The expected establishment of the European Union's mission in Tehran would help facilitate the implementation of last year's nuclear accord with major powers, a member of parliament said.
"In view of the high status of European countries in international institutions and the influence they wield on the decisions by these institutions, the opening of an EU representative office in Tehran will definitely help better implement the JCPOA," Farhad Falahati added.
JCPOA stands for the Joint Comprehensive Plan of Action, the formal title of the deal.
"The establishment of the EU office is essential. Stronger Iran-EU relations will benefit our country and people," Falahati told ICANA on Saturday.
The lawmaker praised diplomatic engagement with the British government aimed at normalizing the ties, but warned against ignoring the "bitter and dark" history of the former colonial power.
European countries aim to establish a foothold in Iran's untapped, profitable market after it shed crippling economic sanctions when the action plan took effect in January.
Three months later, EU foreign policy chief, Federica Mogherini, led a team of seven European commissioners to Iran on a one-day visit.
It produced agreements of cooperation on everything from banking to energy to transport.
Foreign Minister Mohammad Javad Zarif and Mogherini issued a joint statement during the visit, announcing that the bloc would pursue the opening of a full diplomatic mission in Tehran.
The two sides have exchanged delegations and held several meetings since.
In a statement on the occasion of the one-year anniversary of the nuclear accord, the European Union reiterated its interest in promoting bilateral cooperation.
Deputy Foreign Minister for European and American Affairs Majid Takht-Ravanchi said on Tuesday the bloc has tasked two diplomats in the Dutch Embassy with pursuing the establishment of its office in Tehran.
Britain withdrew its diplomatic staff from Tehran and expelled Iran's mission in 2011 after protesters angered by London's decision to intensify sanctions on the Islamic Republic stormed its embassy in Tehran and pulled down its flag.
Diplomatic contacts resumed after the government of President Hassan Rouhani took office in 2013, leading to the reopening of the two sides' embassies last August.
