I'll point you back to my previous posts. You haven't said what your expenses (mandatory like health care, taxes, food, etc. and optional like entertainment, travel and gifts). You haven't said if you'll have other income like pensions or social security. If your current house sells for $500,000 that leaves you with $1,500,000 assets. If your retirement account is your only source of income and you spend $250,000 on top of your home sale priceeds, your expenses would need to be between $37,500 and $50,000. Keep in mind that taxes and insurance on a beach property may be quite high and maintenance can be more than inland since the salt in the air causes corrosion. Bottom line, there's no formula for taking out money to buy a house that will work unless your remaining assets and any other income you may have are enough to produce an income stream sufficient to cover all of your expenses.