According to Next Screen , Cost depends upon type of design .There aretwo type design demand mostly come which are mentioned below : Custmization web design Fresh web design Flash web design but less demanding due to flash is not seo friendly.Before start web design , check website portfolio, testimonials, website budget.
According to me,
Before design a web page , Designer know about website services. All ponits above mentioned are true, But
I am mentioned below some design aspect which is neccessery for website design :
Website Vaidate from W3C
No Broken link or 404 error.