San Martin
San Martin is unincorporated and almost entirely detached housing — 90.6% one-unit detached, the highest share in the service area.
The Numbers
San Martin market snapshot
| Measure | July 2026 |
|---|---|
| Median sale price — single-family re-sale homes | $1,325,000 |
| Average days on market | 7 |
| Homes sold | 4 |
| Year over year | -50.5% |
| Median year built (ACS 2020–2024) | 1975 |
| One-unit detached share | 90.6% |
Based on 4 recorded sales — a sample small enough that this median moves sharply month to month. Treat it as a reference point, not a valuation.
Price, days on market and sales count: MLSListings, Inc. via rereport.com, July 2026, single-family re-sale homes. Days on market is published as an average, not a median, and measures list date to contract rather than to close. Housing-stock figures where shown are US Census ACS 2020–2024 five-year estimates. Figures change monthly — ask me for the current month before making a decision on them.
Housing stock
Median year built 1975. Parcels are large by county standards, and rural infrastructure is the norm rather than the exception: on-site septic, private wells, and in places shared road access. Any transaction here should begin with confirming water source, septic condition and legal access, because those three items drive both value and loan approval.
Getting around
Sits on Highway 101 between Morgan Hill and Gilroy, with San Martin Airport at its centre. Unincorporated status means county rather than city land-use jurisdiction, which changes permitting for additions, accessory dwelling units and agricultural use.
What Prop 19 means for a longtime San Martin owner
Large-parcel owners here often face a different decision from suburban downsizers: the property may be part working land rather than purely residential. Prop 19's base-year transfer applies to the principal residence, and where a parcel mixes uses the analysis needs an assessor-level look before assumptions get made.
If you are 55 or older you can carry your existing property-tax base to a replacement home anywhere in California, up to three times. Read the Prop 19 guide, or run your net proceeds to see what a sale actually leaves you.
Selling here
Only four single-family sales closed in July, so the median carries almost no statistical weight and the 50.5% year-over-year figure is an artefact of comparing four sales against one. Pricing here has to be built from individual comparable properties, not from a market median.
Straight about the numbers: the figures above are transcribed from the sources named, for the month named. They describe a market, not your house. Condition, location within the city, lot and timing move an individual sale far more than a median does. Nothing here is legal or tax advice — your attorney and CPA have the final word.
What’s your San Martin home worth?
A median tells you about the market. It doesn’t tell you about your house. Send me the address and I’ll put together a real analysis by hand — genuinely comparable sales near you, condition adjustments, and an honest range. If it’s not a good moment to sell, I’ll say so.
Thinking about selling in San Martin?
A What's-Next Consultation covers your realistic value, your net after taxes, your Prop 19 options and the sequence that protects them. A conversation, not a pitch.
Book a What's-Next Consultation