I've been trying to figure out a good way to gauge the fluctuating cost of building an identical house in the same location for a while now; I'm too shy to ask around the builders in my area just to find out and then ask them again months later, etc... I've always assumed a good measure is how well builders' stocks are doing and the number of housing starts, since that number will inevitably fluctuate up and down faster than their employment numbers (more builders w/ nothing to do and dreading layoffs = cheaper bids; opposite when they are booked solid). But I really do not know much still.
The other issue with new house construction is the cost of buying the land; in some states it can be pretty expensive, including mine. And since the
corporate federal reserve is finally going to raise interest rates eventually sorta maybe... and you can't get a mortgage till the house is near completion (I've been told), you could get double-burned by paying currently inflated prices caused by cheap rates, only to be hit with 1% higher rates when you can actually take out the loan. That would suck, and is an uncertainty unique to only certain periods, again thanks to our benevolent federal reserve.
It's funny, I was about to necro this thread anyway,
having just read this (year old, but displays quite well the trend of housing becoming unaffordable again lately -- except for places in middle america with no jobs that no one wants to move to, and even those for the most part).