There are numerous estate agencies in Vienna. You can try the following:
An Austrian lawyer will normally be engaged in matters relating to buying and
selling of property in the country. Your total fees should
be around 8-9% of the buying price and will include property transfer
tax of 3.5% and notary fees around 3-4%. The ownership registration should be
1% with stamp duty 0.5-1%, the land registry fees averaging a payment of around
£300 / $450.
There will be a Property Tax of 0.4-0.9% of the properties assessed value and should be lower than the market sale value. Wealth tax of 1% of your net worth irrespective of your resident status is charged for Austrian property owners.
Capital gains made by residents are taxed as ordinary income at 34%. Your principal home will be exempt unless you sell within five years. All property is exempt after 10 years.
For more information on buying property in Austria, click here.