Do I meet the conditions of capability (istita'ah) to perform the rituals of Hajj, knowing that I am a government employee with a salary and allowances of 12,500 Qatari Riyals, and I have a monthly installment to an Islamic bank of 4,884 Qatari Riyals, and I am in the process of building a house, am not married, and reside in Qatar?

It is not possible to rule that Hajj is obligatory based solely on what has been mentioned. Financial capability for Hajj means having enough [money] after settling debts and legitimate expenses, and essential needs such as housing. Owning a home is not a prerequisite; rather, the ability to rent one is sufficient. Marriage takes precedence over Hajj for those who fear hardship or fornication by abstaining from marriage. Hajj is not obligatory if the financial means are insufficient to combine settling immediate and deferred debts with performing Hajj, or to combine marriage with Hajj. The intention to build a home is not an excuse to forgo Hajj if the person is capable of renting and has enough [money] for both that and Hajj.