Compliance & Regulation

Copy page

Legislative Zones API

Define geographic zones with rent control rules, legal requirements, and tenant protections. Every property in France belongs to a legislative zone that determines maximum rents and regulatory obligations.

Quick Example

Code
 
curl -X POST https://api.faireplace.com/api/legislative-zones \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Paris Centre",
    "zone_type": "TenseZone",
    "postal_codes": ["75001", "75002", "75003", "75004"],
    "rent_control": {
      "is_active": true,
      "reference_rent_per_m2": 25.50,
      "increased_rent_per_m2": 28.00,
      "calculation_method": "SurfaceWeighted"
    }
  }'

Common Workflows

Set up rent control for Paris

1. POST /api/legislative-zones — Create zone with TenseZone type and rent limits
2. POST /api/legislative-zones/{id}/postal-codes — Add postal codes
3. POST /api/places — Create properties with this legislative_zone_id
4. Leases in this zone are automatically validated against rent caps

Update annual rent references

1. PUT /api/legislative-zones/{id}/rent-control — Update reference_rent_per_m2 and increased_rent_per_m2
2. New values apply to future leases and renewals

---

Overview

Legislative zones define geographic areas with specific rental regulations including:

• Rent Control: Maximum rent caps and calculation methods
• Legal Requirements: Mandatory lease terms and conditions
• Tax Zones: Property tax and rental income tax considerations
• Urban Planning: Development and renovation restrictions
• Tenant Protection: Special tenant rights and protections

Authentication

Requires PropertiesRead, PropertiesWrite, or PropertiesDelete permissions.

Base URL

All legislative zone endpoints: /api/legislative-zones

---

Core Operations

List Legislative Zones

GET /api/legislative-zones

Response:

Code
 
[
  {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "name": "Paris Zone 1",
    "zone_type": "TenseZone",
    "description": "Central Paris with strict rent control",
    "postal_codes": ["75001", "75002", "75003", "75004"],
    "rent_control": {
      "is_active": true,
      "reference_rent_per_m2": 25.50,
      "increased_rent_per_m2": 28.00,
      "calculation_method": "SurfaceWeighted"
    },
    "legal_requirements": [
      "MandatoryInventory",
      "DepositCap2Months",
      "NoticeRequired3Months"
    ],
    "created_at": "2024-01-15T10:30:00Z",
    "updated_at": "2024-01-15T10:30:00Z"
  }
]

Create Legislative Zone

POST /api/legislative-zones

Request:

Code
 
{
  "name": "Lyon Zone A",
  "zone_type": "RegulatedZone",
  "description": "Lyon city center with moderate regulations",
  "postal_codes": ["69001", "69002"],
  "rent_control": {
    "is_active": true,
    "reference_rent_per_m2": 18.50,
    "increased_rent_per_m2": 20.50,
    "calculation_method": "SurfaceWeighted"
  }
}

Get Legislative Zone

GET /api/legislative-zones/{id}

Update Legislative Zone

PUT /api/legislative-zones/{id}

Delete Legislative Zone

DELETE /api/legislative-zones/{id}

---

Zone Types

TenseZone (Zone Tendue)

• Strictest rent control regulations
• Limited rent increases
• Enhanced tenant protections
• Required in high-demand urban areas

RegulatedZone (Zone Encadrée)

• Moderate rent control
• Standard tenant protections
• Municipal-level regulations

ControlledZone (Zone Maîtrisée)

• Basic rent monitoring
• Standard legal requirements
• Limited special protections

---

Rent Control System

Rent Control Object:

Code
 
{
  "is_active": true,
  "reference_rent_per_m2": 25.50,      // Base rent per square meter
  "increased_rent_per_m2": 28.00,      // Maximum allowed rent per m²
  "calculation_method": "SurfaceWeighted",
  "last_updated": "2024-01-01T00:00:00Z",
  "applicable_from": "2024-01-01T00:00:00Z"
}

Calculation Methods:

• SurfaceWeighted - Based on property surface area
• LocationBased - Based on specific location factors
• MarketIndexed - Tied to market indices

---

Legal Requirements

Common requirements by zone:

• MandatoryInventory - Required entry/exit inventory
• DepositCap2Months - Security deposit limited to 2 months
• NoticeRequired3Months - 3-month notice required for termination
• EnergyDiagnosisMandatory - Energy diagnosis required
• RentReceiptMandatory - Rent receipts must be provided

---

Rent Control Routes

List Rent Controls

GET /api/legislative-zones/rent-controls

Get Rent Control by Zone

GET /api/legislative-zones/{id}/rent-control

Update Rent Control

PUT /api/legislative-zones/{id}/rent-control

Request:

Code
 
{
  "reference_rent_per_m2": 26.00,
  "increased_rent_per_m2": 28.50,
  "applicable_from": "2024-07-01T00:00:00Z"
}

---

Postal Code Management

Add Postal Codes to Zone

POST /api/legislative-zones/{id}/postal-codes

Request:

Code
 
{
  "postal_codes": ["75005", "75006"]
}

Remove Postal Codes from Zone

DELETE /api/legislative-zones/{id}/postal-codes

Request:

Code
 
{
  "postal_codes": ["75006"]
}

---

Error Responses

400 Bad Request

Code
 
{
  "error": "ValidationError",
  "message": "Reference rent cannot be higher than increased rent"
}

409 Conflict

Code
 
{
  "error": "ZoneConflict",
  "message": "Postal code already assigned to another zone"
}

---

Common Use Cases

Zone Setup

1. Create legislative zones based on government regulations
2. Assign postal codes to appropriate zones
3. Configure rent control parameters

Rent Calculation

1. Lookup zone by property postal code
2. Apply rent control limits to lease agreements
3. Validate rent amounts against zone maximums

Compliance Monitoring

1. Check lease compliance with zone requirements
2. Generate compliance reports by zone
3. Track regulatory changes and updates

---

French Legal Context

Zone Tendue (Tense Zone)

• Defined by Decree n°2022-1031
• Cities with housing shortage
• Strict rent control and tenant protections

Encadrement des Loyers

• Municipal rent control system
• Maximum rent per square meter by area
• Applies to new leases and renewals

Legislative Updates

• Zones updated annually by government decree
• Rent control rates adjusted based on market conditions
• Legal requirements evolve with housing legislation

---

Integration Notes

• Place Association: Places must be assigned to legislative zones
• Lease Compliance: Automatic validation of rent amounts
• Legal Updates: System updates when regulations change
• Reporting: Generate zone-based compliance and market reports