WhyStepsPromptsToolsConceptsLimitsRelated
Feasibility2/4 AI-assisted stepsBeginner

Analysis of Regulatory Constraints of the Site

Analysis of constraints in the Local Urban Plan (PLU)

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Without AI

  • Retrieve the documents30 min
  • Go through 150 pages3 h
  • Write the summary1 h

4 h 30

With AI

  • Same collection, list of documents20 min
  • Sourced rules table15 min
  • Structured draft to review25 min

1 h

Why this use case

Sur une faisabilité, la lecture réglementaire est le passage obligé le moins gratifiant. Tu ouvres le règlement, tu cherches ta zone, tu recoupes les hauteurs, les reculs, l'emprise, le stationnement. Tu recommences sur les annexes, les servitudes, les OAP. Une journée passe, et rien de tout ça n'est du dessin.

C'est exactement le type de tâche où l'IA est bonne : lire beaucoup, extraire, ranger. Elle ne décide pas à ta place et elle se trompe sur les cas limites — mais elle te met en une heure devant un tableau de contraintes que tu n'as plus qu'à vérifier, article en main.

Process steps

1

Collect location and zoning documents

Collecte · 20 min

Written regulation, zoning plan, list of easements, sector OAP. Get the official PDFs from the Géoportail de l'urbanisme, never a copy sitting in a client folder.

Faisabilités

2

Extract the relevant PLU constraints

AI-assistedExtraction · 15 min

You give the regulation to the chatbot and ask for the articles of your zone, with citation and page number. A constraint without a reference doesn't exist.

ClaudeDocument information extractionImage analysis

3

Classify and structure the constraints

AI-assistedStructuration · 10 min

A table: constraint, value, source article, impact on the project. This is where you spot the contradictions and gaps.

ClaudeBase de connaissance IA

4

Generate the constraints summary report

Livrable · 25 min

One to two pages: what the site allows, what blocks, what still needs checking at the town hall. You review, correct, sign.

Base de connaissance IA

Prompts

Tools used

Faisabilités

Step 1

Step 1 · Collection

Key takeaway : Check the date of the PLU's latest revision before starting the analysis.

Claude

Steps 2 and 3

Steps 2 and 3 · Extraction, structuring

Key takeaway : One conversation per municipality. Mixing two PLUs in the same thread is invisible confusion.

Base de connaissance IA

Steps 3 and 4

Steps 3 and 4 · Structuring, report

Key takeaway : This is where your practice builds capital. Every project enriches the base for the next one.

Concepts to understand

Limitations

1

A constraint without a reference article is not a constraint

Require the article number and page. If the AI can't source it, the rule was probably invented or inferred.

2

Cross-references between documents don't come through well

Public utility easements, OAP, PPRI, ABF opinion: these are other documents. If you didn't provide them, they aren't in the analysis — and the AI won't tell you.

3

A scanned PLU gives poor results

On a scanned document, reading tables and numeric values becomes unreliable. Look for the text version, or process the document in small extracts.

4

It doesn't replace the meeting at the town hall

The reviewing officer has their own reading of the regulation, and it's authoritative. The report helps you arrive prepared, not to decide alone.

Related use cases

Feasibility

Site and context analysis

Quickly understand a site's strengths, weaknesses and urban context — maps, neighborhood info, comparable project references — to kick off a feasibility study or early design.