New Delhi, Aug. 2 -- United States-based millennial investor Todd Baldwin achieved millionaire status in his 30s by employing an investment strategy that combined earnings from his real estate and equity investments, according to a report by the Business Insider.

According to an article by Zillow, house hacking is the practice of renting a part of your own residence to generate income. Research by the platform showed that over the past five years, interest in the method has increased as a way to supplement the loan repayment or reduce mortgage cost.

Here's a look at how he used housing hacking to earn rental income and then invested that amount into index funds to build wealth.

According to the BI report, Baldwin bought his first prope...