Recently you had a party at your house. There was a lot of noise late at night and you disturbed your next door neighbor. In your letter :
– explain the reasons of the noise
– describe what action you will take to prevent it from happening again
Dear Mr. and Mrs. Smith
I am writing to sincerely apologize for recent noise which was late at night from the 11th to 12th of April.
The fact is that it was my birthday. I had many friends and relatives at home this night. Some of us danced and sang, the others discussed different political and ecological ideas and, of course, almost of us were drunk. Therefore, we gave a lot of noise and caused the troubles for you.
I am sorry that I am unable to excuse at once after my birthday because I was out of my house. But better late than never and, therefore, I deeply regret that I brought so many disturbs for you. I am sure you heard our noise and, probably, you could not to sleep long time this night.
Therefore, I am promise you to prevent the similar situations in future. When I want to take a party I will make it in the other place. Honestly, I am very appreciating the warm friendship and kind neighborhood with you for many years and I do not want to break our relationship due to some party.
I hope that you will accept my apologies.