Transferring ownership rights can be also done in any notary office. In this case, the sale-purchase agreement has to notarized and additional fees should be paid for the notary services. After the sale-purchase agreement is signed by the contracting parties and it is notarized, a notary office can itself perform state registration of ownership rights. As a result, you will obtain the certificate of ownership from the notary office. However, the duration of state registration may be longer than state registration at the Cadastre Committee.
You can find information about notary offices in Armenia by following this link - NOTARY OFFICES