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Challenge

Build a Multi-Tenant Lease Fit-Out Demolition Tracker

Assess interior commercial tenant improvement plans against base building IFC models using ifcedit and ifcdiff principles. Track architectural components scheduled for salvage, alteration, or demolition.

EngineeringHosted by Vera
Challenge brief

What you are building

The core problem, expected build, and operating context for this challenge.

Assess interior commercial tenant improvement plans against base building IFC models using ifcedit and ifcdiff principles. Track architectural components scheduled for salvage, alteration, or demolition.

Commercial Tenant Improvement Coordinator

Compare base building IFC interior partition walls and doors against tenant fit-out plan.

Categorize elements into retain, modify, salvage, and demolish lifecycle stages.

Calculate total wall surface area and recyclable scrap metal stud weight.

Generate demolition authorization bill of quantities for general contractor review.

Interactive spatial floor plan highlighting elements color-coded by lifecycle state with exportable BOM.

Sample commercial office IFC interior models with tagged tenant partition walls and doors. Starter examples below are synthetic. They are not downloaded records.

IfcOpenShell Applies IfcOpenShell ifcedit mutation functions and ifcdiff comparison approaches to track fit-out revisions.

mastra-ai, pydantic, fastapi. Mastra AI provides deterministic workflow execution for managing demolition step gates and audit trails. Standard reasoning LLM via hosted API to structure lifecycle categorization and material estimation.

Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.

Accurately flags differences between base architectural model and fit-out layout.

Assigns appropriate lifecycle status based on geometry and position matching.

Computes aggregate demolition volume and expected metal framing scrap tonnage.

```json [ { "input": { "base_elements": [ { "guid": "WALL-001", "type": "IfcWallStandardCase", "area_m2": 24, "stud_gauge": "20GA" }, { "guid": "DOOR-001", "type": "IfcDoor", "width_m": 0.9 } ], "fitout_elements": [ { "guid": "WALL-001", "action": "RETAIN" }, { "guid": "DOOR-001", "action": "DEMOLISH" } ] }, "expected_output": { "retained_count": 1, "demolished_count": 1, "salvageable_doors": 1, "demolition_waste_area_m2": 0, "contractor_signoff_required": true } }, { "input": { "base_elements": [ { "guid": "WALL-002", "type": "IfcWallStandardCase", "area_m2": 35, "stud_gauge": "20GA" } ], "fitout_elements": [ { "guid": "WALL-002", "action": "DEMOLISH" } ] }, "expected_output": { "retained_count": 0, "demolished_count": 1, "salvageable_doors": 0, "demolition_waste_area_m2": 35, "contractor_signoff_required": true } } ] ```

Fit-out demolition quantities are preliminary estimates; licensed structural engineers must inspect load-bearing walls. Use mock external writes. Require human review before any real deployment.

Rules

Participation guide

Fit-out demolition quantities are preliminary estimates; licensed structural engineers must inspect load-bearing walls. Use mock external writes and human review.

Delivery guide

How work is evaluated

Evaluation

Accurately flags differences between base architectural model and fit-out layout. Assigns appropriate lifecycle status based on geometry and position matching. Computes aggregate demolition volume and expected metal framing scrap tonnage.

Submission format

Runnable source, pinned dependencies, setup commands, working interface, example outputs, recorded demo, tests, and action logs.

Datasets

Challenge datasets

Public datasets, plus the private datasets you have access to.

Evaluation rubric

How submissions are scored

These dimensions define what the evaluator checks and which criteria separate a passable run from a strong one.

Dimensions
4 scoring checks
Binary
1 pass or fail dimensions
Ordinal
3 scaled dimensions
Dimension 1

Complete workflow

Compare base building IFC interior partition walls and doors against tenant fit-out plan. Categorize elements into retain, modify, salvage, and demolish lifecycle stages. Calculate total wall surface area and recyclable scrap metal stud weight. Generate demolition authorization bill of quantities for general contractor review.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 2

Correctness and evidence

Accurately flags differences between base architectural model and fit-out layout. Assigns appropriate lifecycle status based on geometry and position matching. Computes aggregate demolition volume and expected metal framing scrap tonnage.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 3

Review interface

Interactive spatial floor plan highlighting elements color-coded by lifecycle state with exportable BOM.

Score scale
012
Score 0

Missing or incorrect.

Score 1

Partly complete, with documented gaps.

Score 2

Complete, with reproducible evidence.

Dimension 4

Safe execution

Fit-out demolition quantities are preliminary estimates; licensed structural engineers must inspect load-bearing walls.

Binary check

This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.

Learning goals

What you should walk away with

  • Compare base building IFC interior partition walls and doors against tenant fit-out plan.

  • Categorize elements into retain, modify, salvage, and demolish lifecycle stages.

  • Calculate total wall surface area and recyclable scrap metal stud weight.

  • Generate demolition authorization bill of quantities for general contractor review.

Resources and assets

Reference links and supporting material

Dataset notes

Sample commercial office IFC interior models with tagged tenant partition walls and doors. Supplied starter examples are synthetic, not source extracts.

Challenge setup

Configuration summary for this challenge.

Challenge input

Input details are not configured.

Mastra AI

TypeScript agent framework.

Evaluated output

No output checks are configured.

Evaluation checks
  • Compare base building IFC interior partition walls and doors against tenant fit-out plan. Categorize elemen...
  • Accurately flags differences between base architectural model and fit-out layout. Assigns appropriate lifec...
  • Interactive spatial floor plan highlighting elements color-coded by lifecycle state with exportable BOM.
Configured evaluation evidence
  • 2 public reference cases
Configured runtime
  • 2 configured tools

Summary shows the first task, up to three tools, and up to three evidence items. Open the technical recipe to view all configured items.

View technical recipe

Configured tools

Action Space
  • Mastra AI · Optional
Orchestration
  • Mastra AI · Optional

Evaluation contract

  • Complete workflow · Weight 40
  • Correctness and evidence · Weight 30
  • Review interface · Weight 20
  • Safe execution · Weight 10

Reference cases

  • 2 public reference cases

Workflow tasks

No workflow tasks are configured.

Recipe freeze marker

No recipe freeze time is recorded.

Frequently Asked Questions about Build a Multi-Tenant Lease Fit-Out Demolition Tracker