Hi there, I have inherited a property abroad (Zimbabwe)

Hello,
Most assets are liable to Capital Gains Tax when you sell or dispose of them. These include shares, property, business assets and personal possessions - whether they're in the UK or overseas.
You inherited it after 31 March 1982 - you use its market value on the date of death of the person who left it to you for the cost. Your gain would be the difference in cost (less any fees or commission for professional advice or services, for example, Capital Gains Tax valuations, solicitors' and estate agent or advertising fees) and sell price. That is the amount you will pay tax on not the total of the sale.
The basic rate band for 2013-14 is £32,010. So that is applied first. You only pay Capital Gains Tax if your overall gains for the tax year (after deducting any losses and applying any reliefs) are above the 'Annual Exempt Amount'. This amount would be £10,900. You can use your Annual Exempt Amount against the gains charged at the highest rates to minimise the tax you owe.
Example:
The basic rate band is £32,010. you have not used any of this amount against your income(because you stated you had no income) - so you would have £32,010 remaining.
If your gain were 50,000 , you have enough of the basic rate band remaining to cover his gains, so they are all to be taxed at 18%. You now deduct your tax-free allowance of £10,900 and pays Capital Gains Tax at 18% on £7090.
I hope this information is helpful.