Buying a house

So I have a question. i’m pregnant now and when this baby comes we will be losing an extra spare room/my husbands computer room. We are just casually looking for a 4 bedroom house and we found one we really like, but I can’t figure out how much our offer should be for. The property history shows this house was built in 2017 and sold for 235,000, now it’s for sale for 265,000! How do you own a house for not even a full 3 years and expect to profit 30,000. Can houses really go up that much? Like i’m just so confused why they would list it so high? Or is it not high and does that sound reasonable lol?

Thanks for reading!