The value of the deposit will be equal to one month's rent. When the tenancy starts, you will be asked to pay the balance of the deposit. This payment must be in cleared funds to enable the tenancy to commence. It's at the Landlords discretion if pets are allowed at the property.
If you are a student, are unemployed or on a low income, you may need a guarantor. The guarantor will be asked to read your tenancy agreement and sign a guarantor agreement before the tenancy starts.