Are you talking about adding an addition and changing the floor plan(s)?
If so, there are MANY things that need to be considered! Since this is a HFH house, do YOU actually own it (I ask because some people lease to own or rent)? If so, then you need to go see your city/town's building department to determine your property lines, easements (where you CANNOT build), restrictions/codes, and apply for a permit. Then you need to hire a professional contractor--one that knows about "load bearing support walls/beams" and can do what you want within your budget. If you need a home improvement loan then you also need to do that with your bank.
at 9:04 AM on Jul. 13, 2009