How much will an addition cost on my house?

There are so many variables..that it is not a simple answer. $75 to $125 is a good range for a simple addition with minimal or no bathrooms.

The variables that will cause the price per square foot to range from $50 to $500 per square foot are..

1. the design of the addition - is it a simple box or something more complicated
2. who does the work - are you hiring it all done or doing some of yourself
3. which contractor you hire - their quotes can vary by 10, 20 or even 30% for similiar quality, etc.
4. the type and quality of materials - flooring, fixtures, windows, etc. etc.
5. do your plans include bathrooms and kitchens..they are much more expensive then a living room or bedroom addition.

The website www.remodelormove.com has a free online cost calculator that gives an OK estimate..but only after you have done a preliminary design and talked with 3 or more contractors can you get an accurate estimate.

And some say you wont really KNOW how much it will cost until it is done!

Good luck