A bigger place brings bigger bills, and not just on the mortgage or rent payment. You've got more space to heat and cool, and more items that use energy, like a big refrigerator or a dishwasher.
Having more means that you're using more power, water, and gas, and bills can add up much quicker in a single-family house than they do in a small apartment.
Heating, for example, is a major cost. In a typical one-bedroom apartment, electricity bills are generally between $30 and $50 without heat, and $160 when including heat, according to ApartmentList. With a house, your costs could be much higher when you have more square footage and bedrooms to heat.