Calculateur de Ratio de Stationnement — Formule

Parking Ratio Analysis

The parking ratio measures the number of parking spaces available per 1,000 square feet of building area. It is a critical factor in commercial real estate that affects property value and tenant satisfaction.

Formula

Parking Ratio = Total Parking Spaces / (Building Sq Ft / 1,000)

Typical Requirements by Property Type

  • Office (suburban): 3.5-5.0 per 1,000 sq ft
  • Office (urban): 1.0-2.5 per 1,000 sq ft
  • Retail: 4.0-6.0 per 1,000 sq ft
  • Medical office: 5.0-7.0 per 1,000 sq ft
  • Restaurant: 10-15 per 1,000 sq ft
  • Industrial: 1.0-2.0 per 1,000 sq ft

    • Parking Impacts on Value

  • Inadequate parking limits the tenant pool and reduces rent potential
  • Excess parking can be monetized through paid parking or shared use agreements
  • Structured parking (garages) costs $15,000-$30,000+ per space to build
  • Surface parking costs $3,000-$5,000 per space

    • Exemple Résolu

    150 parking spaces for a 40,000 sq ft office building with 200 employees, $75/month per space, and a code requirement of 4 spaces per 1,000 sq ft.

    1. Parking ratio: 150 / (40,000 / 1,000) = 3.75 per 1,000 sq ft
    2. Spaces required: 40,000 / 1,000 x 4 = 160
    3. Surplus/deficit: 150 - 160 = -10 (deficit)
    4. Spaces per employee: 150 / 200 = 0.75
    5. Annual parking cost: 150 x $75 x 12 = $135,000
    6. Parking cost per sq ft: $135,000 / 40,000 = $3.38