Platform · Revit API · Dynamo · APS
Revit Automation
for the BIM work that isn't design
Sheet setup. View placement. Schedules. Version comparison. It's the same pattern on every project, and it's what your BIM coordinators actually spend their days on. We build Revit API add-ins, Dynamo workflows, and APS platforms that do the pattern work, so coordination time goes to coordinating.
BIM model in → Rules applied → Sheets · schedules · change reports out
The challenge
Where BIM Coordinator Hours Actually Go
Ask a BIM coordinator what they did this week. Very little of the answer is design. Most of it is model housekeeping that follows the same rules on every single project.
Housekeeping at Model Scale
Hundreds of families, thousands of parameters, views multiplying by the week. Keeping it all clean and current is a standing tax on every project.
Sheets, One at a Time
Create the sheet, place the views, name it to standard, annotate, repeat. A hundred sheets per project, each assembled by hand from the same recipe.
What Changed Between Versions?
A new model lands and someone has to answer: what moved, who moved it, what breaks downstream. Answering by eyeball takes hours, and still misses things.
What we build
Revit Automation Across the API, Dynamo, and the Cloud
Custom Revit Add-ins (.NET)
Ribbon commands built on the Revit API for documentation, family management, parameter work, and model QC, running inside Revit and enforcing your standards.
Learn more → DYNAMO · CUSTOM NODES + SCRIPTSDynamo Workflow Automation
Dynamo scripts and custom nodes for the jobs between clicks and code: room scheduling, quantity take-offs, and model validation your team can run themselves.
Learn more → MODEL IN → CHANGE INTELLIGENCE OUTBIM Model Intelligence (APS)
A web platform that diffs model versions and reports every change, built on Autodesk Platform Services, reviewable without opening a Revit seat.
Learn more → MODEL IN → DOCUMENTATION PACKAGE OUTAutomated BIM Documentation
Your sheet standard as executable rules: sheets created, views placed, annotation applied: the whole documentation package generated from the model.
Learn more →What we build with
Dynamo vs API vs cloud
The Three Ways to Automate Revit, and When Each One Wins
Revit automation and BIM automation run on three levels: Dynamo graphs, compiled Revit API add-ins, and cloud automation through Autodesk Platform Services. Knowing which level a problem belongs to is most of the architecture.
| Dynamo | Revit API Add-ins (C#) | APS / Cloud (Revit engine) | |
|---|---|---|---|
| What it is | Visual programming: node graphs driving Revit | Compiled add-ins with ribbon tools, dialogs, and events | Revit's engine in Autodesk's cloud: Design Automation for Revit |
| Best at | One-off geometry studies, parameter batch edits by BIM staff | Repeatable firm-wide tools: sheets, families, QA, data export | Processing whole model sets; automation behind web apps |
| Built by | BIM specialists | Developers who know Revit's data model | Developers who know Revit and cloud |
| Breaks down when | The graph becomes the product: fragile, slow, single-user | Volume outgrows desktop seats | Rarely, but it needs the add-in logic built first |
| Typical project | Parametric studies, quick batch renames | Sheet/view generation, family managers, model checkers, exports | Portfolio-wide model audits, cloud document generation |
The pattern in most AEC firms: a heroic Dynamo graph that became load-bearing. Graphs are brilliant for exploration and brittle as infrastructure. When a workflow becomes firm-standard, its logic belongs in a compiled add-in with versioning and error handling. Related reading: automating Autodesk Construction Cloud workflows.
Buy vs build
BIM Automation Software: Buy, Build, or Both?
Most teams searching for BIM automation software are weighing the same three options. All three are legitimate; they solve different problems.
Off-the-shelf BIM tools
Products like pyRevit, DiRoots, Ideate, and CTC cover the common cases: batch renaming, sheet duplication, parameter tools, model health checks. If your need matches their feature list, buy (or install the free ones); nothing we build beats a solved problem.
Custom BIM automation
The moment the automation must encode your standards (your sheet logic, your family conventions, your QA rules, your data pipeline to estimating or fabrication), feature lists stop fitting. That's custom add-in or APS territory: software shaped to the firm, owned by the firm.
Both, in layers
The pattern that works in practice: off-the-shelf tools for generic hygiene, custom automation for the workflows that differentiate you. We build the custom layer, and we'll tell you honestly when an existing tool already covers the job.
The test is the same one we apply to CAD automation generally: if the decisions repeat and they're yours alone, encode them once as rules and let software execute them per project.
Scope
What Revit & BIM Automation Can Take Off Your Team's Plate
Sheet & View Generation
Sheets created, views placed, viewports aligned, and title blocks filled by rule: documentation sets assembled in minutes, not afternoons.
Family Management
Families created, updated, and audited programmatically, with parameter standards enforced across the library instead of policed by memory.
Model QA & Standards
Model checkers that catch naming violations, unplaced rooms, and broken links before they reach coordination. Every model, every time.
Data Export & Schedules
Quantities, schedules, and parameter data flowing to Excel, databases, and estimating systems automatically, keeping the model the source of truth.
Batch Model Processing
Upgrades, purges, exports, and audits across entire project portfolios, run in the cloud with Design Automation for Revit, not overnight on someone's workstation.
Interop & Integration
Revit data synchronized with AutoCAD, IFC, Construction Cloud, and project management systems: coordination that doesn't depend on manual exports.
Results
What BIM Teams Measure After Rollout
"Nag is excellent to work with. They figured out a difficult API that 3 other developers couldn't figure out and delivered 2 days ahead of schedule." Andy Arledge · President · Appraiser Genie
Resources
Reading for Teams Planning BIM Automation
Autodesk Construction Cloud Automation
What the Construction Cloud APIs open up: automated workflows and BIM data that moves without exports.
Read article → AUTOMATION STRATEGYEngineering Automation Trends 2026
From AI-assisted modeling to cloud-native platforms, and which of this year's shifts deserve your attention.
Read article → CAD CUSTOMIZATIONGuide: CAD Customization & Automation
From add-ins and macros to full automation platforms: a map of the options and when each one fits.
Read article →FAQ
Asked on Nearly Every First Call
Dynamo or a Revit add-in: which do we need?
Can Revit automation generate our sheets and documentation?
Can it enforce our BIM standards automatically?
Does it work with Autodesk Construction Cloud / BIM 360?
Do our add-ins break with each annual Revit release?
How long does a Revit automation project take?
Free · no obligation
What Does Sheet Setup Cost You Per Project?
Most teams have never counted. The audit does: we map your documentation and model-management workflow, find the patterns that repeat project to project, and rank the builds by hours returned to your coordinators.
The change-intelligence platform we built for model versioning →
- Documentation and model-management workflows, mapped
- The patterns that repeat on every project, identified
- Add-in, Dynamo, and APS builds ranked by hours returned