If you’ve been in your Silicon Valley home for 25 or 30 years and you’re thinking about downsizing, the question that keeps most people stuck isn’t where to go. It’s the order. Do you sell first and risk having nowhere to live, or buy first and risk carrying two houses? I hear some version of “I can’t sell until I know where I’m going, and I can’t buy until I’ve sold” in almost every first meeting with a downsizing couple, and it’s a completely reasonable fear. Most of the equity you have is tied up in the house you’re trying to leave.
The good news is that there are more ways to solve this than most people realize, and California’s Prop 19 gives homeowners over 55 a two-year window that makes the sequencing a lot more forgiving. So I’d like to walk through both paths, the financing tools that bridge the gap, and how I usually help clients decide. I’m a REALTOR®, not a lender or tax advisor, so please run the specific numbers by yours.
Key Takeaways
Summary: for most Silicon Valley downsizers, selling first with a rent-back is the safest path, while buying first works best for owners with cash, a HELOC in place, or a strong reason to move only once.
Why the Order Matters More for Downsizers
For a young family moving up, the buy-or-sell question is mostly about money. For downsizers it’s also about energy and health. Moving twice in a year is exhausting at 72 in a way it wasn’t at 42, and the clean-out of a 30-year home is a project all by itself. At the same time, most of my clients own their homes free and clear or close to it, which opens financing options a younger buyer wouldn’t have. The right order depends on three numbers: how much cash you can get to before your house sells, how much your new place will cost, and how long you can comfortably carry two properties. I wrote a whole piece on why downsizing can feel impossible, and this sequencing problem is a big part of it.
Sell First vs. Buy First at a Glance
| Sell first | Buy first | |
|---|---|---|
| Cash certainty | You know exactly what you netted | You’re estimating your sale price |
| Number of moves | Possibly two, unless you use a rent-back | One |
| Strength as a buyer | Strong, non-contingent offer with cash in hand | Strong if you have a bridge loan or HELOC, weak if contingent |
| Carrying costs | Rent or rent-back costs, if any | Two mortgages, taxes and insurance until your old home sells |
| Prep and staging | You may still be living in the home while it’s shown | You can move out, then prep and stage an empty house |
| Biggest risk | Not finding the right next home in time | Your old home takes longer to sell or sells for less |
Selling First: The Safest Path for Most Clients
When you sell first, you’re negotiating your new purchase with real money, not an estimate, and sellers on the other side see you as a non-contingent buyer, which matters in neighborhoods where multiple offers are normal. The usual worry is where you’ll live in between, and the most common answer is a seller rent-back. You close the sale, the buyer pays you, and you stay in the home for a set period while you buy and move.
For a short stay, California REALTORS® typically use a Seller in Possession addendum for 29 days or less, which is treated as a license rather than a tenancy. For 30 days or longer, a Residential Lease After Sale is common, and that creates a landlord-tenant relationship with deposit rules and possibly local tenant protections. Buyers with a standard owner-occupied mortgage generally have to move in within 60 days under the uniform deed of trust, so rent-backs much past 60 days are hard to negotiate unless your buyer is paying cash. In practice, a 30 to 60 day rent-back covers the timing for a lot of my clients, especially if we’ve already started looking before the house lists.
Simple Strategy Guide
The Downsizing Guide for Bay Area Seniors
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Buying First: Bridge Loans, HELOCs and Cash
Buying first makes the most sense when you’ve found the right place (a single-level home in Los Gatos doesn’t come up every week), when the move itself is hard on your health, or when you’d rather empty and prep your old house after you’ve settled in. The challenge is coming up with the down payment, and sometimes the whole price, before your sale closes. These are the tools I see most often.
HELOC on your current home
A home equity line of credit can be one of the cheapest bridges, but many lenders won’t open one on a house that’s already listed, so it has to be in place before you go on the market. Age isn’t a legal reason to deny you credit under federal fair lending rules, though lenders will still look at income and ability to repay, which can be harder for retirees living on Social Security and investment income.
Bridge loan
A bridge loan is a short-term loan secured by your current home, meant to be paid off when it sells. It’s faster to arrange than most people think, but rates and fees run higher than a regular mortgage, and terms vary a lot by lender, so get quotes from more than one. With Freddie Mac’s 30-year average at 7.28% as of October 1, 2026, short-term financing isn’t cheap, which is why I like to keep the overlap as short as possible.
Cash or securities
Some downsizers can buy outright using savings, a margin loan or a pledged-asset line against their portfolio, then replenish it when the house sells. It’s the cleanest option when it’s available, but talk to your financial advisor about the tax and market risk first.
Contingent offer
You can make an offer that’s contingent on selling your current home, but in most Silicon Valley neighborhoods that offer will lose to a non-contingent one. It can work for senior communities, new construction or slower segments of the market, so I don’t rule it out, but I wouldn’t build a plan around it.
