On most projects, checking a drawing set against the building code is still a manual job. Someone opens a 50-page PDF, opens the relevant code alongside it, and works clause by clause, cross-referencing dimensions, materials, and ratings by hand. It is slow, it is expensive, and it is exactly the kind of repetitive, high-stakes work where small misses turn into expensive rework.
AI changes the economics of that work. This guide explains, in plain terms, how an AI compliance platform reads your drawings and BIM models, what it can check, and why citations matter more than answers.
Why does manual code checking break down?
A residential drawing set can run to dozens of sheets, and the code that governs it runs to hundreds of clauses. A reviewer has to hold both in their head at once: the geometry on the page and the requirement in the regulation. Three things make that hard at scale:
- Volume. Every revision means re-checking, and most projects revise many times before submission.
- Fragmentation. The information lives in different places: dimensions on the drawing, materials in a schedule, fire ratings in a spec, and the rule itself in the code.
- Consequence. A missed clause caught after construction starts is a defect claim, a delay, or a re-submission.
How does AI read a drawing set and a BIM model?
The first job is extraction. A compliance AI does not just "look at a picture" of a plan. It parses the document into structured data: dimensions, callouts, room names, wall types, glazing, sill heights, and the spatial relationships between them. When you provide a BIM model (IFC), it reads the model natively, so a wall is a wall with a fire rating and a thickness, not a set of lines to guess at.
With both the drawing and the model parsed, the AI has a structured picture of the building. That is what makes a real compliance check possible, rather than a generic answer that sounds plausible.
What does UptoCode actually check?
Compliance is not one thing. A useful check spans the domains a surveyor would work through:
- Fire safety - fire ratings, separation walls, egress paths, smoke detection.
- Structural - load paths, bracing, member sizes, foundation details.
- Energy efficiency - insulation values, glazing U-values, star ratings.
- Accessibility - door widths, ramp gradients, bathroom clearances.
- Light and ventilation - sill heights, safety glazing, ventilation areas.
- Waterproofing - wet-area membranes, termination heights, flashing.
Crucially, the regulation is not hard-coded. You can upload the code or standard you need to check against, including your own internal QA guidelines, and the AI checks against that document.
What does an NCC 2019 vs NCC 2025 comparison look like?
Codes change, and the gap between versions is where projects get caught out. Here is a simplified view of the kind of comparison an audit surfaces when a project drawn to the older code is checked against the current one:
| Part | 2019 | 2025 | Change |
|---|---|---|---|
| H1 Structure | Pass | Pass | No change |
| H2 Condensation | Partial | Pass | Class 4 membrane now specified |
| H6 Energy Efficiency | Pass | Fail | 7-star NatHERS now required |
| H8 Livable Housing | N/A | Fail | New Part, multiple items non-compliant |
The value is not the single word "fail". It is knowing exactly which Part, which requirement, and which drawing triggered it, in minutes rather than days.
Why do citations matter more than answers?
An answer you cannot verify is a liability, not a tool. Every finding UptoCode produces is cited: it points to the specific clause in the regulation and the specific page or element in your drawing or model. You can trace any result back to its source and stand behind it.
A compliance report is only useful if you can defend every line of it. Citations turn an AI answer into evidence.
Which file types can you use today?
UptoCode reads PDF drawing sets and IFC BIM models today. Native Revit (RVT) support is on the roadmap for Q3 2026 and AutoCAD (DWG) for Q4 2026, so you can keep working in the formats you already use.
How do you get started?
You can check your first project for free. The free plan includes 65 credits and full platform access with no credit card required. Upload a drawing set, ask a question in plain English, or run a full audit and read the cited report.
See pricing, or create a free account and upload your first set.