Real estate investment involves the purchase, ownership, management, rental and/or sale of real estate for profit. Improvement of realty property as part of a real estate investment strategy is generally considered to be a sub-specialty of real estate investing called real estate development.

Both real estate funds and real estate investment trusts (REITs) are used when diversifying a long-term investment portfolio. A real estate fund is a type of mutual fund that primarily focuses on investing in securities offered by public real estate companies.

Property investment is big business, and, if done properly, can quickly become highly lucrative. It involves the purchase of a property, typically one that is still being built (off-plan property), with a view to enhancing it and either selling it on or leasing it out in order to gain a return.