If you're in it alone, I'd say 3 - 5 years.

hodbby · on May 4, 2012

Sorry, didnt get your answer. It may take me up to 5 years? and what do you mean by saying "... in it alone"

tzaman · on May 4, 2012

Okay, to build something like 42floors you need the following knowledge (guesstimating):

- HTML5

- CSS3

- Javascript

- basics of image manipulation

- some kind of backend language (PHP, Python, Ruby, Node.js,...)

- some kind of database engine knowledge (SQL, NoSQL, both?)

- user experience planning, testing and execution

- extensive server administration

- different APIs

These are just the technical aspects, now count in the whole business side of things. 3-5 years. Probably more if you want to master all of the above.

hodbby · on May 4, 2012

Got the picture. Well, that will not put me down. I have CS degree, I have 14 years experiences in High-Tech industry as a QA and lots of knowledge. My goal is to be a founder of a similar site (technically) like 24floors.com and I need to start somewhere. Thanks tzaman.

venturebros · on May 4, 2012

Truthfully it depends. Some people pick up on stuff quickly. Just come up with an idea and start building. I find that the best way to learn. If you get stuck just Google.

hodbby · on May 4, 2012

Google is the solution to any problem. Thanks god we have Google.