From a finished 3D model to a dimensioned sheet set, by instruction — and checked against your own standards. In development
The drawing office · where the model becomes a set
Why drafting still eats the week
Once the design is modelled, a practice still spends days turning it into drawings: sheets, views, tags, dimensions, all to the firm’s standard, then checking them by eye before they go to council or the builder. It is skilled time spent on repetition.
Revit Drafting is Inspirotech’s own Revit add-in, working inside Revit as a side panel. It builds the sheet set to your standard, changes it by instruction, checks it against the same standard, and gives the client a set they can ask questions of. It is being built with an Auckland architecture practice; first release is planned for Q1 2027.
What Revit Drafting solves for
Sheet setup done by hand on every project.
Dimensions and tags placed one at a time.
A drawing standard that lives in one senior architect’s head.
Sets checked by eye the night before issue.
Client questions the drawings already answer.
What it does
Seven parts, from the model to the client, inside Revit.
01 · Plan first
It shows the plan before it touches the model.
Setting up a sheet set by hand is a day of repetitive work: sheet numbers and names, title blocks, views, scales, templates — all to a standard that lives in someone’s head.
In Revit Drafting you pick the project type and the practice standard. The agent reads the model and the standard and produces an execution plan: how many sheets, views, tags and dimension strings it will create, and what it already knows it cannot handle automatically.
Nothing changes in the model until someone confirms the plan.
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Smith House — Rev C
Standard v1.3 · Detached house · model read 09:02
Generate plan
Project profile
Project typeDetached house
Sheet set templateResidential v3
Default scale1 : 100
Title blockA1 Metric – Firm
Execution plan
Create sheets14
Views · plans, elevations, sections22
Door, window & room tags118
Dimension strings42
Can’t be done automatically3
Drawing agentM. Chen
Run the full set per our standard.
09:04
Worked for 6s
✓Read model22 views possible
✓Read standard v1.331 rules
✓Check families & templates3 exceptions
Here’s the plan: 14 sheets, 22 views, 118 tags, 42 dimension strings. Three items I already know I can’t do — they’ll be listed for a person.
Nothing changes in the model until you confirm.
Confirm & runCancel
Describe the change in one sentence…
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02 · Sheet set
From a finished model to a dimensioned sheet set in one run.
Once the plan is confirmed, the agent works through the set in order: sheets and title blocks; plans, elevations and sections at the right scales with the right templates; door, window and room tags; then dimensions — grids, exterior walls, openings, levels.
Every step is logged, and the whole run is one transaction. If it isn’t right, it is undone in one step and the model is back exactly as it was.
What the agent could not do — a family with no reference planes, a view with no template — is listed for a person, not skipped silently.
Done. The set is in the Revit sheet browser. Three items need a person — they’re under Issues.
The whole run is one transaction: undo puts the model back exactly as it was.
Open issuesUndo this run
Describe the change in one sentence…
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03 · Instructions
Change the drawings in a sentence.
Most drawing changes are small and repetitive: this plan at 1:50, opening dimensions on these sheets, sill heights off the elevations, rename a sheet.
In the chat tab the architect says what to change and picks the scope — this sheet, all floor plans, the whole set. The agent turns the sentence into a plan, says exactly what will change and what will not, and waits for Run.
If an instruction doesn’t fit the scope — an opening rule on an elevation, say — it says so rather than guessing.
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ScopeCurrent sheet · A-202 Floor Plan L2▾
A-202Floor Plan L21 : 50rule P-3 · opening dimensions
Drawing agentM. Chen
Change Level 2 plan to 1:50 and add opening dimensions.
10:20
Worked for 3s
Set A-202 to 1:50, and add opening dimensions per rule P-3 — exterior openings, skipping anything under 300 — about 11 strings.
Sheets outside the scope are untouched.
Run.
10:21
✓A-202 → 1:50Done
✓Opening dimensions · P-311 strings
Done.
Describe the change in one sentence…
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04 · Standards
Your drawing standard, written down once and used everywhere.
Every practice has a drawing standard. Usually it is a PDF nobody opens, and a senior architect who corrects the same things on every set.
Revit Drafting keeps the standard as rules — sheet set, views and scales, dimensions, tags, naming — per project type. Each rule is written as a sentence, its parameters kept in sync, and a review check generated from it. Every change is versioned.
The same rules drive production and review. The agent can also infer draft rules from sets you have already issued; nothing becomes a rule until someone confirms it.
