There is nothing wrong with calling a baby girl Iram Fatima
Question

                I would like to know can we opt the name"IRAM" for my brothers daughter. And also we want to know the exact meaning of the name & how its spell.

My brother is thinking of the following name for his daughter "Iram Fatima".

Request you to help us .
Praise be to Allah.
      If the name Iram Fatima is commonly used among people who 
      speak your language and people from your country, and it does not carry 
      any meaning this is contrary to Islam or its etiquette, then there is 
      nothing wrong with using this name, because there is no condition 
      stipulated in sharee‘ah that the name should be mentioned in the Qur’aan 
      or Sunnah, or that it should be an Arabic name, and there is nothing in 
      sharee‘ah to indicate that it is preferred for non-Arab nations to use 
      Arabic names. Rather one should avoid using names that are exclusively 
      used by followers of other religions and that are usually used by the 
      followers of other religions, such as George, Peter, John, Matthew and so 
      on. It is not permissible for the Muslims to use such names because that 
      is imitating something that is exclusively theirs.

    Quoted from Ahkaam Ahl al-Dhimmah by Ibn al-Qayyim, 
    3/251. 

    But if a non-Arabic name has a good meaning, there is nothing 
    wrong with using it and giving it to one’s child. The Messengers and 
    Prophets (blessings and peace of Allah be upon them) had good names and gave 
    good names to their children that were based on their customs and 
    traditions, and they were not Arabic names. Such names include Isra’eel 
    (Israel), Ishaaq (Isaac), Moosa (Moses) and Haroon (Aaron). 

    Imam al-Mawardi (may Allah have mercy on him) mentioned some 
    matters that are mustahabb with regard to choosing names. Among other things 
    he said:

    (The name) should have a good meaning and be appropriate to 
    the situation of the person to whom it is given; it should be a name that is 
    usual among the people of his class, religion and standing. End quote. 

    Naseehat al-Mulook, p. 167 

    Because this word, Iram, is not used in Arabic we looked for 
    it in other languages and – from looking on some websites – it became clear 
    to us that the name Iram is used for females in some Muslim countries and 
    its meaning  in their language is: a garden in Paradise. 

    If that is in fact what it means in your language, then there 
    is nothing wrong with using this name; in fact this is a good meaning, but 
    we did not understand why it should be added to the name Fatima, because 
    Faatimah was not singled out for Paradise to the exclusion of other women. 
    So to be on the safe side it is better to choose just one of the two names, 
    either Fatima or Iram, if that is customary in your country. 

    And Allah knows best.