You can work out how to calculate the number of car spaces required by Table 1 in Clause 52.06-5. You can view examples of calculating car parking requirements using Table 1 below –
Betting Agency: for example, if an applicant proposes a betting agency in an 800 square metre building located in a business zone, and no other provision lists a parking requirement for the use, the calculation to establish the car parking requirement is: 4 (Column A rate) x 8 (measure in 100 sq m units) = 32 spaces If the betting agency can meet the on-site car parking requirement of 32 spaces, no planning permit is required for car parking. However, plans may be required in accordance with Clause 52.06-7
Extension of a Dwelling: additional parking only needs to be provided for an extension to a dwelling if the number of bedrooms increases from one or two bedrooms to three or more bedrooms. An increase in the floor area that does not involve an increase in the number of bedrooms from one or two bedrooms to three or more bedrooms, for example a new lounge room or an increase from three bedrooms to four bedrooms, does not require additional car parking.
Extension of a Warehouse: additional parking for a warehouse extension is to be calculated at the rate of 1.5 spaces (1 space if the Column B rates apply) to each 100 sq m of net floor area. The 2 space minimum only applies to a new premises and does not apply to an extension of an existing premises.
Extension of a Restaurant: if the Column A rates apply and an application seeks to increase the floor area of a restaurant but not to increase the number of patrons, then no additional car parking spaces are required. The Column A rate applies to an increase in patrons permitted only. An application to increase the number of patrons, but not to increase the floor area will require additional car parking at the rate of 0.4 spaces to each patron permitted.
Medical centre or veterinary centre: for these uses car parking spaces rates are measured to each person providing health services or animal health services. As a general rule, it is possible to make an appointment with a person providing health services or animal health services. This includes a doctor, dietician, dentist, physiotherapist, veterinarian, animal groomer, radiologist or a nurse providing independent services to the public (such as health checks). It does not include assistants, including nurses who assist medical professionals, dental nurses or administrative staff.
For full details view this document: Using the Car Parking Provisions
Source Using the Car Parking Provisions by the State of Victoria