Estimating demolition + construction costs.

[Peter Shi]

Hey guys, new to BP and new to developing in general.  I'm looking to buy/build in Madison, NJ.  There's a 100x100' lot in a great residential location with a very small house on it which is currently occupied.

Before getting quotes from builders, could anyone give me a ball-park sense of how much it'd be to first demolish then custom-build a ~3000 sqft single family 2 story residence?  Nothing fancy, more or less "cookie cutter" design.  This will be my primary residence.  Thanks.

Also, people mention "hard costs" vs "soft costs", what does this refer to?