Listed 53 days ago · May 27, 2026 | MLS# ML82048701
$3/sqft -100% vs Portola Valley avg
What this means: Priced below the Portola Valley per-sqft average. Compare to recent sales below for context.
Est. $306/moP&I $36 · Tax $7 · Insurance $262 · HOA $0Assumes 20% down ($1,400) at 6.75% · Contact Timothy for a lender referralAegis Luxury Real Estate is a licensed California real estate brokerage (DRE# 01328224) and is not a mortgage lender, mortgage broker, or loan originator. The figures shown are estimates for general reference only and do not constitute a loan offer, pre-approval, pre-qualification, or commitment to lend. Estimates use the applicable county average property tax rate of 1.25% of home price annually. Actual rates, payments, taxes, and insurance vary by lender and borrower qualifications. Contact Timothy for a referral to one of our preferred lending partners.
Active listing in Portola Valley, Santa Clara County. Convenient access to schools, parks, and Bay Area employment centers.
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3 Bed / 3 Bath / 2,210 sqft on 21,738 sqft Lot
Spec sheet at a glance. See full details below for interior, exterior, and lot features.
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Listed at $7K vs City Average $6.4M
$3/sqft compared to Portola Valley avg $1,602/sqft (-99.8%).
Best fit forActive BuyersPortola Valley SearchersMove-Up / Move-In
About This Home
Set on approximately half an acre in the Los Trancos neighborhood, 21 Old Spanish Trail offers a rare opportunity to lease a private retreat surrounded by natural beauty. This thoughtfully designed 3-bedroom, 3-bath residence blends comfort and sophistication with light-filled interiors and seamless indoor-outdoor living.
Spacious living and dining areas create an inviting setting for both everyday living and entertaining. The well-appointed kitchen features quality appliances, ample cabinetry, and a functional layout ideal for home chefs.
The generously sized bedrooms provide peaceful sanctuaries overlooking the lush surroundings, while a bonus room offers flexibility for a home office, media room, fitness space, or guest retreat.
Outdoor spaces invite relaxation, whether enjoying morning coffee on the patio or unwinding in the tranquility of the surrounding grounds.
Located just minutes from local trails, top-rated schools, and the charming amenities of Portola Valley, this home combines privacy with convenience.
MLS ID #ML82048701, Kavanaugh Group. Listing provided by Coldwell Banker Realty · MLSListings Inc.
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Property Details
Property Type
Single Family Residence
Year Built
1936
Bedrooms
3
Bathrooms
3 Full
Living Area
2,210 sqft
Lot Size
21,738 sqft
Garage
N/A
Price/sqft
$3
County
SanMateo
MLS Number
ML82048701
Status
Active
Stories
N/A
HOA
None
Interior Features
CentralForcedAir_Gas
Exterior & Lot
0.50 Acres
Location
This HomeActive ListingNew (3 days or less)Price ReducedOpen HouseSold
21 Old Spanish TRL, Portola Valley, CA 94028 · SanMateo County
Market Context
Price Positioning
$Price context: Listed at $3/sqft vs Portola Valley avg $1,602/sqft (99.8% below).
$Sale-to-list: Portola Valley homes selling at 98.2% of asking.
⏲Velocity: City avg 39 days. This home: 53 days.
🏠Inventory:0 3-bedroom homes currently available in Portola Valley.
Source: MLSListings Inc. Timothy Alston, Broker, DRE# 01328224.
Want to know what this home will actually sell for? Get a data-backed offer range based on recent comparable sales.
Buyers and sellers researching AlpineUplandsLosTrancos in Portola Valley will find 21 Old Spanish TRL to be a strong reference point. Listed at $7,000, this 3-bed, 3-bath home sits in a market where comparable properties average $1,602 per square foot. Homes in Portola Valley (94028) are currently averaging 39 days on market.
3-Bedroom Homes for Sale in Portola Valley 94028
Browse 3-bedroom single-family home listings in the AlpineUplandsLosTrancos area of Portola Valley. Properties in 94028 are currently averaging $1,602 per square foot with 39 days on market.
What to Expect When Buying in AlpineUplandsLosTrancos
The AlpineUplandsLosTrancos market in Portola Valley features a mix of single-family home properties ranging from starter homes to luxury estates. Current inventory levels suggest moderate conditions for buyers in this area.
Listed at $7,000 ($3/sqft). Portola Valley avg is $1,602/sqft, placing this 99.8% below. Comparable recent sales help frame the value.
Listed 53 days (as of May 27, 2026). Portola Valley average is 39 days.
Est. $306/mo with 20% down ($1,400) at 6.75%. Includes principal & interest ($36), property tax ($7), and insurance ($262). HOA: None. Aegis Luxury Real Estate is a licensed California real estate brokerage (DRE# 01328224) and is not a mortgage lender, mortgage broker, or loan originator. The figures shown are estimates for general reference only and do not constitute a loan offer, pre-approval, pre-qualification, or commitment to lend. Estimates use the applicable county average property tax rate of 1.25% of home price annually. Actual rates, payments, taxes, and insurance vary by lender and borrower qualifications. Contact Timothy for a referral to one of our preferred lending partners.
There are 14 active listings in Portola Valley (0 are 3-bedroom). At $7,000 this is positioned against the city average of $6,442,429. Similar homes have sold at 98.2% of asking.
3-bedroom homes in Portola Valley (94028) are currently averaging $1,602 per square foot. Market activity shows homes spending an average of 39 days on market in this area.
21 Old Spanish TRL in Portola Valley is currently listed at $7,000. This 3-bedroom, 3-bathroom single-family home is located in the AlpineUplandsLosTrancos area.
The data relating to real estate for sale on this display comes in part from the Internet Data Exchange program of the MLSListings™ MLS system. Real estate listings held by brokerage firms other than Aegis Luxury Real Estate are marked with the Internet Data Exchange icon (a stylized house) and detailed information about them includes the names of the listing brokers and listing agents.
Based on information from the MLSListings MLS as of Jul 19, 2026 3:15 PM PT. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
These statistics are generated using information from the MLSListings Inc. multiple listing service, but have not been verified and are not guaranteed. MLSListings Inc. disclaims any responsibility for the accuracy and reliability of these statistics. This information should not be relied upon for real estate transaction decisions.
Data updated every 15 minutes. Visit www.MLSListings.com for more information.
Information provided is for general informational purposes only. Equal Housing Opportunity. If you are currently working with a real estate agent, this is not intended as a solicitation.
Timothy Alston, Broker, DRE# 01328224, Aegis Luxury Real Estate, 10080 N. Wolfe Rd Ste SW3-200, Cupertino CA 95014. (408) 207-4593.
Last updated: Jul 19, 2026 3:15 PM PT | Source: MLSListings Inc.
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