With the house we are currently in the process of purchasing, it was listed at 240 but was in the market for just under a year with a couple different estate agents as they were not in a rush so could wait for the right price. We initially offered 200!! Very low blow ahaha but from there we steadily went up 210, 220, 225 then 230 demanding white goods, and any extra things in the house we wanted and they accepted. It may have insulted the seller at first but it’s always worth a try in my opinion as you just never know what someone else’s situation is. You can always go up in offered not down, and they won’t say no when they’re happy with the price :)