ModelData is an Autodesk Revit add-in from underbim, a Portugal-based BIM consultancy with experience in BIM, Revit training, consulting, and software development since 2001. It is one of eight add-ins in ub.Suite Edition 1, released in late October 2026. underbim positions it as a “data workbench” to “build, inspect, calculate and refine Revit schedule and model data with more control over the logic behind the result.” Rather than replacing Revit schedules with a separate data viewer, ModelData extends the schedule workflow with richer field sources, logical filters, grouping, calculated and combined values, investigation in the model, and reusable definitions and results. It is sold individually or as part of the complete ub.Suite.
This summary is based primarily on the text of the official ModelData product page, supplemented by underbim’s website and suite announcement. The product page is marketing material: it describes capabilities at a high level, and some feature areas are named without detailed explanation. No user guide content, independent review, or hands-on testing was available, so those gaps are identified in the open-questions section rather than filled with assumptions.
Core Concept: Work with the Logic Behind the Schedule
The product idea is to extend Revit’s schedule workflow “with filters, grouping, derived values and model context — while keeping the native Revit schedule at the centre.” underbim frames this as four connected layers:
- Input: native and semantic fields.
- Logic: filters and structure.
- Data: calculated and combined values.
- Context: investigation in the model.
The product page includes an illustrative data-workbench preview listing walls with Element, Level, Calculated, and Status columns, in which one row is flagged “CHECK” while the others show “OK.” This suggests that calculated values and status-style results can be used to flag items for review. Because it is a marketing preview, the specific rules behind such a status column are not explained.
Six-Step Workflow
underbim describes a connected workflow in which each step, “from source data to final output,” remains part of the same process:
- Fields: choose native, semantic, and derived data sources.
- Filter: build conditions and logical groups around the result.
- Structure: sort, group, and organize the schedule output.
- Calculate: create concatenations and calculated data where needed.
- Investigate: move from rows and values back into model context.
- Output: keep the Revit schedule or continue into reusable results.





















