How to combine the old with the new in building geomantic omen?

Sandwiched between two new houses, the new houses on both sides sandwich the old house, which is harmful to the old house.

Old and new attacks are good for newcomers.

Destroy the old house and build a new one next to or behind it. After building a house, others borrow their own walls to build a house, and they are unhappy with others within 3 years.