Prop 19 Gives You a Two-Year Window
If you’re 55 or older, Prop 19 lets you transfer your low property tax base to a replacement home anywhere in California, up to three times, as long as you buy the new home within two years before or after selling the old one. According to the Board of Equalization, the value test depends on timing: if you buy first, the replacement has to be worth 100% or less of what the old home sells for to transfer the base as is. If you buy within the first year after selling, it’s 105%, and within the second year it’s 110%. If the new home is worth more than that, the difference is added to your transferred base rather than disqualifying you. You file the claim (form BOE-19-B) with the assessor in the county where the new home is, within three years.
Here’s an illustrative example. Say you sell your Cupertino home for $2,600,000, your current assessed value is about $450,000, and you buy a $1,400,000 condo in Aptos. Under Prop 19, you’d generally carry your roughly $450,000 base to the new home instead of being assessed at $1,400,000, which at a property tax rate around 1% is the difference between roughly $4,500 and $14,000 a year, every year. That’s real money, and the two-year window means you don’t have to buy and sell on the same day to get it. My Prop 19 explainer for seniors has more examples.
Prop 19 Calculator
Can You Take Your Low Property Tax With You?
If you're 55 or older, Prop 19 may let you carry your current tax base to a new home anywhere in California. Plug in your numbers and see what your property taxes could look like after you move.
Estimate My Property Taxes →Don’t Forget the Tax on the Sale Itself
The order you buy and sell doesn’t change your capital gains, but it’s worth knowing the number before you commit to a purchase price. Married couples can exclude up to $500,000 of gain on a primary residence and single owners up to $250,000 (IRS Publication 523), and in Silicon Valley a 30-year owner’s gain is often well past that. If part of your plan depends on the sale proceeds, have your CPA run the after-tax number first. My capital gains guide for long-time owners walks through it.
What I See With Downsizing Couples
A pattern I see a lot: a couple in their mid-seventies in a two-story Almaden home they bought in 1991. She’s ready to go and has already toured three single-level homes in Los Gatos. He’s not sure, and what he’s really worried about is ending up in a rental for six months with their furniture in storage. Their daughter, who lives in Willow Glen, wants them close and is the one emailing listings at midnight.
What usually works for a family like this is getting the house ready and lining up the purchase search at the same time, then selling first with a 45 to 60 day rent-back. He gets certainty that they’ll move only once, she gets to keep looking with real cash behind her offers, and the daughter gets a timeline she can plan around. When a couple has the cash or the HELOC to buy first, and the perfect place shows up, we flip the order and prep the old house after they’ve moved, which usually makes it show and sell better. Either way, the decision comes from the numbers and the couple’s energy level, not from whoever’s most anxious that week.
How I Help You Decide
When downsizing clients come to me, I start with three things: a realistic sale price and timeline for the current home, a look at the inventory in the places they’re considering, and a quick call with their lender or advisor to see what cash is available before the sale. From there the right order is usually obvious. I’ve helped older homeowners make this move since 2003, I hold the SRES® and CSA designations, and I’ve seen both paths work beautifully when they’re planned. If you’d like to map it out together, book a 30-minute call with me. If you’re moving to Santa Cruz County specifically, my post on selling and buying in Santa Cruz covers the local side, and my downsizing guide covers everything else.
Free Downsizing Strategy Call
Before you start sorting decades of belongings or call a moving company... let's figure out where you're headed and how to get there.
Most downsizing regrets come from doing things in the wrong order. In 30 minutes, we’ll talk through what your home may be worth, whether to buy or sell first, how Prop 19 could affect your property taxes, what the house actually needs before listing, and a realistic timeline for your move—so the process feels manageable, not overwhelming.
Book My Downsizing Strategy Call →Frequently Asked Questions
Should I buy or sell first when downsizing in the Bay Area?
For most downsizers, selling first with a rent-back is the safest path, because you know your cash and can make non-contingent offers. Buying first works best if you have cash, a HELOC already in place, or a bridge loan, and a strong reason to move only once.
How long can I rent back my house after I sell it?
Rent-backs of 29 days or less are usually handled with a Seller in Possession addendum, and 30 days or more with a Residential Lease After Sale. Buyers with standard owner-occupied mortgages generally have to move in within 60 days, so longer rent-backs are hard to negotiate unless the buyer is paying cash.
Can I get a HELOC on a house that’s listed for sale?
Many lenders won’t open a HELOC on a home that’s already on the market, so if you plan to use one to buy first, set it up before you list. Talk to your lender a month or two ahead so the line is open and available when you find the right home.
Does Prop 19 let me buy before I sell?
Yes. Prop 19 allows homeowners 55 and older to buy the replacement home up to two years before or after selling the original home. If you buy first, the replacement has to be worth 100% or less of the sale price to transfer the base as is.
Are contingent offers accepted in Silicon Valley?
Sometimes, but they usually lose to non-contingent offers in competitive neighborhoods. They’re more realistic for senior communities, new construction and slower segments of the market.
What’s a bridge loan?
A bridge loan is a short-term loan secured by your current home that gives you cash to buy the next one, and it’s paid off when your current home sells. Rates and fees are higher than a standard mortgage and vary by lender.
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