The honest floor is 50,000 BDT. That covers a genuinely responsive, mobile-first site — up to five core pages, custom design, real testing on the phones your Mirpur customers use, basic SEO, and bKash/Nagad payment setup, with the design-approval guarantee. The next tiers are 90,000 BDT (booking, blog, more pages) and 1,50,000 BDT (small ecommerce, multi-language). Fully custom builds start from 3,00,000 BDT. 50% advance, 50% on launch. Anyone quoting 12,000-20,000 taka for a "responsive" site is almost always selling a template that only shrinks, not one built for real phones.