Home buyers are willing to pay more to bask in natural light and multiply living space Call it a big glass revolution. No longer bound by rules that once effectively blocked the use of oversized glass in exterior home design, residential architects, builders, and developers can now offer a dazzling natural light show that’s wowing millennial and baby boomer home buyers looking to blur the lines between indoor and outdoor life. This big glass transformation comes without “… the high energy bills, drafty interiors, outside noise, and aesthetic limitations” usually associated with big glass design, says industry analyst Mariel Behnke of The Freedonia Group, a leading international business research company. And there’s good news for builders’ bottom lines too: About three out of four surveyed home buyers say they will pay a $4,000 premium for a large retractable glass sliding door, according to independent research and advisory firm John Burns Real Estate Consulting.