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Best AI for Existing Conditions Surveys in 2026
Last reviewed: November 2026

Every renovation, tenant fit-out, and MEP retrofit starts with the same question: what is actually there? An existing conditions survey answers it with two kinds of information. Geometry covers wall locations, ceiling heights, column grids, and duct mains. Equipment data covers what the panel schedule says, which breakers are spare, what the rooftop unit nameplate reads, and which valves are tagged. Old record drawings rarely match the field, and a survey that misses a second panel behind a storage rack shows up later as a change order.

What is an existing conditions drawing?
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420416412PROPOSED BUILDINGFFE 418.50WWSMH-1RIM 412.30SMH-2RIM 410.85SMH-3RIM 409.12CBCBPROPERTY LINE8" PVC SAN @ 0.50%1ASITE PLANSCALE: 1" = 30'-0"NCONSULTING ENGINEERSREVISIONSPROJECTWESTFIELD LABSSCALE1" = 30'-0"DATE02/06/2026KEY PLANSHEET TITLESITE PLANSHEET NUMBERC-101

The shortlist

Top picks for Existing Conditions Surveys

  1. 1MatterportArchitects, owners, and contractors who want one platform to capture a building and order DWG or LOD 200 BIM existing conditions files
  2. 2NavVis VLX 4 and IVIONSurvey and reality capture teams documenting large or dense facilities, such as hospitals, plants, and data halls, for scan to BIM
  3. 3NomicMEP and architecture teams that walk a site with a phone and need existing conditions drawings plus an equipment survey report in the firm’s standards
  4. 4Polycam BusinessSmall teams that want to scan an interior with a phone and get a measured floor plan into CAD the same day
  5. 5Twindo (formerly Canvas)Residential and light commercial designers who want an as-built drawn for them rather than drafting from a scan

Rankings

6 tools ranked for existing conditions surveys

01

Matterport

LiDAR capture with the Pro3 camera, plus CAD, BIM, and E57 point cloud deliverables ordered per space

Profile

Best for: Architects, owners, and contractors who want one platform to capture a building and order DWG or LOD 200 BIM existing conditions files

  • Pro3 captures indoors and outdoors with roughly 20 mm accuracy at a 10 m range, per Matterport
  • CAD file add-on delivers DWG, DXF, PDF plans, and an RCS point cloud, with architecture, furniture, and electrical options
  • The 3D tour lets the whole team revisit the space and take measurements after the site visit
  • Exports E57 and BIM files, with a Revit plug-in for importing point clouds

Pricing: Professional from $90/month billed yearly; CAD files priced by square footage, from $100 per space

02

NavVis VLX 4 and IVION

Wearable mobile mapping with 3 mm point cloud resolution, processed and shared through NavVis IVION

Best for: Survey and reality capture teams documenting large or dense facilities, such as hospitals, plants, and data halls, for scan to BIM

  • VLX 4 captures in motion with 3 mm point cloud resolution aimed at LOD 350 and MEP work, per NavVis
  • NavVis states absolute accuracy of up to 5 mm in independent testing of VLX 3
  • Exports E57, LAS, and RCS for AutoCAD and Revit, and the IVION add-in compares the as-built against a Revit model
  • IVION keeps scans, panoramas, and deliverables for a site in one record

Pricing: Contact NavVis for hardware and IVION pricing

03Built by Nomic

Nomic

Drafts existing conditions DWGs and survey reports from site walk photos, reading nameplates and panel labels

Best for: MEP and architecture teams that walk a site with a phone and need existing conditions drawings plus an equipment survey report in the firm’s standards

  • Reads site walk photos, including equipment nameplates and panel directories, and records the data in the survey report
  • Drafts the existing conditions DWGs on your layers, blocks, and title blocks, working from an old background or record drawing when you have one
  • Lists what it could not read or verify, such as a faded breaker label, as open questions for the next site visit
  • Clouds what it drew so the reviewer starts with the new information
  • Connects to Autodesk Forma, Bentley ProjectWise, Trimble ProjectSight, SharePoint, Egnyte, Fieldwire, Google Drive, Box, Dropbox, Microsoft Teams, Outlook, and Gmail; SOC 2 Type II

Pricing: Free; Individual $20/mo; Business $40/user/mo with a 25 seat minimum; Enterprise custom

04

Polycam Business

iPhone and iPad Pro LiDAR scanning with editable 2D and 3D floor plans and layered DXF export

Best for: Small teams that want to scan an interior with a phone and get a measured floor plan into CAD the same day

  • Floor plans process on the device in minutes and export to layered DXF, PDF, and SVG
  • Polycam publishes a tolerance of about half an inch on standard interior captures
  • Point cloud exports and a shared team library on the Business plan
  • No per-project fee

Pricing: $400/user/year; Enterprise $1,200/user/year with a three user minimum

05

Twindo (formerly Canvas)

Phone and tablet LiDAR scans turned into DWG, Revit, and other CAD files by a Scan to CAD service

Best for: Residential and light commercial designers who want an as-built drawn for them rather than drafting from a scan

  • Scan to CAD returns layered 2D DWG plans or 3D Revit, SketchUp, and other models
  • Most measurements land within 1 to 2 percent of tape or laser checks, per Twindo, and you can submit critical dimensions
  • Plan to CAD and Point Cloud to BIM services cover other inputs
  • Free to scan two spaces a month

Pricing: 2D floor plans from $0.14 to $0.18/sq ft; 3D models from $0.22 to $0.26/sq ft

06

Autodesk ReCap Pro

Registers laser scans into point clouds that AutoCAD, Revit, and Civil 3D attach directly

Best for: Teams with their own terrestrial scanner or a scanning subcontractor who need registered point clouds in Autodesk tools

  • Registers scans with or without targets and reports registration accuracy
  • Reads most scanner formats plus E57 and LAS, and saves RCP projects AutoCAD and Revit attach directly
  • Scan to Mesh Local is included in the subscription
  • Included in the AEC Collection

Pricing: $390/year or $50/month

Frequently asked questions

Answers to common questions about this comparison.

For geometry, a reality capture tool: Matterport or NavVis for building-scale scans, Polycam or Twindo for phone-based interiors, and ReCap Pro to register laser scans. For drafting the existing conditions DWGs and recording equipment data from photos, Nomic. Many teams use a scan for the geometry and Nomic for the drawings and survey report.

Yes, with limits. Nomic reads site walk photos, including nameplates and panel labels, and drafts existing conditions DWGs and a survey report. Dimensions taken from photos are not survey-grade, so verify critical geometry with a scan or field measurements.

Polycam publishes about half an inch on standard interior captures, and Twindo says most measurements fall within 1 to 2 percent of tape or laser checks. Both note that large spaces, glass, and reflective floors reduce accuracy. For coordination in tight ceilings or fabrication, use a professional scanner.

Mostly no. Scans record what is visible, so a CAD deliverable may show a panel or a rooftop unit as geometry, but not the panel directory, breaker sizes, or nameplate ratings. That data comes from photos and notes taken during the site walk, which is the part Nomic reads and records.

For design and planning, usually. Matterport rates the Pro3 at roughly 20 mm at 10 m and delivers BIM files at LOD 200. For layout, fabrication, or survey control, pair it with a terrestrial laser scanner or a survey.

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Best AI for Existing Conditions Surveys in 2026: Compared | Nomic