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Dimension rules
Detached house · v1.3 · one rule set drives production and review
Trial run
AI inferred 2 draft rules from the Harper St issued set — awaiting confirmationShow drafts
ID
Rule
Applies to
Status
P-1
Outer string: overall grid dimensions
All plans
Confirmed
P-2
Second string: exterior wall faces, broken at corners
All plans
Confirmed
P-3
Third string: exterior openings edge to edge; skip under 300
1:50 plans
Confirmed
E-1
Elevations, left: floor-to-floor and overall height
Elevations
Confirmed
P-5
Draft: stair flights and landing widths
1:50 plans
Confirm
Drawing agentM. Chen
On opening dimensions, skip vents under 300 instead of 200.
14:02
Worked for 4s
✓Update P-3 · min 300 (was 200)Done
✓Regenerate the P-3 checkDone
✓Save as v1.3Done
✓Trial run · Harper St sample91% coverage
Rule P-3 now skips openings under 300 mm, and its review check changed with it. Applies from the next run; issued sets aren’t touched.
Show the comparisonUndo change
Describe the change in one sentence…
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05 · Review
Every set is checked against your standard before anyone prints.
Checking a set by eye is slow, and what gets missed depends on who is checking and how late it is.
After every run the set is checked twice: against the rules, and by an AI visual review of the exported sheets. What it finds is a list you can act on — not dimensioned, overlapping tags, a title that doesn’t match the view — each with a suggested fix and a Locate button that outlines the element.
Ask why something happened and the agent explains it: which rule, which family, what to change.
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Automatic check · after run 09:11 3
Not dim.W07 window family has no left/right reference planesSwap to Firm_Window_Awning, or dimension by handLocate
OverlapA-202 door tag D05 overlaps dimension textMove the leader leftLocate
TitleA-301 “North Elevation” doesn’t match the viewRename to East ElevationFix
A-202Floor Plan L21 : 100W07 outlined
Drawing agentM. Chen
Why isn’t W07 dimensioned?
09:15
Worked for 2s
W07 uses the family Window_Awning_Custom, which has no left/right reference planes, so the dimension engine had nothing to measure to and skipped it.
Two options: swap it to the practice standard Firm_Window_Awning and re-run dimensions (recommended), or dimension that one by hand.
rule P-3issue #1
Swap family & re-runI’ll do it by hand
Describe the change in one sentence…
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06 · Client portal
Clients read the drawings, and ask them questions.
After issue, clients and builders ring with questions the drawings already answer — and sometimes ones they don’t.
Each run can publish the set to a client portal: every sheet, plus an assistant that answers only from this set and cites the sheet each answer comes from. Anything that would change the design goes to the architect, not answered.
Every question comes back to the practice. A question asked three times usually means the drawing isn’t clear at that spot, and becomes a new review rule.
drawings.yourpractice.co.nz/smith-house/rev-c
Smith House
Construction set · Rev C · 24 sheets
Download PDF
A-100Site
A-202Plan L2
A-301East elev.
A-401Section 1
A-501Schedules
… 19 more
A-401Section 11 : 50
Drawing questionsfrom this set only
What’s the ceiling height in the Level 2 bedrooms?
2,400 mm clear, finished floor to finished ceiling — highlighted on the sheet.
A-401 Section 1Room schedule · BED 1 / BED 2
Can that be changed to 2,700?
That’s a design change, so it needs the architect. I’ve passed it on — you’ll usually hear back within one working day.
Forwarded · #Q-015
Ask a question about this drawing set…
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07 · Built to be trusted
AI where judgement helps. Plain code where the model is touched.
A drawing tool that is clever but unpredictable is worse than none.
Revit Drafting uses AI at the two ends: understanding what you asked for, and reviewing what came out. Everything that writes to the model in between is ordinary, deterministic code — the same model and the same standard always produce the same drawings.
The ceiling is the model itself: families need reference planes, categories need to be right, view templates need to exist. Part of the setup is getting the model there.
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How it’s built
AI at the two ends · deterministic in the middle
Run log
PeopleInterfaceThe Revit side panel: Agent run, Chat, IssuesYou
AIAgentTurns a sentence into a plan; explains exceptions; reviews exported sheetsAI
StandardDrawing specYour rules for sheets, views, dimensions, tags and naming — versionedYours
ExecutionRevit toolsCreate sheets, place views, dimension, tag, export — same input, same drawingsDeterministic
ModelRevit modelA finished 3D model; every 2D view is cut from itYours
