Classified Marketplace base solution

[tridev]

I need to build a classified type marketplace for real estate. A website that allows people to register and add their own properties and land for sale. I need to customize it further with an API to integrate with some 3rd party APIs and authentication provider.

To write from scratch will take too long. Anyone can suggest a base project solution that I can get started with taht is extensible. Most I find are in PHP so that looks my only choice. I am a .NET developer but I know a little PHP.

 

[SaucePlz]

I have something like this (written in PHP), but for the vehicle industry. I have been toying with the idea of creating something similar for the property industry, but it's difficult to get going on something so big without knowing that there is a client for it. That and I'm just lazy sometimes.