I'm (hopefully) about to buy my first house and I'm not sure what to offer. The house has been listed with a guide price range, which I've never seen before. I've only ever seen 'guide price' associated with properties going to auction. My partner thinks we should offer around 8% under the lower end of the range. My thinking is that the lower figure would be their minimum acceptable. I think I've also done myself a disservice by not playing it cool and being too upfront with the agent!! What would be a reasonable offer in this situation?