Consider yourself blessed if you as the Owner have no deficiences with the new house.
Sometimes the Builder will leave behind a Deficiency List (or Punch List) of items still needing completion, which will require his/her crew to return to finish. If so, do follow-up to ensure the work gets done.
If available, ask the Buildier for the house drawings and specifications, including the site survey. But remember, the Builder is under no obligation to provide the Owner with this information, as it will be filed in the municipality’s Planning Office. Still, as the Owner, it would be useful to have a copy at home, for reference.
As the Owner, you will have received the New Home Warranty Certificate. Know the anniversary dates as you will have specific performance specifications extending for 12-months, 2 years, 5 years and 10 years. Should a failure happen that is covered by the warranty, then it will be repaired.
Finally, be curious about your new house. If something does not look right, ask the Builder about. In some cases, using an independent property inspector to review the newly built house makes sense as it provides the Owner with information as to what is and is not acceptable in the final product.