{
  "property_address": "555 Main Street, Toronto, ON",
  "property": {
    "property_type": "commercial",
    "property_value": 1800000.0,
    "rental_income_monthly": 12000.0,
    "distance_to_construction_m": 30.0,
    "number_of_units": 3,
    "business_type": "retail_plaza",
    "annual_revenue": 2400000.0,
    "background_noise_dba": 58.0
  },
  "construction": {
    "duration_months": 24.0,
    "equipment": [
      {
        "equipment_type": "pile_driver",
        "dba_at_15m": 108.0,
        "hours_per_day": 5.0,
        "days_per_week": 5
      },
      {
        "equipment_type": "excavator",
        "dba_at_15m": 86.0,
        "hours_per_day": 8.0,
        "days_per_week": 6
      },
      {
        "equipment_type": "jackhammer",
        "dba_at_15m": 96.0,
        "hours_per_day": 3.0,
        "days_per_week": 5
      },
      {
        "equipment_type": "concrete_saw",
        "dba_at_15m": 98.0,
        "hours_per_day": 4.0,
        "days_per_week": 5
      }
    ],
    "dust_impact_zone": "high",
    "vibration_ppv_mms": 8.5,
    "traffic_reduction_pct": 0.45,
    "construction_hours_per_day": 10,
    "night_work": false
  },
  "visual_impact": {
    "description": "Permanent transit infrastructure reducing street visibility",
    "value_reduction_pct": 0.05
  },
  "market_parameters": {
    "sales_conversion_rate": 0.03,
    "average_transaction_value": 75.0,
    "gross_margin_pct": 0.42,
    "capitalization_rate": 0.075
  }
}