All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
Taking interest-based loans is forbidden except at the time of dire necessity such as if a person faces a situation of death-threat due to hunger and cannot feed himself but with interest. Or that he is in a great trouble and cannot avoid it, like the one who does not have clothes to cover his body or does not have a house to live in even by paying rent, then, in such cases, one can use interest as mentioned in the verse: (which means) {He has explained in detail to you what He has forbidden you, excepting that to which you are compelled}[Quran 6:119].
Paying debts is not a valid excuse in Islam to deal with interest since Allaah orders a creditor to grant a respite to the indebted person who cannot pay his debt until he becomes capable for that. Furthermore, Allaah encourages the creditor to give up his rights as charity to the indebted person who can not pay back his loan. Allaah Says (what means): {And if someone is in hardship, then [let there be] postponement until [a time of] ease. But if you give [from your right as] charity, then it is better for you, if you only knew.}[Quran 2:180].
Therefore, if you cannot pay your loan to your relatives and friends, then they have to be patient and wait till you become able to repay their loans . However, taking a loan with Riba (interest and/or usury) is forbidden and owning a house is not an Islamicly valid excuse that justifies dealing with Riba.
Besides, you should know that borrowing with Riba is a very serious sin, it is waging war against Allaah as Allaah Says (what means): {O you who have believed, fear Allaah and give up what remains [due to you] of interest, if you should be believers. And if you do not, then be informed of a war [against you] from Allaah and His Messenger.}[Quran 2:278-279]
Furthermore, Jaabir narrated that the Prophet said: "Allaah has cursed the one who consumes Ribaa (usury or interest), the one who gives it to others, the one who writes it down and the one who witnesses it". He said: "All of them are equal in sin." [Muslim]
Hence, the matter is so serious and a sincere Muslim protects himself from being involved in such a grave major sin. So, you have to fear Allaah.
Also, we advise you to recite the supplications that are said to get free from debts. It is reported in a sound Hadeeth that 'A slave who had settled the terms of his freedom with his master in return of paying him an amount of money came to 'Ali and said: "I am not able to discharge my installments according to the agreement, and I ask you to help me. Then, 'Ali said to him: "Shall I teach you a supplication which the Prophet taught me whereby Allaah will facilitate the repayment of your debt even if it was as huge as a mountain? Then he said: Allaahumm Akfinee bihalaalika 'An haraamik, wa-aghninee bifadhlika 'Amman siwaak. (O Allaah, make what is lawful enough for me, as opposed to what is unlawful, and spare me by Your Grace the need of others).
Allaah Know best.