Layers in the drawing

A-WALLwalls, with A-WALL-PATT for the cut hatch
A-DOOR / A-GLAZdoors with swings, windows
A-GRIDstructural grid with bubbles (A, B, C … / 1, 2, 3 …)
A-ANNO-DIMSdimension chains, overall and per bay
A-ANNO-TEXTroom names, numbers and areas, room schedule
A-FURN / A-FLOR-FIXTfurniture, kitchen and bathroom fixtures
A-FLOR-STRS / A-SITE / A-PLNTstairs, site elements, trees

Tips for the best result

  • Write overall lengths and every room dimension; add wall thickness at a few openings.
  • Mark doors with their swing and windows with their width.
  • Note the unit on the sketch (ft-in or metres).
  • Photograph each sheet flat and straight from above.

Questions

How do I turn field measurements into an as-built floor plan?

Sketch the floor on site with your measurements, photograph the sketch and upload it to Plan Chat. The AI drafter draws the existing floor plan as CAD using your dimensions, and you download DWG, DXF or a PDF sheet.

Does the AI measure the building?

No. You (or your surveyor) measure on site; the AI does the drafting. It can also redraw an existing plan from a scan or PDF if one is available.

Is the result a certified as-built drawing?

No. It is a drawing of what your sketch says, drafted by AI. Check it against your field notes; drawings for permits or legal records need the sign-off your jurisdiction requires.

Who uses this?

Remodel designers, drafters, home inspectors, property managers and contractors who need construction as-builts of the floor plan and already measure on site, but want the drafting done faster.

What does it cost?

Plans from $12 a month (AI Architectures credits). A floor drafted from a sketch usually uses 700 to 1,800 credits; DWG, DXF and PDF downloads are included.

Try it with your own plan

Drawings, changes and renders use credits from an AI Architectures plan, from $12 a month; DXF, DWG and PDF downloads are included. See pricing.

Open the CAD studio

More ways to use Plan Chat

AI concept drawings can contain mistakes: check dimensions and have a licensed architect or engineer review a plan before you build or apply for a permit. Plan Chat is part of AI Architectures by 20Vision: 500,000+ hours of drafting, modelling & rendering saved, 280 years of full-time work our users got back, across 80,000+ designs.