Carlson Civil Suite
AutoCAD/IntelliCAD-based desktop civil design suite (Carlson Civil, Survey, Hydrology, GIS) for grading, roads, lots, and hydrology. Sold as a perpetual license (Civil Suite bundle around $4,450) with optional annual maintenance and a subscription option. Scriptable via AutoLISP and .NET through its AutoCAD/IntelliCAD engine; reads/writes DWG, DGN, and LandXML.
Perpetual-license civil CAD suite for grading, roads, lots, and hydrology -- public perpetual pricing (~$4,450 bundle) and AutoLISP/.NET scripting via its AutoCAD/IntelliCAD engine give it strong interoperability (DWG/DGN/LandXML), though it is desktop-only with no REST API.
Rubric Scorecard
| Criterion | Score | Evidence |
|---|---|---|
| Value for the price | 4/5 | perpetual license (~$4,450 Civil Suite bundle); optional ~10%/yr maintenance; subscription option available, from $4450 Source → |
| Agent Friendliness | 3/5 | API: none (desktop CAD) |
| Ease of adoption | 2/5 | -- |
| Portability & lock-in | 5/5 | 4 file formats |
| Interoperability | 4/5 | 2 integrations |
Pricing
How we verified this: we checked Carlson Civil Suite against its live site and an independent source — thatcadgirl.com. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-19.
Evidence
File formats
| Format | Direction | Support |
|---|---|---|
| DWG | both | full |
| DGN | import | unknown |
| LandXML | both | full |
| DXF | both | full |
Integrations
Sources
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