Any Du`a for New House?
Question

 
I bought a new house, praise be to Allah. Are there any du`as specifically for protecting a new house? 
Is there any basis in Islam for what some brothers suggest about reading Surat al-Baqarah or playing tapes of the Noble Quran?
Praise be to Allah.Etiquette for moving to a new house
We ask Allah to bless this new house for you and to make it a haven of righteousness, goodness and blessing. 
I will tell you what it is prescribed for you to do and say: 

Be grateful for the blessing of Allah , for gratitude is one of the noblest of attitudes. 

Ibn al-Qayyim said in Madarij al-Salikin (2/242): 
“Faith is of two halves: half is gratitude and half is patience.”
If a person is grateful to his Lord, He will preserve His blessing to him and complete it, and increase it and others. 
Allah says (interpretation of the meaning): 
“And (remember) when your Lord proclaimed: If you give thanks (by accepting Faith and worshipping none but Allah), I will give you more (of My Blessings); but if you are thankless (i.e. disbelievers), verily, My punishment is indeed severe.” [Ibrahim 14:7]

Make food and invite people to come and eat, for that is a way of showing gratitude to Allah.  

It says in al-Mawsu’ah al-Fiqhiyyah (8/206): 
“Holding a feast after acquiring property is mustahabb, like all kinds of feasts that are given on happy occasions or so as to ward off evil. It is called wakirah . It is not as important as the wedding feast, and some of the Shafi’is narrated two opinions as to whether it is obligatory, because after mentioning feasts, al-Shafi`i said: that includes the wakirah … and I do not grant a concession allowing one to neglect it.”

Ibn al-Qayyim (may Allah have mercy on him) said in al-Wabil al-Sayyib (155-156): 

Allah, may He be glorified and exalted, said in the story of the two men (interpretation of the meaning): 
“It was better for you to say, when you entered your garden: ‘That which Allah wills (will come to pass)! There is no power but with Allah!’ If you see me less than you in wealth, and children.” [al-Kahf 18:39]
The one who enters his garden or house or sees something that he likes in his wealth or his family should hasten to say these words, and if he does, no harm will befall the thing that he admired. 
Anas (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings of Allah be upon him) said: “When Allah blesses a person in his family, wealth or children and he says ‘Ma sha Allah la quwwata illa Billah (that which Allah wills (will come to pass)! There is no power but with Allah), he will not see any harm come to them before death.” (Narrated by al-Tabarani in al-Awsat (6/126); classed as sahih by Ibn al-Qayyim in Shifa al-‘Alil (1/182); classed as da’if by al-Albani in al-Silsilah al-Da’ifah (2012)
When the Prophet (peace and blessings of Allah be upon him) saw something that he liked, he would say: “Al-hamdu Lillah illadhi bi ni’matihi tatimmu’l-salihat (Praise be to Allah by Whose grace good deeds are completed).” (Narrated by Ibn Majah (3803). Al-Nawawi said: Its isnad is jayyid. Al-Adhkar (399).”

It was narrated from Jabir ibn ‘Abd-Allah (may Allah be pleased with him) that he heard the Prophet (peace and blessings of Allah be upon him) say: “When a man enters his house, and mentions Allah, may He be glorified and exalted, when he enters and when he eats, the shaytan says: ‘You have no place to stay and no dinner.’ But if he enters and does not mention Allah when he enters, the shaytan says, ‘You have found a place to stay.’ And if he does not mention Allah when he eats, he says: ‘You have found a place to stay and dinner.’” (Narrated by Muslim (2018) 

This dhikr is not only for a new house, rather it includes all houses and all times of entering. So start your life in your new house with remembrance of Allah, may He be glorified. 
Among the ways in which you may seek protection for your new house from the evil eye and destructive envy is to say: “U’idhuka bi kalimat-Allah il-tammah min kulli shaytanin wa hammah wa min kulli ‘aynin lammah (I seek refuge for you in the perfect words of Allah from every devil and poisonous reptile, and from every envious evil eye).” (Narrated by al-Bukhari (3371) 

The Sunnah encourages reading Surat al-Baqarah , especially in one’s home. 

Abu Hurayrah (may Allah be pleased with him) narrated that the Messenger of Allah (peace and blessings of Allah be upon him) said: “Do not make your houses into graves, for the Shaytan flees from a house in which Surat al-Baqarah is recited.” (Narrated by Muslim (780) 
Shaykh Ibn Baz (may Allah have mercy on him) said in Majmu’ al-Fatawa (24/413): 
“It seems – and Allah knows best – that by means of the reading of all of Surat al-Baqarah, either on the radio or by the owner of the house, that which was mentioned by the Prophet (peace and blessings of Allah be upon him) may be achieved, namely shaytan fleeing from that house.”
However, we did not find any specific dhikr or du`a to be said when entering a new house. 
And Allah knows best.