Too many variables, but when you add it all up its expensive to build a quality home. 1700 square ft finished upstairs and unfinished basement was over 300k. Depends on what kind of quality your looking for.
That seems pretty steep! We just got done putting up a 1450 SF Modular on a finished basement (2900 SF total finished space). All told: Grading, concrete work, 28x30 attached garage w/ concrete floor, new water service and line from 700' away, new electrical service with buried line from 700' away, 700' of new driveway ended up right around $250k. Keep in mind though I did a lot of the basement work myself which saved a bunch. I also built the garage myself. Again, big cost savings.
As for the specifics of the original post.
Basement concrete work: concrete floor, 9' ICF walls. $30,500.
Septic: $8,000.
Electric: Service hookup from Alliant. Includes about 700' of underground line. $8,200.
Electric: Local contractor trenching electric line from meter box to house (150' or so) $2,700.
Interior electrical work: $6,300.
Trenching water line from road to house (700') - $3000.
HVAC (including AC unit and furnace) $9,000.
Basement interior plumbing (I did the plumbing under the slab) $4,300.
Dirt work for digging basement: $2,500.
I had quotes for someone to finish the basement, but due to other circumstances, I ended up finishing most of it myself. The quote for labor and materials was $16k.
Shoot me a PM if you need any other specifics or have any questions. We just did ours this fall. If you are looking at building, I would HIGHLY recommend taking a good hard look at modular if you haven't already. It's very high quality (depending on who you use) and very reasonably priced. Ours ended up being around $78/SF. Very cheap compared to $100+ for stick built.