Are We Overextending Ourselves Financially? How to Know If You Can Afford to Move Up in Des Moines

Quick Answer

Can I afford to move up to a bigger home in Des Moines?

Most dual-income families in Des Moines earning $150,000–$250,000 combined can comfortably afford the $475,000–$575,000 move-up market in Johnston, Ankeny, and Urbandale — especially after applying home equity toward the down payment. The all-in monthly cost of a $525,000 home in Johnston with 15% down runs approximately $3,950–$4,600, which lands between 23–27% of gross income for a $200,000 household — well within the standard 28% guideline. The real question is not whether you can afford the payment, but whether the full monthly cost fits your lifestyle budget with enough margin for your other financial goals.

Your income is solid. Your home equity has grown. And every time you think seriously about moving up to that 4-bedroom home in Johnston or Ankeny, a quiet voice in the back of your head asks: "What if we're stretching too far?"

This instinct is healthy. The families I work with in Des Moines' northwest suburbs are not reckless — they are thoughtful professionals making one of the most consequential financial decisions of their lives. They want a real answer, not reassurance.

So here it is: a concrete, honest framework for knowing whether a move-up makes sense for your family — built on the actual numbers in Johnston, Ankeny, and Urbandale right now.

What the 28% Rule Actually Means for Des Moines Move-Up Buyers

The conventional mortgage guideline is that total housing costs — principal, interest, property taxes, and insurance (PITI) — should not exceed 28–30% of your gross monthly income.

For a family earning $200,000 per year combined, that allows $4,667–$5,000 per month in all-in housing costs.

Here is exactly what a $525,000 purchase in Johnston looks like at 15% down at current rates (~6.5%–6.7% average):

At a $200,000 household income, the total PITI lands between 21% and 22% of gross monthly income — meaningfully below the 28% guideline. Most move-up families I work with in Johnston and Ankeny are in a stronger position than they assumed.

Key number to remember: On a $525,000 home with 15% down, your net monthly increase over your current starter home mortgage is typically $400–$700 per month — not the full new payment. Your equity from the sale reduces the new loan amount substantially.

The Four Questions That Actually Determine Affordability

The 28% rule is a starting point, not the whole story. These four questions get closer to the real answer for your specific situation:

1. What does Your Cash Flow Look Like After All Housing Costs — Not Just the Mortgage?

A larger home in Johnston or Ankeny carries higher costs beyond the mortgage payment. A realistic all-in monthly budget for a move-up home includes the PITI above plus:

• Utility premium: Heating and cooling 3,000+ sq ft runs $150–$300/month more than a 1,800 sq ft starter home.
• HOA fees (if applicable in your target development): $35–$75/month.
• Increased lawn and maintenance costs: Budget $100–$200/month on a 0.35-acre lot.

Adding these to the base PITI brings the realistic all-in monthly cost to $3,950–$4,600 for a $525,000 home in Johnston. At $200,000 household income, that is still within the guideline — but knowing the true number prevents financial stress six months after closing.

2. Is Your Income Stable and Growing?

A family with two stable, growing career tracks can comfortably carry a larger mortgage because the trajectory supports it. A family anticipating a major income change — one partner leaving the workforce, a business in transition, or significant commission volatility — needs a more conservative cushion before committing.

I ask every client I work with: "What does your income picture look like in two years?" If the answer is "stronger than today," that changes the math in your favor.

3. Does the Payment Crowd Out Your Other Financial Goals?

This is the question the 28% rule cannot answer. Even if your housing costs are technically within guidelines, the most useful test is:

• Can you still fund retirement accounts at the same rate?
• Can you cover kids' activities, sports, and travel without strain?
• Can you handle a $10,000–$15,000 emergency without panic?
• Do you have 3–6 months of mortgage payments in reserve after closing?

If the new payment absorbs so much of your monthly budget that these goals are compromised, you have likely overextended — regardless of what the rule says. If you can fund all of the above comfortably, you have not.

4. Are You Comparing the Right Numbers?

Many families look at a $525,000 purchase and compare the full new mortgage payment to their current payment — forgetting that their net proceeds from the sale reduce the new loan amount substantially. Here is the actual math for a typical move-up scenario in these suburbs:

• Sell current home at $340,000: Net proceeds are ~$115,000 (after selling costs of 7–8%).
• Apply $80,000 toward new home down payment: That is 15%+ on a $525K purchase.
• New loan amount: ~$445,000 — not $525,000.
• Monthly P&I increase over current payment: Typically $400–$700, not $1,500+.

Watch Out for This Mistake: Comparing your current $1,800/month payment to the full new payment on a $525,000 loan dramatically overstates the actual increase. The correct comparison is: current payment vs. new payment on a loan reduced by your equity deployment. Run this calculation before you decide the move is unaffordable.

The Hidden Costs Worth Knowing Before You Commit

Beyond the monthly payment increase, move-up buyers in Johnston and Ankeny encounter cost increases that are easy to underestimate. None of these are dealbreakers for families in a strong financial position — but knowing them prevents unpleasant surprises after closing.

• Property taxes: Moving from a $310,000 assessed home to a $525,000 home in Johnston adds $3,000–$5,000 per year ($250–$417/month more).
• Homeowner's insurance: Larger home, higher value — expect $600–$1,200/year more than your starter home policy.
• Furnishing larger spaces: Bigger rooms need bigger furniture — budget $8,000–$20,000 over the first 12–18 months.
• Window treatments: A 3,000 sq ft home may have 20–25 windows — budget $3,000–$6,000 to cover them.
• Landscaping on a larger lot: Professional services on 0.35 acres run $1,500–$3,500/year.

The families I work with who navigate this transition most smoothly are the ones who account for all of these costs in advance — not just the mortgage payment. I walk through a complete cost-of-moving analysis with every client before we start the process.

The Correct Sequence: Know Your Numbers Before You Browse Listings

The move-up families who have the least financial stress are the ones who run the real numbers first — before they fall in love with a specific house in a specific neighborhood. Here is the sequence I recommend:

1. Get a precise market valuation of your current home from a local specialist — not Zillow. Zillow's estimates routinely vary 5–8% from actual market value.
2. Calculate your realistic net proceeds after agent commissions (5–6%), seller closing costs (1–2%), and any pre-listing repairs.
3. Get a formal pre-approval from a lender who works specifically with move-up buyers and understands coordinated dual transactions.
4. Model the all-in monthly cost at your target price range — mortgage, taxes, insurance, utilities, and HOA if applicable.
5. Assess the full picture: Does that monthly cost fit your lifestyle with adequate margin for all other financial goals?
6. Then browse listings — with a clear, accurate number in hand rather than an anxiety-inducing guess.

If the numbers work, we build a strategy. If they do not work yet — if you need 12–18 more months of equity build or an income milestone to hit first — I will tell you. My goal is not to facilitate a transaction. It is to help you make the right move at the right time for your family.

My Honest Assessment: Most of My Clients Can Afford It

The families I work with have often been underbought relative to their income for years — staying in a home they outgrew because the move felt financially risky or uncertain. In most cases, when we model the actual numbers with a trusted lender, the move is very manageable at their income level.

But knowing that with confidence — rather than just hoping — requires running the real numbers. The difference between "I think we can afford it" and "we've confirmed the numbers work" is enormous for your peace of mind throughout the process.