Rent It Out or Sell It? A Silicon Valley Investor's Framework for Homes with Major Equity

You bought in Cupertino, Sunnyvale, or Los Gatos years ago. You are moving — up, out, or on. The house you are leaving holds more equity than most investment portfolios. So everyone from your neighbor to your cousin has an opinion: keep it as a rental, or sell it. Here is how to actually decide.

I have this conversation more than almost any other. Long-time Silicon Valley owners are sitting on extraordinary equity, and when a move is on the table, the keep-or-sell question deserves better than instinct. The right answer depends on three things: what the house earns as a rental, what that equity could earn elsewhere, and a tax clock that starts ticking the day you move out. Let's take them in order. One note before we start: I am a real estate agent, not a CPA — treat the tax points below as a map of the terrain and confirm your specifics with your tax advisor before acting.

The Case for Keeping It

The keep case rests on three real advantages. First, your property tax basis. Under Proposition 13, a home you have owned for fifteen or twenty years is taxed on a fraction of its current value — an operating cost advantage no new investor buying the same house today could replicate. Second, rents are genuinely strong: well-kept single-family homes in Cupertino, Saratoga, and Los Gatos commonly lease in the range of five to nine thousand dollars a month, driven by families chasing the same school districts that drive purchase demand. Third, re-entry is expensive. If you sell out of this market and change your mind in five years, you will likely pay meaningfully more to get back in than you netted going out.

There is also a quieter reason owners keep: the tenant pool here is exceptional. Relocating tech families with strong incomes, often on multi-year assignments, who want a house near work and schools — that is about as good as residential tenancy gets.

The Case for Selling

The sell case is usually stronger than owners expect, and it comes down to two numbers.

The first is the capital gains exclusion. If the home has been your primary residence for at least two of the last five years, current federal law lets a married couple exclude up to $500,000 of gain from tax ($250,000 for a single filer) when they sell. On a long-held Silicon Valley home, that exclusion is worth six figures in real money — and it does not last forever once you move out. More on that clock below.

The second is yield. Silicon Valley homes are appreciation assets, not cash-flow assets. A house worth $2.5 million renting for $7,500 a month grosses about 3.6 percent before vacancy, maintenance, insurance, property management, and taxes. Net, most owners land somewhere near two to three percent on the home's full value — and considerably less when you measure the return on your equity alone. Add California's tenant protection framework, which is workable but unforgiving of casual landlords, and the passive income picture is less passive than it looks.

Run the Actual Numbers

The single most useful exercise is a return-on-equity calculation. Not return on what you paid — return on what the house is worth today, because that is what you are choosing to leave invested.

When owners in Campbell or San Jose run this honestly, the result is often a two-to-three percent cash yield on their equity, with the rest of the return riding on continued appreciation. For some, that trade is exactly right — this market has rewarded patience for decades. For others, seeing the number in black and white is the moment the decision makes itself.

The Hybrid Paths Most Owners Miss

Keep-or-sell is not actually binary. Owners who rent the home for a period and then want out of the landlord business can often sell the property as an investment and roll the proceeds into other real estate through a 1031 exchange, deferring capital gains on the investment portion — I walk through exactly how that works in the Silicon Valley 1031 exchange playbook. Some redeploy one expensive house locally into several higher-yielding properties in more affordable California markets. And if you do rent it and later sell, timing and tenant handling matter enormously — that playbook is covered in selling with tenants in place.

The Three-Year Window

Here is the deadline that shapes everything: the primary-residence exclusion requires that you lived in the home for two of the five years before the sale. Move out, rent it, and roughly three years later that window closes — sell after it and the $500,000 exclusion is gone, with the entire gain treated as investment gain. That is why my advice to owners who are unsure is almost never "decide today." It is: know your date. Renting the house for a year or two while you settle into the next chapter can be a legitimate strategy — as long as the decision to keep or sell is made deliberately, before the window decides for you.

What the Market Is Saying Right Now

Timing the decision also means knowing what the sale side offers today. West Valley homes have been selling in roughly eleven to thirteen days at or above list price in Campbell, Los Gatos, and Saratoga — a seller's tape by any standard. I break down the current numbers in the mid-summer market check. Strong velocity does not mean you must sell — but it does mean the "sell" branch of your framework is priced generously right now.