Having just had our offer accepted, I'm interested in this. We've viewed around 10 houses. The reason we rejected the other 9 was mainly due to garden size.
We compromised on: a private parking space, and being set back from the road with a front garden (although dh says that's a bonus as he hates maintaining them!). We also gave up having a semi (although it's a wide end terrace so not much difference)
We gained: more space than any other house we've viewed, a large garden and lots of character! We have an open fireplace, beams and floorboards. Plus a 3 minute walk to school! We also have 3 loos, which I find amusing.
I wasn't expecting this at all as I didn't realise there were any pretty houses in the area we were looking in (I think we drove down the street once and I assumed they were all tiny terraces). Where were your compromises?