Rupayan leans towards building more green apartments, as its demand is going up in the country. But, higher construction material prices and apartment registration costs make a challenge for realtors, CEO of Rupayan Housing Estate Ltd. Md Alinur Rahman told Ceramic Bangladesh (CB) in an exclusive interview. Bangladesh’s real estate sector, Md Alinur Rahman said, has boomed in recent years but today it’s going through a challenging situation due to a variety of issues. The sector has earlier flourished, thanks to the self-motivated venture of developers and realtors.