Nairobi, Aug. 18 -- Mark Muiruri, popularly known as Mark Mansa because of his YouTube channel Mansa Plus, has toured some of the most expensive homes in Kenya. He doesn't tour alone but with a camera crew that helps him put together a weekly show for his over 112,000 YouTube subscribers.

He has oohed and aahed over polished wooden floors, soaring ceilings, paneled walls, lush landscapes, private golf-padding section, koi ponds and infinity pools.

Mark, the 34-year-old marketing graduate from Kinangop, is not a wealthy buyer, but one of a handful of young people who, through their social media handles, are giving ordinary Kenyans detailed insights of homes previously accessed only by the wealthy.

Mansa means King in a West African dial...