Last month, a family preparing to move to St. Louis applied for mortgage pre-approval only after viewing properties. They thought pre-approval was just a formality. However, from the seller's perspective, offers without a pre-approval letter are not taken seriously. This family missed out on their dream home twice.

The St. Louis housing market is currently moving quickly. According to Redfin data, as of June 2026, the median sale price over the last three months is $255,000 for St. Louis City and $312,000 for St. Louis County, which is a 6.2% increase from the previous year. The average days on the market are just 17 days for the city and 11 days for the county. On average, there are two offers per property. Without pre-approval, it's hard to keep up with this pace.

Pre-approval is typically issued within a few days after application. It involves the lender reviewing income, debt, and credit scores. If you start touring properties before completing this process, you may not be ready to make an offer when you find a home you like. It's also common to meet with only one lender. The CFPB recommends comparing rates from at least three lenders. In areas like St. Louis, where conditions can vary by county, these differences can significantly affect monthly payments.

When budgeting, many people only consider principal and interest. The average property tax rate in Missouri is about 0.89%. However, St. Louis County has one of the highest rates in the state at 1.14%. When you add in homeowners insurance and maintenance costs, monthly expenses can exceed expectations. Areas with school districts preferred by Korean families often have relatively high tax rates. While you can refer to ratings from GreatSchools or Niche, be sure to verify assigned schools based on your address.

Some buyers skip home inspections out of fear of losing in a bidding war. However, in areas like St. Louis, which has a lot of older homes, plumbing or roof issues can lead to unexpected repair costs. Closing costs should also be estimated at 2-5% of the sale price. If you exhaust your down payment and dip into reserves, you may find yourself financially strained after moving in.

Another common mistake is affecting your credit status during the contract process. Some buyers feel secure once their offer is accepted and make large purchases, like furniture or a car, using credit cards. This can alter their debt-to-income ratio, potentially changing loan terms or, in severe cases, leading to a denial of approval. It's safer to postpone significant expenses until after closing. Repeated credit score inquiries can also impact your score, so it's advisable to compare lenders within a short timeframe.

Choosing between St. Louis City and St. Louis County is as important as budgeting. The city has relatively lower entry prices but mixed property tax rates, while the county has higher taxes but many areas with good school reputations. Instead of deciding based solely on immediate sale prices, consider commuting distances, how long you plan to live there, and which area may have more consistent demand when reselling. This approach is safer than making an emotionally rushed decision.

Missouri is prone to tornadoes and hail damage. Homeowners insurance may be priced higher than in other areas, so it's wise to obtain insurance quotes before making an offer and factor them into your budget. Especially if you're comparing properties across county lines, be sure to check for differences in insurance rates. Since lenders may calculate this item differently, it's a good idea to ask about whether the quote includes insurance costs.

If you're moving from another state, it's best not to estimate taxes and insurance based on your previous residence. St. Louis may seem to have a low barrier to entry due to the Midwest's lower cost of living, but it's safer to re-evaluate your budget considering total costs, including property taxes and closing costs. This article is not investment or legal advice, and it's recommended to consult with real estate and loan professionals before finalizing any contracts.