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Build Multimodal Construction Permit & Zoning Inspector with Google ADK

Complex urban redevelopments—such as London's King's Cross—require navigating thousands of pages of site plans, building regulation documents, and heritage preservation blueprints. Developers will use Google Agent Development Kit (ADK) to build a multimodal construction inspection agent. The agent leverages Gemini's multimodal capabilities to analyze engineering blueprints, site photographs, and local zoning bylaws simultaneously. It identifies missing safety permits, flags non-compliant structural modifications on historic structures, and calculates construction schedule risk.

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What you are building

Construct a multimodal permitting and zoning compliance inspection agent using Google ADK and Gemini.

How work is evaluated

Evaluation

Evaluates detection precision of zoning code non-compliance and missing safety permits from multimodal project packages.

Datasets

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

How submissions are scored

Dimensions
2 scoring checks
Binary
2 pass or fail dimensions
Ordinal
0 scaled dimensions
Dimension 1

Compliance Determination Test

Ensures correct flagging of non-compliant height threshold

Binary check

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

Dimension 2

Permit Identification Accuracy

Recall of required heritage permits • target: 0.95 • range: 0-1

Binary check

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

Learning goals

  • Utilize Google ADK to process multimodal inputs (site images + zoning text docs)

  • Implement document visual processing pipelines using Gemini 1.5 Pro multimodal tools

  • Detect missing architectural permits and safety code compliance violations in site plans

  • Generate automated compliance verification audit reports for local planning authorities

Resources

Dataset notes

Multimodal dataset of 40 urban redevelopment site plans, permit applications, and zoning requirement docs.

Challenge setup

Evaluates detection precision of zoning code non-compliance and missing safety permits from multimodal project packages.

Challenge input

JSON with site_name, proposed_height_m, max_allowed_height_m, structural_changes_description, historic_designation

Google ADK

Required framework for Gemini agent development.

Evaluated output

JSON with compliance_passed (boolean), identified_deficiencies, required_permits

Evaluation checks
  • Ensures correct flagging of non-compliant height threshold
  • Recall of required heritage permits • target: 0.95 • range: 0-1
Configured evaluation evidence
  • Benchmark: UrbanPermitBench
  • Permit Identification Accuracy target: 0.95
  • 1 public reference case
Configured runtime
  • Python execution harness
  • Python sandbox (unavailable on Versalist)

Shows the first task, up to three tools, and up to three evidence items.

View technical recipe

Configured tools

Action Space
  • Google · Required
  • Google ADK · Optional
  • Google Gemini · Optional

Evaluation contract

  • Compliance Determination Test · Weight 1
  • Permit Identification Accuracy · Weight 1

Metrics

  • Permit Identification Accuracy · Target 0.95

Benchmarks

  • UrbanPermitBench
  • general

Reference cases

  • 1 public reference case

Workflow tasks

  1. Task 1

    Input: JSON with site_name, proposed_height_m, max_allowed_height_m, structural_changes_description, historic_designation

    Output: JSON with compliance_passed (boolean), identified_deficiencies, required_permits

    Execution harness: Python

Evaluation tools

  • Google ADK · Agent Framework

Recipe freeze marker

No recipe freeze time is recorded.

Frequently Asked Questions about Build Multimodal Construction Permit & Zoning Inspector with Google ADK