Building your personal house using the company account?

Be careful.

Paying for it through the business doesn't automatically make it a business expense.

The key question is:

“What is this expense for?”

Personal house → personal expense.

Business property → different tax treatment, and construction costs are generally capital expenditure, not an immediate expense deduction.

Your bank account doesn't determine deductibility.

The purpose of the expense does.

Before putting that construction invoice through the business, ask:

“Does this expense help produce the business's income?”

If not, don't assume it's deductible.