Everyone Wants to Retire Near the Grandkids. Almost Nobody Runs the Math
Moving retirement plans to follow a newborn grandchild sounds like a no-brainer until you price what it actually costs to become a captive buyer in someone else's housing market, tax regime, and zip code.
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This is one of the most common retirement questions we get, and it almost never comes with a spreadsheet attached. Someone in their late fifties or early sixties calls to say the first grandchild just arrived, and suddenly the retirement plan pointed at the Carolinas or Arizona is being redrawn around a zip code they never researched. The emotional logic is unimpeachable. The financial logic is where it gets interesting, because “near the grandkids” is a location constraint that quietly rewrites almost every other line in the budget. Let’s actually run it.
The Hidden Cost of Being a Price Taker
When you pick a retirement town for weather or taxes, you shop the whole country. When you pick it for proximity, you inherit your adult child’s housing market, state income tax regime, and property tax structure whether they suit your retirement or not. That is the entire game, and it is why the math looks so different from a generic 4% article.
The backdrop is not friendly right now. The Case-Shiller National Home Price Index sits at 335.1 as of May 2026, its highest reading in the trailing 12 months and roughly the 90th percentile historically. Existing home sales are running at a 4.09 million annualized pace in June 2026, squarely in what the market considers soft territory. You are buying near the top and, if you ever need to sell, doing it into thin demand. That is the entry price of proximity.
A Working Budget for a Couple Retiring at 65 Near Family
Assume a couple in a mid-tier metro where the kids landed for work, cost of living roughly at the national average. Numbers in current dollars:
- Housing, all-in: $33,600 a year. Modest mortgage or paid-off home with taxes, insurance, and maintenance reserve at roughly 1.5% of value annually.
- Healthcare: $8,400 for the couple, covering Medicare Part B, a Medigap plan, Part D, and out-of-pocket dental and vision.
- Food: $12,600, aligned with the USDA moderate-cost plan for two adults over 60.
- Utilities and transportation: $9,000.
- Miscellaneous and reserves: $12,000. This is where grandkid life lives: birthday and holiday gifts, summer camp contributions, 529 deposits, travel to see other grandkids, vehicle replacement, and emergency reserves.
- Federal and state tax on withdrawals: $6,000, assuming a blended effective rate on the taxable portion of the drawdown.
That lands around $82,000 a year. It is a comfortable, not lavish, budget, and it is well above the $78,535 average annual household expenditure reported in the 2024 Consumer Expenditure Survey, because retirees near family tend to spend more on the miscellaneous bucket.
Turning the Budget Into a Portfolio Number
Social Security for a two-earner couple claiming at full retirement age currently averages around $47,000 a year combined, and the 2026 COLA of 2.8% is now baked in. That leaves an $82,000 budget with a $35,000 gap.
Divide $35,000 by a 4% withdrawal rate and you get $875,000. Call it a portfolio target of roughly $900,000 in invested assets, held outside the primary residence, for a couple retiring at 65. Push the retirement age down to 60 and the bridge to Medicare alone adds $20,000 to $30,000 a year for five years, and you should tighten the withdrawal rate to 3.3% or 3.5%, which pushes the portfolio target past $1.2 million.
The lever most people miss is claim timing. Delaying Social Security from 67 to 70 lifts the combined benefit by roughly 24%, moving that $47,000 closer to $58,000 and shrinking the portfolio requirement by around $275,000 at a 4% rate. If the grandkid metro is expensive, delayed claiming is often the cleanest way to close the gap without saving another dollar.
The Consideration Almost Nobody Prices
Your adult children are mobile assets, and you are not. That variable separates this scenario from every other retirement math exercise.
If you buy a home to be near them and they relocate for a job in year six, you eat a round-trip transaction cost of roughly 8% to 10% of the home’s value between agent commissions, closing costs, and moving expenses. On a $500,000 house that is $40,000 to $50,000 gone, and you are selling into a market that, judging by the soft 4.09 million-unit existing-sales pace, may not reward you for patience. Layer on services PCE inflation running at 3.65% year over year in June 2026, which hits healthcare and housing services hardest, and the real erosion of a fixed portfolio during a stuck-in-place stretch is meaningful.
The structural fix is to rent for the first two years near the grandkids, or to buy a home priced well below what the lender will approve, so a forced sale in a soft market does not vaporize a chunk of the portfolio. Keep an extra 12 months of expenses in short treasuries as a mobility reserve, separate from the normal emergency fund. Think of it as optionality insurance on your children’s career decisions.
State tax is another quiet variable. Retiring near grandkids in Tennessee, Florida, or Texas is a very different portfolio problem than retiring in California or New York, where the cost of living index runs 110.72 and 107.921 respectively against a national baseline of 100. The same $82,000 budget in a high-cost coastal metro is closer to $95,000, and the portfolio target moves from $900,000 to roughly $1.2 million on the same 4% rule.
What It Actually Takes
For a couple retiring at 65 in a moderate-cost metro where their children have settled, the realistic number is a portfolio around $900,000, two average Social Security checks, a paid-down or modest mortgage, and a 4% withdrawal rate. In a high-cost coastal metro, the number is closer to $1.2 million and the case for delaying Social Security to 70 becomes strong. Retire before 63 and you need a pre-Medicare healthcare bridge and a tighter 3.3% to 3.5% withdrawal rate, which pushes the target past $1.2 million even in an average city.
Build the mobility reserve. The saving that no calculator flags is that the people you moved for might move themselves, and the housing market you would have to sell into is currently soft, elevated, and slow. Price that risk in dollars before you sign, and the near-the-grandkids retirement stops being a leap of faith and starts being a plan.
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